import { ToolResponse, Part } from './parts.js';
import { z } from '@genkit-ai/core';
import { MessageData } from './model-types.js';

/**
 * Schema for the canonical Genkit error wire shape (`{status, message,
 * details}`). This is the form runtimes use when an error travels as data
 * inside another value (e.g. agent outputs and session snapshots).
 */
declare const RuntimeErrorSchema: z.ZodObject<{
    /** Canonical status name (e.g. `INTERNAL`, `FAILED_PRECONDITION`). */
    status: z.ZodOptional<z.ZodString>;
    /** Human-readable error message. */
    message: z.ZodString;
    /** Optional structured details describing the failure. */
    details: z.ZodOptional<z.ZodAny>;
}, "strip", z.ZodTypeAny, {
    message: string;
    status?: string | undefined;
    details?: any;
}, {
    message: string;
    status?: string | undefined;
    details?: any;
}>;
/** Structured error carried as data inside agent outputs and snapshots. */
type RuntimeError = z.infer<typeof RuntimeErrorSchema>;
/**
 * Schema for tracking persistent artifacts generated during a session turn.
 */
declare const ArtifactSchema: z.ZodObject<{
    /** Name identifies the artifact (e.g., "generated_code.go", "diagram.png"). */
    name: z.ZodOptional<z.ZodString>;
    /** Parts contains the artifact content (text, media, etc.). */
    parts: z.ZodArray<z.ZodUnion<[z.ZodObject<{
        media: z.ZodOptional<z.ZodNever>;
        toolRequest: z.ZodOptional<z.ZodNever>;
        toolResponse: z.ZodOptional<z.ZodNever>;
        data: z.ZodOptional<z.ZodUnknown>;
        metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
        custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
        reasoning: z.ZodOptional<z.ZodNever>;
        resource: z.ZodOptional<z.ZodNever>;
    } & {
        text: z.ZodString;
    }, "strip", z.ZodTypeAny, {
        text: string;
        custom?: Record<string, unknown> | undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        metadata?: Record<string, unknown> | undefined;
        reasoning?: undefined;
        resource?: undefined;
    }, {
        text: string;
        custom?: Record<string, unknown> | undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        metadata?: Record<string, unknown> | undefined;
        reasoning?: undefined;
        resource?: undefined;
    }>, z.ZodObject<{
        text: z.ZodOptional<z.ZodNever>;
        toolRequest: z.ZodOptional<z.ZodNever>;
        toolResponse: z.ZodOptional<z.ZodNever>;
        data: z.ZodOptional<z.ZodUnknown>;
        metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
        custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
        reasoning: z.ZodOptional<z.ZodNever>;
        resource: z.ZodOptional<z.ZodNever>;
    } & {
        media: z.ZodObject<{
            contentType: z.ZodOptional<z.ZodString>;
            url: z.ZodString;
        }, "strip", z.ZodTypeAny, {
            url: string;
            contentType?: string | undefined;
        }, {
            url: string;
            contentType?: string | undefined;
        }>;
    }, "strip", z.ZodTypeAny, {
        media: {
            url: string;
            contentType?: string | undefined;
        };
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        metadata?: Record<string, unknown> | undefined;
        reasoning?: undefined;
        resource?: undefined;
    }, {
        media: {
            url: string;
            contentType?: string | undefined;
        };
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        metadata?: Record<string, unknown> | undefined;
        reasoning?: undefined;
        resource?: undefined;
    }>, z.ZodObject<{
        text: z.ZodOptional<z.ZodNever>;
        media: z.ZodOptional<z.ZodNever>;
        toolResponse: z.ZodOptional<z.ZodNever>;
        data: z.ZodOptional<z.ZodUnknown>;
        metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
        custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
        reasoning: z.ZodOptional<z.ZodNever>;
        resource: z.ZodOptional<z.ZodNever>;
    } & {
        toolRequest: z.ZodObject<{
            ref: z.ZodOptional<z.ZodString>;
            name: z.ZodString;
            input: z.ZodOptional<z.ZodUnknown>;
            partial: z.ZodOptional<z.ZodBoolean>;
        }, "strip", z.ZodTypeAny, {
            name: string;
            ref?: string | undefined;
            input?: unknown;
            partial?: boolean | undefined;
        }, {
            name: string;
            ref?: string | undefined;
            input?: unknown;
            partial?: boolean | undefined;
        }>;
    }, "strip", z.ZodTypeAny, {
        toolRequest: {
            name: string;
            ref?: string | undefined;
            input?: unknown;
            partial?: boolean | undefined;
        };
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        metadata?: Record<string, unknown> | undefined;
        reasoning?: undefined;
        resource?: undefined;
    }, {
        toolRequest: {
            name: string;
            ref?: string | undefined;
            input?: unknown;
            partial?: boolean | undefined;
        };
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        metadata?: Record<string, unknown> | undefined;
        reasoning?: undefined;
        resource?: undefined;
    }>, z.ZodObject<{
        text: z.ZodOptional<z.ZodNever>;
        media: z.ZodOptional<z.ZodNever>;
        toolRequest: z.ZodOptional<z.ZodNever>;
        data: z.ZodOptional<z.ZodUnknown>;
        metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
        custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
        reasoning: z.ZodOptional<z.ZodNever>;
        resource: z.ZodOptional<z.ZodNever>;
    } & {
        toolResponse: z.ZodType<ToolResponse, z.ZodTypeDef, ToolResponse>;
    }, "strip", z.ZodTypeAny, {
        toolResponse: {
            name: string;
            ref?: string | undefined;
            output?: unknown;
        } & {
            content?: Part[];
        };
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        data?: unknown;
        metadata?: Record<string, unknown> | undefined;
        reasoning?: undefined;
        resource?: undefined;
    }, {
        toolResponse: {
            name: string;
            ref?: string | undefined;
            output?: unknown;
        } & {
            content?: Part[];
        };
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        data?: unknown;
        metadata?: Record<string, unknown> | undefined;
        reasoning?: undefined;
        resource?: undefined;
    }>, z.ZodObject<{
        text: z.ZodOptional<z.ZodNever>;
        media: z.ZodOptional<z.ZodNever>;
        toolRequest: z.ZodOptional<z.ZodNever>;
        toolResponse: z.ZodOptional<z.ZodNever>;
        metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
        custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
        reasoning: z.ZodOptional<z.ZodNever>;
        resource: z.ZodOptional<z.ZodNever>;
    } & {
        data: z.ZodUnknown;
    }, "strip", z.ZodTypeAny, {
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        metadata?: Record<string, unknown> | undefined;
        reasoning?: undefined;
        resource?: undefined;
    }, {
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        metadata?: Record<string, unknown> | undefined;
        reasoning?: undefined;
        resource?: undefined;
    }>, z.ZodObject<{
        text: z.ZodOptional<z.ZodNever>;
        media: z.ZodOptional<z.ZodNever>;
        toolRequest: z.ZodOptional<z.ZodNever>;
        toolResponse: z.ZodOptional<z.ZodNever>;
        data: z.ZodOptional<z.ZodUnknown>;
        metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
        reasoning: z.ZodOptional<z.ZodNever>;
        resource: z.ZodOptional<z.ZodNever>;
    } & {
        custom: z.ZodRecord<z.ZodString, z.ZodAny>;
    }, "strip", z.ZodTypeAny, {
        custom: Record<string, any>;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        metadata?: Record<string, unknown> | undefined;
        reasoning?: undefined;
        resource?: undefined;
    }, {
        custom: Record<string, any>;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        metadata?: Record<string, unknown> | undefined;
        reasoning?: undefined;
        resource?: undefined;
    }>, z.ZodObject<{
        text: z.ZodOptional<z.ZodNever>;
        media: z.ZodOptional<z.ZodNever>;
        toolRequest: z.ZodOptional<z.ZodNever>;
        toolResponse: z.ZodOptional<z.ZodNever>;
        data: z.ZodOptional<z.ZodUnknown>;
        metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
        custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
        resource: z.ZodOptional<z.ZodNever>;
    } & {
        reasoning: z.ZodString;
    }, "strip", z.ZodTypeAny, {
        reasoning: string;
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        metadata?: Record<string, unknown> | undefined;
        resource?: undefined;
    }, {
        reasoning: string;
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        metadata?: Record<string, unknown> | undefined;
        resource?: undefined;
    }>, z.ZodObject<{
        text: z.ZodOptional<z.ZodNever>;
        media: z.ZodOptional<z.ZodNever>;
        toolRequest: z.ZodOptional<z.ZodNever>;
        toolResponse: z.ZodOptional<z.ZodNever>;
        data: z.ZodOptional<z.ZodUnknown>;
        metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
        custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
        reasoning: z.ZodOptional<z.ZodNever>;
    } & {
        resource: z.ZodObject<{
            uri: z.ZodString;
        }, "strip", z.ZodTypeAny, {
            uri: string;
        }, {
            uri: string;
        }>;
    }, "strip", z.ZodTypeAny, {
        resource: {
            uri: string;
        };
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        metadata?: Record<string, unknown> | undefined;
        reasoning?: undefined;
    }, {
        resource: {
            uri: string;
        };
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        metadata?: Record<string, unknown> | undefined;
        reasoning?: undefined;
    }>]>, "many">;
    /** Metadata contains additional artifact-specific data. */
    metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodAny>>;
}, "strip", z.ZodTypeAny, {
    parts: ({
        text: string;
        custom?: Record<string, unknown> | undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        metadata?: Record<string, unknown> | undefined;
        reasoning?: undefined;
        resource?: undefined;
    } | {
        media: {
            url: string;
            contentType?: string | undefined;
        };
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        metadata?: Record<string, unknown> | undefined;
        reasoning?: undefined;
        resource?: undefined;
    } | {
        toolRequest: {
            name: string;
            ref?: string | undefined;
            input?: unknown;
            partial?: boolean | undefined;
        };
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        metadata?: Record<string, unknown> | undefined;
        reasoning?: undefined;
        resource?: undefined;
    } | {
        toolResponse: {
            name: string;
            ref?: string | undefined;
            output?: unknown;
        } & {
            content?: Part[];
        };
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        data?: unknown;
        metadata?: Record<string, unknown> | undefined;
        reasoning?: undefined;
        resource?: undefined;
    } | {
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        metadata?: Record<string, unknown> | undefined;
        reasoning?: undefined;
        resource?: undefined;
    } | {
        custom: Record<string, any>;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        metadata?: Record<string, unknown> | undefined;
        reasoning?: undefined;
        resource?: undefined;
    } | {
        reasoning: string;
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        metadata?: Record<string, unknown> | undefined;
        resource?: undefined;
    } | {
        resource: {
            uri: string;
        };
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        metadata?: Record<string, unknown> | undefined;
        reasoning?: undefined;
    })[];
    name?: string | undefined;
    metadata?: Record<string, any> | undefined;
}, {
    parts: ({
        text: string;
        custom?: Record<string, unknown> | undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        metadata?: Record<string, unknown> | undefined;
        reasoning?: undefined;
        resource?: undefined;
    } | {
        media: {
            url: string;
            contentType?: string | undefined;
        };
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        metadata?: Record<string, unknown> | undefined;
        reasoning?: undefined;
        resource?: undefined;
    } | {
        toolRequest: {
            name: string;
            ref?: string | undefined;
            input?: unknown;
            partial?: boolean | undefined;
        };
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        metadata?: Record<string, unknown> | undefined;
        reasoning?: undefined;
        resource?: undefined;
    } | {
        toolResponse: {
            name: string;
            ref?: string | undefined;
            output?: unknown;
        } & {
            content?: Part[];
        };
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        data?: unknown;
        metadata?: Record<string, unknown> | undefined;
        reasoning?: undefined;
        resource?: undefined;
    } | {
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        metadata?: Record<string, unknown> | undefined;
        reasoning?: undefined;
        resource?: undefined;
    } | {
        custom: Record<string, any>;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        metadata?: Record<string, unknown> | undefined;
        reasoning?: undefined;
        resource?: undefined;
    } | {
        reasoning: string;
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        metadata?: Record<string, unknown> | undefined;
        resource?: undefined;
    } | {
        resource: {
            uri: string;
        };
        custom?: Record<string, unknown> | undefined;
        text?: undefined;
        media?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
        data?: unknown;
        metadata?: Record<string, unknown> | undefined;
        reasoning?: undefined;
    })[];
    name?: string | undefined;
    metadata?: Record<string, any> | undefined;
}>;
/**
 * Artifact generated during a session turn.
 */
type Artifact = z.infer<typeof ArtifactSchema>;
/**
 * Schema for a snapshot's lifecycle status.
 *
 * - `pending`: a detached invocation is still processing the queued inputs.
 *   The snapshot's state is empty until the background work finishes, at
 *   which point it is rewritten with the cumulative final state and a
 *   terminal status.
 * - `completed`: the snapshot captures a settled state.
 * - `aborted`: the snapshot's invocation was aborted via the `abort` companion
 *   action while detached.
 * - `failed`: the invocation terminated with an error. The snapshot's `error`
 *   field describes the failure and resume is rejected with that same error.
 * - `expired`: a `pending` snapshot whose detached background worker is
 *   presumed dead because its heartbeat went stale. Computed on read from a
 *   stale `heartbeatAt`; never persisted (the dead worker can no longer write
 *   a terminal status itself).
 */
declare const SnapshotStatusSchema: z.ZodEnum<["pending", "completed", "aborted", "failed", "expired"]>;
/**
 * Lifecycle status of a session snapshot.
 */
type SnapshotStatus = z.infer<typeof SnapshotStatusSchema>;
/**
 * Reason an agent turn (or whole invocation) finished.
 *
 * The first group mirrors the model-level `FinishReason` so a turn backed by a
 * single `generate` call can forward its reason verbatim. The remaining values
 * are agent-specific outcomes with no `generate`-level equivalent: `aborted`
 * (the turn/invocation was aborted), `detached` (the turn was moved to the
 * background), and `failed` (the turn ended in an error).
 */
declare const AgentFinishReasonSchema: z.ZodEnum<["stop", "length", "blocked", "interrupted", "other", "unknown", "aborted", "detached", "failed"]>;
/**
 * Reason an agent turn (or whole invocation) finished.
 */
type AgentFinishReason = z.infer<typeof AgentFinishReasonSchema>;
/**
 * Schema for session execution state.
 */
declare const SessionStateSchema: z.ZodObject<{
    sessionId: z.ZodOptional<z.ZodString>;
    messages: z.ZodOptional<z.ZodArray<z.ZodObject<{
        role: z.ZodEnum<["system", "user", "model", "tool"]>;
        content: z.ZodArray<z.ZodUnion<[z.ZodObject<{
            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            text: z.ZodString;
        }, "strip", z.ZodTypeAny, {
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            media: z.ZodObject<{
                contentType: z.ZodOptional<z.ZodString>;
                url: z.ZodString;
            }, "strip", z.ZodTypeAny, {
                url: string;
                contentType?: string | undefined;
            }, {
                url: string;
                contentType?: string | undefined;
            }>;
        }, "strip", z.ZodTypeAny, {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            toolRequest: z.ZodObject<{
                ref: z.ZodOptional<z.ZodString>;
                name: z.ZodString;
                input: z.ZodOptional<z.ZodUnknown>;
                partial: z.ZodOptional<z.ZodBoolean>;
            }, "strip", z.ZodTypeAny, {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            }, {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            }>;
        }, "strip", z.ZodTypeAny, {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            toolResponse: z.ZodType<ToolResponse, z.ZodTypeDef, ToolResponse>;
        }, "strip", z.ZodTypeAny, {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
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            toolRequest: z.ZodOptional<z.ZodNever>;
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            toolRequest?: undefined;
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            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
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            resource?: undefined;
        }>, z.ZodObject<{
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            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
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            media: {
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                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
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                output?: unknown;
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            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
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            resource?: undefined;
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            resource: {
                uri: string;
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            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
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        role: "system" | "user" | "model" | "tool";
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        name?: string | undefined;
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                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        } | {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        })[];
        name?: string | undefined;
        metadata?: Record<string, any> | undefined;
    }>, "many">>;
}, "strip", z.ZodTypeAny, {
    custom?: any;
    sessionId?: string | undefined;
    messages?: {
        role: "system" | "user" | "model" | "tool";
        content: ({
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        } | {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        })[];
        metadata?: Record<string, unknown> | undefined;
    }[] | undefined;
    artifacts?: {
        parts: ({
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        } | {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        })[];
        name?: string | undefined;
        metadata?: Record<string, any> | undefined;
    }[] | undefined;
}, {
    custom?: any;
    sessionId?: string | undefined;
    messages?: {
        role: "system" | "user" | "model" | "tool";
        content: ({
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        } | {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        })[];
        metadata?: Record<string, unknown> | undefined;
    }[] | undefined;
    artifacts?: {
        parts: ({
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        } | {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        })[];
        name?: string | undefined;
        metadata?: Record<string, any> | undefined;
    }[] | undefined;
}>;
/**
 * State persisted for a session across turns.
 *
 * Runtime variant of {@link SessionStateSchema}, generic over the custom state
 * type `S` so callers can type `custom`.
 */
interface SessionState<S = unknown> {
    sessionId?: string;
    messages?: MessageData[];
    custom?: S;
    artifacts?: Artifact[];
}
/**
 * Schema for agent input messages and commands.
 */
declare const AgentInputSchema: z.ZodObject<{
    /** User's input message for this turn. */
    message: z.ZodOptional<z.ZodObject<{
        role: z.ZodEnum<["system", "user", "model", "tool"]>;
        content: z.ZodArray<z.ZodUnion<[z.ZodObject<{
            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            text: z.ZodString;
        }, "strip", z.ZodTypeAny, {
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            media: z.ZodObject<{
                contentType: z.ZodOptional<z.ZodString>;
                url: z.ZodString;
            }, "strip", z.ZodTypeAny, {
                url: string;
                contentType?: string | undefined;
            }, {
                url: string;
                contentType?: string | undefined;
            }>;
        }, "strip", z.ZodTypeAny, {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            toolRequest: z.ZodObject<{
                ref: z.ZodOptional<z.ZodString>;
                name: z.ZodString;
                input: z.ZodOptional<z.ZodUnknown>;
                partial: z.ZodOptional<z.ZodBoolean>;
            }, "strip", z.ZodTypeAny, {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            }, {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            }>;
        }, "strip", z.ZodTypeAny, {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            toolResponse: z.ZodType<ToolResponse, z.ZodTypeDef, ToolResponse>;
        }, "strip", z.ZodTypeAny, {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            data: z.ZodUnknown;
        }, "strip", z.ZodTypeAny, {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            custom: z.ZodRecord<z.ZodString, z.ZodAny>;
        }, "strip", z.ZodTypeAny, {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            reasoning: z.ZodString;
        }, "strip", z.ZodTypeAny, {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        }, {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
        } & {
            resource: z.ZodObject<{
                uri: z.ZodString;
            }, "strip", z.ZodTypeAny, {
                uri: string;
            }, {
                uri: string;
            }>;
        }, "strip", z.ZodTypeAny, {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        }, {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        }>]>, "many">;
        metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
    }, "strip", z.ZodTypeAny, {
        role: "system" | "user" | "model" | "tool";
        content: ({
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        } | {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        })[];
        metadata?: Record<string, unknown> | undefined;
    }, {
        role: "system" | "user" | "model" | "tool";
        content: ({
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        } | {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        })[];
        metadata?: Record<string, unknown> | undefined;
    }>>;
    /** Options for resuming an interrupted generation. */
    resume: z.ZodOptional<z.ZodObject<{
        respond: z.ZodOptional<z.ZodArray<z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            toolResponse: z.ZodType<ToolResponse, z.ZodTypeDef, ToolResponse>;
        }, "strip", z.ZodTypeAny, {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, "many">>;
        restart: z.ZodOptional<z.ZodArray<z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            toolRequest: z.ZodObject<{
                ref: z.ZodOptional<z.ZodString>;
                name: z.ZodString;
                input: z.ZodOptional<z.ZodUnknown>;
                partial: z.ZodOptional<z.ZodBoolean>;
            }, "strip", z.ZodTypeAny, {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            }, {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            }>;
        }, "strip", z.ZodTypeAny, {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, "many">>;
    }, "strip", z.ZodTypeAny, {
        respond?: {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }[] | undefined;
        restart?: {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }[] | undefined;
    }, {
        respond?: {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }[] | undefined;
        restart?: {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }[] | undefined;
    }>>;
    detach: z.ZodOptional<z.ZodBoolean>;
}, "strip", z.ZodTypeAny, {
    message?: {
        role: "system" | "user" | "model" | "tool";
        content: ({
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        } | {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        })[];
        metadata?: Record<string, unknown> | undefined;
    } | undefined;
    resume?: {
        respond?: {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }[] | undefined;
        restart?: {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }[] | undefined;
    } | undefined;
    detach?: boolean | undefined;
}, {
    message?: {
        role: "system" | "user" | "model" | "tool";
        content: ({
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        } | {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        })[];
        metadata?: Record<string, unknown> | undefined;
    } | undefined;
    resume?: {
        respond?: {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }[] | undefined;
        restart?: {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }[] | undefined;
    } | undefined;
    detach?: boolean | undefined;
}>;
/**
 * Input received by an agent turn.
 */
type AgentInput = z.infer<typeof AgentInputSchema>;
/**
 * Schema for initializing an agent turn.
 */
declare const AgentInitSchema: z.ZodObject<{
    snapshotId: z.ZodOptional<z.ZodString>;
    sessionId: z.ZodOptional<z.ZodString>;
    state: z.ZodOptional<z.ZodObject<{
        sessionId: z.ZodOptional<z.ZodString>;
        messages: z.ZodOptional<z.ZodArray<z.ZodObject<{
            role: z.ZodEnum<["system", "user", "model", "tool"]>;
            content: z.ZodArray<z.ZodUnion<[z.ZodObject<{
                media: z.ZodOptional<z.ZodNever>;
                toolRequest: z.ZodOptional<z.ZodNever>;
                toolResponse: z.ZodOptional<z.ZodNever>;
                data: z.ZodOptional<z.ZodUnknown>;
                metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                reasoning: z.ZodOptional<z.ZodNever>;
                resource: z.ZodOptional<z.ZodNever>;
            } & {
                text: z.ZodString;
            }, "strip", z.ZodTypeAny, {
                text: string;
                custom?: Record<string, unknown> | undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }, {
                text: string;
                custom?: Record<string, unknown> | undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }>, z.ZodObject<{
                text: z.ZodOptional<z.ZodNever>;
                toolRequest: z.ZodOptional<z.ZodNever>;
                toolResponse: z.ZodOptional<z.ZodNever>;
                data: z.ZodOptional<z.ZodUnknown>;
                metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                reasoning: z.ZodOptional<z.ZodNever>;
                resource: z.ZodOptional<z.ZodNever>;
            } & {
                media: z.ZodObject<{
                    contentType: z.ZodOptional<z.ZodString>;
                    url: z.ZodString;
                }, "strip", z.ZodTypeAny, {
                    url: string;
                    contentType?: string | undefined;
                }, {
                    url: string;
                    contentType?: string | undefined;
                }>;
            }, "strip", z.ZodTypeAny, {
                media: {
                    url: string;
                    contentType?: string | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }, {
                media: {
                    url: string;
                    contentType?: string | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }>, z.ZodObject<{
                text: z.ZodOptional<z.ZodNever>;
                media: z.ZodOptional<z.ZodNever>;
                toolResponse: z.ZodOptional<z.ZodNever>;
                data: z.ZodOptional<z.ZodUnknown>;
                metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                reasoning: z.ZodOptional<z.ZodNever>;
                resource: z.ZodOptional<z.ZodNever>;
            } & {
                toolRequest: z.ZodObject<{
                    ref: z.ZodOptional<z.ZodString>;
                    name: z.ZodString;
                    input: z.ZodOptional<z.ZodUnknown>;
                    partial: z.ZodOptional<z.ZodBoolean>;
                }, "strip", z.ZodTypeAny, {
                    name: string;
                    ref?: string | undefined;
                    input?: unknown;
                    partial?: boolean | undefined;
                }, {
                    name: string;
                    ref?: string | undefined;
                    input?: unknown;
                    partial?: boolean | undefined;
                }>;
            }, "strip", z.ZodTypeAny, {
                toolRequest: {
                    name: string;
                    ref?: string | undefined;
                    input?: unknown;
                    partial?: boolean | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }, {
                toolRequest: {
                    name: string;
                    ref?: string | undefined;
                    input?: unknown;
                    partial?: boolean | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }>, z.ZodObject<{
                text: z.ZodOptional<z.ZodNever>;
                media: z.ZodOptional<z.ZodNever>;
                toolRequest: z.ZodOptional<z.ZodNever>;
                data: z.ZodOptional<z.ZodUnknown>;
                metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                reasoning: z.ZodOptional<z.ZodNever>;
                resource: z.ZodOptional<z.ZodNever>;
            } & {
                toolResponse: z.ZodType<ToolResponse, z.ZodTypeDef, ToolResponse>;
            }, "strip", z.ZodTypeAny, {
                toolResponse: {
                    name: string;
                    ref?: string | undefined;
                    output?: unknown;
                } & {
                    content?: Part[];
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }, {
                toolResponse: {
                    name: string;
                    ref?: string | undefined;
                    output?: unknown;
                } & {
                    content?: Part[];
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }>, z.ZodObject<{
                text: z.ZodOptional<z.ZodNever>;
                media: z.ZodOptional<z.ZodNever>;
                toolRequest: z.ZodOptional<z.ZodNever>;
                toolResponse: z.ZodOptional<z.ZodNever>;
                metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                reasoning: z.ZodOptional<z.ZodNever>;
                resource: z.ZodOptional<z.ZodNever>;
            } & {
                data: z.ZodUnknown;
            }, "strip", z.ZodTypeAny, {
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }, {
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }>, z.ZodObject<{
                text: z.ZodOptional<z.ZodNever>;
                media: z.ZodOptional<z.ZodNever>;
                toolRequest: z.ZodOptional<z.ZodNever>;
                toolResponse: z.ZodOptional<z.ZodNever>;
                data: z.ZodOptional<z.ZodUnknown>;
                metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                reasoning: z.ZodOptional<z.ZodNever>;
                resource: z.ZodOptional<z.ZodNever>;
            } & {
                custom: z.ZodRecord<z.ZodString, z.ZodAny>;
            }, "strip", z.ZodTypeAny, {
                custom: Record<string, any>;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }, {
                custom: Record<string, any>;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }>, z.ZodObject<{
                text: z.ZodOptional<z.ZodNever>;
                media: z.ZodOptional<z.ZodNever>;
                toolRequest: z.ZodOptional<z.ZodNever>;
                toolResponse: z.ZodOptional<z.ZodNever>;
                data: z.ZodOptional<z.ZodUnknown>;
                metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
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            } | {
                toolResponse: {
                    name: string;
                    ref?: string | undefined;
                    output?: unknown;
                } & {
                    content?: Part[];
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom: Record<string, any>;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                reasoning: string;
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                resource?: undefined;
            } | {
                resource: {
                    uri: string;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
            })[];
            metadata?: Record<string, unknown> | undefined;
        }[] | undefined;
        artifacts?: {
            parts: ({
                text: string;
                custom?: Record<string, unknown> | undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                media: {
                    url: string;
                    contentType?: string | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolRequest: {
                    name: string;
                    ref?: string | undefined;
                    input?: unknown;
                    partial?: boolean | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolResponse: {
                    name: string;
                    ref?: string | undefined;
                    output?: unknown;
                } & {
                    content?: Part[];
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom: Record<string, any>;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                reasoning: string;
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                resource?: undefined;
            } | {
                resource: {
                    uri: string;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
            })[];
            name?: string | undefined;
            metadata?: Record<string, any> | undefined;
        }[] | undefined;
    }, {
        custom?: any;
        sessionId?: string | undefined;
        messages?: {
            role: "system" | "user" | "model" | "tool";
            content: ({
                text: string;
                custom?: Record<string, unknown> | undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                media: {
                    url: string;
                    contentType?: string | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolRequest: {
                    name: string;
                    ref?: string | undefined;
                    input?: unknown;
                    partial?: boolean | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolResponse: {
                    name: string;
                    ref?: string | undefined;
                    output?: unknown;
                } & {
                    content?: Part[];
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom: Record<string, any>;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                reasoning: string;
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                resource?: undefined;
            } | {
                resource: {
                    uri: string;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
            })[];
            metadata?: Record<string, unknown> | undefined;
        }[] | undefined;
        artifacts?: {
            parts: ({
                text: string;
                custom?: Record<string, unknown> | undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                media: {
                    url: string;
                    contentType?: string | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolRequest: {
                    name: string;
                    ref?: string | undefined;
                    input?: unknown;
                    partial?: boolean | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolResponse: {
                    name: string;
                    ref?: string | undefined;
                    output?: unknown;
                } & {
                    content?: Part[];
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom: Record<string, any>;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                reasoning: string;
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                resource?: undefined;
            } | {
                resource: {
                    uri: string;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
            })[];
            name?: string | undefined;
            metadata?: Record<string, any> | undefined;
        }[] | undefined;
    }>>;
}, "strip", z.ZodTypeAny, {
    sessionId?: string | undefined;
    snapshotId?: string | undefined;
    state?: {
        custom?: any;
        sessionId?: string | undefined;
        messages?: {
            role: "system" | "user" | "model" | "tool";
            content: ({
                text: string;
                custom?: Record<string, unknown> | undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                media: {
                    url: string;
                    contentType?: string | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolRequest: {
                    name: string;
                    ref?: string | undefined;
                    input?: unknown;
                    partial?: boolean | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolResponse: {
                    name: string;
                    ref?: string | undefined;
                    output?: unknown;
                } & {
                    content?: Part[];
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom: Record<string, any>;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                reasoning: string;
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                resource?: undefined;
            } | {
                resource: {
                    uri: string;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
            })[];
            metadata?: Record<string, unknown> | undefined;
        }[] | undefined;
        artifacts?: {
            parts: ({
                text: string;
                custom?: Record<string, unknown> | undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                media: {
                    url: string;
                    contentType?: string | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolRequest: {
                    name: string;
                    ref?: string | undefined;
                    input?: unknown;
                    partial?: boolean | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolResponse: {
                    name: string;
                    ref?: string | undefined;
                    output?: unknown;
                } & {
                    content?: Part[];
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom: Record<string, any>;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                reasoning: string;
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                resource?: undefined;
            } | {
                resource: {
                    uri: string;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
            })[];
            name?: string | undefined;
            metadata?: Record<string, any> | undefined;
        }[] | undefined;
    } | undefined;
}, {
    sessionId?: string | undefined;
    snapshotId?: string | undefined;
    state?: {
        custom?: any;
        sessionId?: string | undefined;
        messages?: {
            role: "system" | "user" | "model" | "tool";
            content: ({
                text: string;
                custom?: Record<string, unknown> | undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                media: {
                    url: string;
                    contentType?: string | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolRequest: {
                    name: string;
                    ref?: string | undefined;
                    input?: unknown;
                    partial?: boolean | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolResponse: {
                    name: string;
                    ref?: string | undefined;
                    output?: unknown;
                } & {
                    content?: Part[];
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom: Record<string, any>;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                reasoning: string;
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                resource?: undefined;
            } | {
                resource: {
                    uri: string;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
            })[];
            metadata?: Record<string, unknown> | undefined;
        }[] | undefined;
        artifacts?: {
            parts: ({
                text: string;
                custom?: Record<string, unknown> | undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                media: {
                    url: string;
                    contentType?: string | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolRequest: {
                    name: string;
                    ref?: string | undefined;
                    input?: unknown;
                    partial?: boolean | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolResponse: {
                    name: string;
                    ref?: string | undefined;
                    output?: unknown;
                } & {
                    content?: Part[];
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom: Record<string, any>;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                reasoning: string;
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                resource?: undefined;
            } | {
                resource: {
                    uri: string;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
            })[];
            name?: string | undefined;
            metadata?: Record<string, any> | undefined;
        }[] | undefined;
    } | undefined;
}>;
/**
 * Initialization options for an agent turn.
 *
 * For server-managed agents (with a `store`) provide a `snapshotId` (resume an
 * exact snapshot, required for branching/snapshotting clients) and/or a
 * `sessionId` (resume the session's latest snapshot - the simple case used by
 * `useChat`-style clients). When both are provided, `snapshotId` selects the
 * snapshot to resume and `sessionId` acts as an ownership guard: the snapshot
 * must belong to that session. For client-managed agents (no store) provide
 * the full `state`.
 *
 * Runtime variant of {@link AgentInitSchema}, generic over the custom state
 * type `S`.
 */
interface AgentInit<S = unknown> {
    snapshotId?: string;
    sessionId?: string;
    state?: SessionState<S>;
}
/**
 * Schema for final results of an agent execution.
 */
declare const AgentResultSchema: z.ZodObject<{
    message: z.ZodOptional<z.ZodObject<{
        role: z.ZodEnum<["system", "user", "model", "tool"]>;
        content: z.ZodArray<z.ZodUnion<[z.ZodObject<{
            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            text: z.ZodString;
        }, "strip", z.ZodTypeAny, {
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            media: z.ZodObject<{
                contentType: z.ZodOptional<z.ZodString>;
                url: z.ZodString;
            }, "strip", z.ZodTypeAny, {
                url: string;
                contentType?: string | undefined;
            }, {
                url: string;
                contentType?: string | undefined;
            }>;
        }, "strip", z.ZodTypeAny, {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            toolRequest: z.ZodObject<{
                ref: z.ZodOptional<z.ZodString>;
                name: z.ZodString;
                input: z.ZodOptional<z.ZodUnknown>;
                partial: z.ZodOptional<z.ZodBoolean>;
            }, "strip", z.ZodTypeAny, {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            }, {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            }>;
        }, "strip", z.ZodTypeAny, {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            toolResponse: z.ZodType<ToolResponse, z.ZodTypeDef, ToolResponse>;
        }, "strip", z.ZodTypeAny, {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            data: z.ZodUnknown;
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            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            custom: z.ZodRecord<z.ZodString, z.ZodAny>;
        }, "strip", z.ZodTypeAny, {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
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            reasoning: string;
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            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        }, {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
        } & {
            resource: z.ZodObject<{
                uri: z.ZodString;
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                uri: string;
            }, {
                uri: string;
            }>;
        }, "strip", z.ZodTypeAny, {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        }, {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
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        }>]>, "many">;
        metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
    }, "strip", z.ZodTypeAny, {
        role: "system" | "user" | "model" | "tool";
        content: ({
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            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        } | {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        })[];
        metadata?: Record<string, unknown> | undefined;
    }, {
        role: "system" | "user" | "model" | "tool";
        content: ({
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            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
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                content?: Part[];
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            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        } | {
            resource: {
                uri: string;
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            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
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        metadata?: Record<string, unknown> | undefined;
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        /** Name identifies the artifact (e.g., "generated_code.go", "diagram.png"). */
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            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
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                name: string;
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            toolRequest: z.ZodOptional<z.ZodNever>;
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        }, {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
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            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
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            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
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            reasoning?: undefined;
            resource?: undefined;
        }, {
            custom: Record<string, any>;
            text?: undefined;
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            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
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            resource: z.ZodOptional<z.ZodNever>;
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            reasoning: string;
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            media?: undefined;
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            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        }, {
            reasoning: string;
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            text?: undefined;
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            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
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            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
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                uri: z.ZodString;
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                uri: string;
            }, {
                uri: string;
            }>;
        }, "strip", z.ZodTypeAny, {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        }, {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
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        }>]>, "many">;
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    }, "strip", z.ZodTypeAny, {
        parts: ({
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            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            media: {
                url: string;
                contentType?: string | undefined;
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            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
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                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
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            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
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            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom?: Record<string, unknown> | undefined;
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            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        } | {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        })[];
        name?: string | undefined;
        metadata?: Record<string, any> | undefined;
    }, {
        parts: ({
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        } | {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        })[];
        name?: string | undefined;
        metadata?: Record<string, any> | undefined;
    }>, "many">>;
    /** The reason the whole invocation finished (e.g. `stop`, `interrupted`). */
    finishReason: z.ZodOptional<z.ZodEnum<["stop", "length", "blocked", "interrupted", "other", "unknown", "aborted", "detached", "failed"]>>;
}, "strip", z.ZodTypeAny, {
    message?: {
        role: "system" | "user" | "model" | "tool";
        content: ({
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        } | {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        })[];
        metadata?: Record<string, unknown> | undefined;
    } | undefined;
    artifacts?: {
        parts: ({
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        } | {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        })[];
        name?: string | undefined;
        metadata?: Record<string, any> | undefined;
    }[] | undefined;
    finishReason?: "length" | "aborted" | "unknown" | "failed" | "stop" | "blocked" | "interrupted" | "other" | "detached" | undefined;
}, {
    message?: {
        role: "system" | "user" | "model" | "tool";
        content: ({
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        } | {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        })[];
        metadata?: Record<string, unknown> | undefined;
    } | undefined;
    artifacts?: {
        parts: ({
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        } | {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        })[];
        name?: string | undefined;
        metadata?: Record<string, any> | undefined;
    }[] | undefined;
    finishReason?: "length" | "aborted" | "unknown" | "failed" | "stop" | "blocked" | "interrupted" | "other" | "detached" | undefined;
}>;
/**
 * Result returned upon completing an agent execution.
 */
type AgentResult = z.infer<typeof AgentResultSchema>;
/**
 * Schema for output returned at turn completion.
 */
declare const AgentOutputSchema: z.ZodObject<{
    /**
     * ID of the session this invocation belongs to, assigned by the framework
     * when the invocation starts.
     */
    sessionId: z.ZodOptional<z.ZodString>;
    snapshotId: z.ZodOptional<z.ZodString>;
    state: z.ZodOptional<z.ZodObject<{
        sessionId: z.ZodOptional<z.ZodString>;
        messages: z.ZodOptional<z.ZodArray<z.ZodObject<{
            role: z.ZodEnum<["system", "user", "model", "tool"]>;
            content: z.ZodArray<z.ZodUnion<[z.ZodObject<{
                media: z.ZodOptional<z.ZodNever>;
                toolRequest: z.ZodOptional<z.ZodNever>;
                toolResponse: z.ZodOptional<z.ZodNever>;
                data: z.ZodOptional<z.ZodUnknown>;
                metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                reasoning: z.ZodOptional<z.ZodNever>;
                resource: z.ZodOptional<z.ZodNever>;
            } & {
                text: z.ZodString;
            }, "strip", z.ZodTypeAny, {
                text: string;
                custom?: Record<string, unknown> | undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }, {
                text: string;
                custom?: Record<string, unknown> | undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }>, z.ZodObject<{
                text: z.ZodOptional<z.ZodNever>;
                toolRequest: z.ZodOptional<z.ZodNever>;
                toolResponse: z.ZodOptional<z.ZodNever>;
                data: z.ZodOptional<z.ZodUnknown>;
                metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                reasoning: z.ZodOptional<z.ZodNever>;
                resource: z.ZodOptional<z.ZodNever>;
            } & {
                media: z.ZodObject<{
                    contentType: z.ZodOptional<z.ZodString>;
                    url: z.ZodString;
                }, "strip", z.ZodTypeAny, {
                    url: string;
                    contentType?: string | undefined;
                }, {
                    url: string;
                    contentType?: string | undefined;
                }>;
            }, "strip", z.ZodTypeAny, {
                media: {
                    url: string;
                    contentType?: string | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }, {
                media: {
                    url: string;
                    contentType?: string | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }>, z.ZodObject<{
                text: z.ZodOptional<z.ZodNever>;
                media: z.ZodOptional<z.ZodNever>;
                toolResponse: z.ZodOptional<z.ZodNever>;
                data: z.ZodOptional<z.ZodUnknown>;
                metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                reasoning: z.ZodOptional<z.ZodNever>;
                resource: z.ZodOptional<z.ZodNever>;
            } & {
                toolRequest: z.ZodObject<{
                    ref: z.ZodOptional<z.ZodString>;
                    name: z.ZodString;
                    input: z.ZodOptional<z.ZodUnknown>;
                    partial: z.ZodOptional<z.ZodBoolean>;
                }, "strip", z.ZodTypeAny, {
                    name: string;
                    ref?: string | undefined;
                    input?: unknown;
                    partial?: boolean | undefined;
                }, {
                    name: string;
                    ref?: string | undefined;
                    input?: unknown;
                    partial?: boolean | undefined;
                }>;
            }, "strip", z.ZodTypeAny, {
                toolRequest: {
                    name: string;
                    ref?: string | undefined;
                    input?: unknown;
                    partial?: boolean | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }, {
                toolRequest: {
                    name: string;
                    ref?: string | undefined;
                    input?: unknown;
                    partial?: boolean | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }>, z.ZodObject<{
                text: z.ZodOptional<z.ZodNever>;
                media: z.ZodOptional<z.ZodNever>;
                toolRequest: z.ZodOptional<z.ZodNever>;
                data: z.ZodOptional<z.ZodUnknown>;
                metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                reasoning: z.ZodOptional<z.ZodNever>;
                resource: z.ZodOptional<z.ZodNever>;
            } & {
                toolResponse: z.ZodType<ToolResponse, z.ZodTypeDef, ToolResponse>;
            }, "strip", z.ZodTypeAny, {
                toolResponse: {
                    name: string;
                    ref?: string | undefined;
                    output?: unknown;
                } & {
                    content?: Part[];
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }, {
                toolResponse: {
                    name: string;
                    ref?: string | undefined;
                    output?: unknown;
                } & {
                    content?: Part[];
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }>, z.ZodObject<{
                text: z.ZodOptional<z.ZodNever>;
                media: z.ZodOptional<z.ZodNever>;
                toolRequest: z.ZodOptional<z.ZodNever>;
                toolResponse: z.ZodOptional<z.ZodNever>;
                metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                reasoning: z.ZodOptional<z.ZodNever>;
                resource: z.ZodOptional<z.ZodNever>;
            } & {
                data: z.ZodUnknown;
            }, "strip", z.ZodTypeAny, {
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }, {
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }>, z.ZodObject<{
                text: z.ZodOptional<z.ZodNever>;
                media: z.ZodOptional<z.ZodNever>;
                toolRequest: z.ZodOptional<z.ZodNever>;
                toolResponse: z.ZodOptional<z.ZodNever>;
                data: z.ZodOptional<z.ZodUnknown>;
                metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                reasoning: z.ZodOptional<z.ZodNever>;
                resource: z.ZodOptional<z.ZodNever>;
            } & {
                custom: z.ZodRecord<z.ZodString, z.ZodAny>;
            }, "strip", z.ZodTypeAny, {
                custom: Record<string, any>;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }, {
                custom: Record<string, any>;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }>, z.ZodObject<{
                text: z.ZodOptional<z.ZodNever>;
                media: z.ZodOptional<z.ZodNever>;
                toolRequest: z.ZodOptional<z.ZodNever>;
                toolResponse: z.ZodOptional<z.ZodNever>;
                data: z.ZodOptional<z.ZodUnknown>;
                metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                resource: z.ZodOptional<z.ZodNever>;
            } & {
                reasoning: z.ZodString;
            }, "strip", z.ZodTypeAny, {
                reasoning: string;
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                resource?: undefined;
            }, {
                reasoning: string;
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                resource?: undefined;
            }>, z.ZodObject<{
                text: z.ZodOptional<z.ZodNever>;
                media: z.ZodOptional<z.ZodNever>;
                toolRequest: z.ZodOptional<z.ZodNever>;
                toolResponse: z.ZodOptional<z.ZodNever>;
                data: z.ZodOptional<z.ZodUnknown>;
                metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                reasoning: z.ZodOptional<z.ZodNever>;
            } & {
                resource: z.ZodObject<{
                    uri: z.ZodString;
                }, "strip", z.ZodTypeAny, {
                    uri: string;
                }, {
                    uri: string;
                }>;
            }, "strip", z.ZodTypeAny, {
                resource: {
                    uri: string;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
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                    contentType?: string | undefined;
                };
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                toolRequest?: undefined;
                toolResponse?: undefined;
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                reasoning?: undefined;
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            } | {
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                    name: string;
                    ref?: string | undefined;
                    input?: unknown;
                    partial?: boolean | undefined;
                };
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                media?: undefined;
                toolResponse?: undefined;
                data?: unknown;
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                reasoning?: undefined;
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            } | {
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                    ref?: string | undefined;
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                toolRequest?: undefined;
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                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom: Record<string, any>;
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                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                reasoning: string;
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                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                resource?: undefined;
            } | {
                resource: {
                    uri: string;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
            })[];
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            metadata?: Record<string, any> | undefined;
        }[] | undefined;
    }, {
        custom?: any;
        sessionId?: string | undefined;
        messages?: {
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            content: ({
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                custom?: Record<string, unknown> | undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
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                reasoning?: undefined;
                resource?: undefined;
            } | {
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                    url: string;
                    contentType?: string | undefined;
                };
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                text?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
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                    name: string;
                    ref?: string | undefined;
                    input?: unknown;
                    partial?: boolean | undefined;
                };
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                media?: undefined;
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                reasoning?: undefined;
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                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
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                reasoning?: undefined;
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                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
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                reasoning?: undefined;
                resource?: undefined;
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                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
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                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
            })[];
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                custom?: Record<string, unknown> | undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                media: {
                    url: string;
                    contentType?: string | undefined;
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                text?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
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            toolRequest: z.ZodOptional<z.ZodNever>;
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            toolResponse?: undefined;
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            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
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            toolResponse?: undefined;
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        } | {
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            text?: undefined;
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            toolRequest?: undefined;
            toolResponse?: undefined;
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            reasoning?: undefined;
            resource?: undefined;
        } | {
            reasoning: string;
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            toolRequest?: undefined;
            toolResponse?: undefined;
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        } | {
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            custom?: Record<string, unknown> | undefined;
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            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            media: z.ZodObject<{
                contentType: z.ZodOptional<z.ZodString>;
                url: z.ZodString;
            }, "strip", z.ZodTypeAny, {
                url: string;
                contentType?: string | undefined;
            }, {
                url: string;
                contentType?: string | undefined;
            }>;
        }, "strip", z.ZodTypeAny, {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            toolRequest: z.ZodObject<{
                ref: z.ZodOptional<z.ZodString>;
                name: z.ZodString;
                input: z.ZodOptional<z.ZodUnknown>;
                partial: z.ZodOptional<z.ZodBoolean>;
            }, "strip", z.ZodTypeAny, {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            }, {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            }>;
        }, "strip", z.ZodTypeAny, {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            toolResponse: z.ZodType<ToolResponse, z.ZodTypeDef, ToolResponse>;
        }, "strip", z.ZodTypeAny, {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            data: z.ZodUnknown;
        }, "strip", z.ZodTypeAny, {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            custom: z.ZodRecord<z.ZodString, z.ZodAny>;
        }, "strip", z.ZodTypeAny, {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            reasoning: z.ZodString;
        }, "strip", z.ZodTypeAny, {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        }, {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
        } & {
            resource: z.ZodObject<{
                uri: z.ZodString;
            }, "strip", z.ZodTypeAny, {
                uri: string;
            }, {
                uri: string;
            }>;
        }, "strip", z.ZodTypeAny, {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        }, {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        }>]>, "many">;
        /** Metadata contains additional artifact-specific data. */
        metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodAny>>;
    }, "strip", z.ZodTypeAny, {
        parts: ({
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        } | {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        })[];
        name?: string | undefined;
        metadata?: Record<string, any> | undefined;
    }, {
        parts: ({
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        } | {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        })[];
        name?: string | undefined;
        metadata?: Record<string, any> | undefined;
    }>, "many">>;
    /** The reason the invocation finished (e.g. `stop`, `interrupted`). */
    finishReason: z.ZodOptional<z.ZodEnum<["stop", "length", "blocked", "interrupted", "other", "unknown", "aborted", "detached", "failed"]>>;
    /**
     * Present when `finishReason` is `failed`. Carries the original error
     * details (RuntimeError shape; the runtime resolves gracefully instead of
     * throwing). The accompanying `state`/`snapshotId` hold the last-good state -
     * the state the failed turn started with.
     */
    error: z.ZodOptional<z.ZodObject<{
        /** Canonical status name (e.g. `INTERNAL`, `FAILED_PRECONDITION`). */
        status: z.ZodOptional<z.ZodString>;
        /** Human-readable error message. */
        message: z.ZodString;
        /** Optional structured details describing the failure. */
        details: z.ZodOptional<z.ZodAny>;
    }, "strip", z.ZodTypeAny, {
        message: string;
        status?: string | undefined;
        details?: any;
    }, {
        message: string;
        status?: string | undefined;
        details?: any;
    }>>;
}, "strip", z.ZodTypeAny, {
    message?: {
        role: "system" | "user" | "model" | "tool";
        content: ({
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        } | {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        })[];
        metadata?: Record<string, unknown> | undefined;
    } | undefined;
    sessionId?: string | undefined;
    artifacts?: {
        parts: ({
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        } | {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        })[];
        name?: string | undefined;
        metadata?: Record<string, any> | undefined;
    }[] | undefined;
    snapshotId?: string | undefined;
    state?: {
        custom?: any;
        sessionId?: string | undefined;
        messages?: {
            role: "system" | "user" | "model" | "tool";
            content: ({
                text: string;
                custom?: Record<string, unknown> | undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                media: {
                    url: string;
                    contentType?: string | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolRequest: {
                    name: string;
                    ref?: string | undefined;
                    input?: unknown;
                    partial?: boolean | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolResponse: {
                    name: string;
                    ref?: string | undefined;
                    output?: unknown;
                } & {
                    content?: Part[];
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom: Record<string, any>;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                reasoning: string;
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                resource?: undefined;
            } | {
                resource: {
                    uri: string;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
            })[];
            metadata?: Record<string, unknown> | undefined;
        }[] | undefined;
        artifacts?: {
            parts: ({
                text: string;
                custom?: Record<string, unknown> | undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                media: {
                    url: string;
                    contentType?: string | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolRequest: {
                    name: string;
                    ref?: string | undefined;
                    input?: unknown;
                    partial?: boolean | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolResponse: {
                    name: string;
                    ref?: string | undefined;
                    output?: unknown;
                } & {
                    content?: Part[];
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom: Record<string, any>;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                reasoning: string;
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                resource?: undefined;
            } | {
                resource: {
                    uri: string;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
            })[];
            name?: string | undefined;
            metadata?: Record<string, any> | undefined;
        }[] | undefined;
    } | undefined;
    finishReason?: "length" | "aborted" | "unknown" | "failed" | "stop" | "blocked" | "interrupted" | "other" | "detached" | undefined;
    error?: {
        message: string;
        status?: string | undefined;
        details?: any;
    } | undefined;
}, {
    message?: {
        role: "system" | "user" | "model" | "tool";
        content: ({
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        } | {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        })[];
        metadata?: Record<string, unknown> | undefined;
    } | undefined;
    sessionId?: string | undefined;
    artifacts?: {
        parts: ({
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        } | {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        })[];
        name?: string | undefined;
        metadata?: Record<string, any> | undefined;
    }[] | undefined;
    snapshotId?: string | undefined;
    state?: {
        custom?: any;
        sessionId?: string | undefined;
        messages?: {
            role: "system" | "user" | "model" | "tool";
            content: ({
                text: string;
                custom?: Record<string, unknown> | undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                media: {
                    url: string;
                    contentType?: string | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolRequest: {
                    name: string;
                    ref?: string | undefined;
                    input?: unknown;
                    partial?: boolean | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolResponse: {
                    name: string;
                    ref?: string | undefined;
                    output?: unknown;
                } & {
                    content?: Part[];
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom: Record<string, any>;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                reasoning: string;
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                resource?: undefined;
            } | {
                resource: {
                    uri: string;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
            })[];
            metadata?: Record<string, unknown> | undefined;
        }[] | undefined;
        artifacts?: {
            parts: ({
                text: string;
                custom?: Record<string, unknown> | undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                media: {
                    url: string;
                    contentType?: string | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolRequest: {
                    name: string;
                    ref?: string | undefined;
                    input?: unknown;
                    partial?: boolean | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolResponse: {
                    name: string;
                    ref?: string | undefined;
                    output?: unknown;
                } & {
                    content?: Part[];
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom: Record<string, any>;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                reasoning: string;
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                resource?: undefined;
            } | {
                resource: {
                    uri: string;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
            })[];
            name?: string | undefined;
            metadata?: Record<string, any> | undefined;
        }[] | undefined;
    } | undefined;
    finishReason?: "length" | "aborted" | "unknown" | "failed" | "stop" | "blocked" | "interrupted" | "other" | "detached" | undefined;
    error?: {
        message: string;
        status?: string | undefined;
        details?: any;
    } | undefined;
}>;
/**
 * Output returned at turn completion.
 *
 * Runtime variant of {@link AgentOutputSchema}, generic over the custom state
 * type `S`.
 */
interface AgentOutput<S = unknown> {
    sessionId?: string;
    artifacts?: Artifact[];
    message?: MessageData;
    snapshotId?: string;
    state?: SessionState<S>;
    finishReason?: AgentFinishReason;
    /**
     * Present when `finishReason` is `failed`. Carries the original error
     * details (RuntimeError shape); `state`/`snapshotId` hold the last-good state.
     */
    error?: RuntimeError;
}
/**
 * Schema identifying a turn termination event.
 */
declare const TurnEndSchema: z.ZodObject<{
    snapshotId: z.ZodOptional<z.ZodString>;
    /** The reason this turn finished (e.g. `stop`, `interrupted`). */
    finishReason: z.ZodOptional<z.ZodEnum<["stop", "length", "blocked", "interrupted", "other", "unknown", "aborted", "detached", "failed"]>>;
}, "strip", z.ZodTypeAny, {
    snapshotId?: string | undefined;
    finishReason?: "length" | "aborted" | "unknown" | "failed" | "stop" | "blocked" | "interrupted" | "other" | "detached" | undefined;
}, {
    snapshotId?: string | undefined;
    finishReason?: "length" | "aborted" | "unknown" | "failed" | "stop" | "blocked" | "interrupted" | "other" | "detached" | undefined;
}>;
/**
 * Identifies a turn termination event.
 */
type TurnEnd = z.infer<typeof TurnEndSchema>;
/**
 * Schema for the operation kind of a JSON Patch operation (RFC 6902).
 */
declare const JsonPatchOpSchema: z.ZodEnum<["add", "remove", "replace", "move", "copy", "test"]>;
/**
 * Operation kind of a JSON Patch (RFC 6902) operation.
 */
type JsonPatchOp = z.infer<typeof JsonPatchOpSchema>;
/**
 * Schema for a single RFC 6902 (JSON Patch) operation.
 */
declare const JsonPatchOperationSchema: z.ZodObject<{
    op: z.ZodEnum<["add", "remove", "replace", "move", "copy", "test"]>;
    /** A JSON Pointer (RFC 6901) to the target location, e.g. `"/agentStatus"`. */
    path: z.ZodString;
    /** Source pointer; required for `move` and `copy`. */
    from: z.ZodOptional<z.ZodString>;
    /** New value; required for `add`, `replace`, and `test`. */
    value: z.ZodOptional<z.ZodAny>;
}, "strip", z.ZodTypeAny, {
    path: string;
    op: "add" | "remove" | "replace" | "move" | "copy" | "test";
    value?: any;
    from?: string | undefined;
}, {
    path: string;
    op: "add" | "remove" | "replace" | "move" | "copy" | "test";
    value?: any;
    from?: string | undefined;
}>;
/**
 * Schema for an RFC 6902 JSON Patch: an ordered list of operations.
 */
declare const JsonPatchSchema: z.ZodArray<z.ZodObject<{
    op: z.ZodEnum<["add", "remove", "replace", "move", "copy", "test"]>;
    /** A JSON Pointer (RFC 6901) to the target location, e.g. `"/agentStatus"`. */
    path: z.ZodString;
    /** Source pointer; required for `move` and `copy`. */
    from: z.ZodOptional<z.ZodString>;
    /** New value; required for `add`, `replace`, and `test`. */
    value: z.ZodOptional<z.ZodAny>;
}, "strip", z.ZodTypeAny, {
    path: string;
    op: "add" | "remove" | "replace" | "move" | "copy" | "test";
    value?: any;
    from?: string | undefined;
}, {
    path: string;
    op: "add" | "remove" | "replace" | "move" | "copy" | "test";
    value?: any;
    from?: string | undefined;
}>, "many">;
/**
 * Schema for stream chunks emitted during agent execution.
 */
declare const AgentStreamChunkSchema: z.ZodObject<{
    modelChunk: z.ZodOptional<z.ZodObject<{
        role: z.ZodOptional<z.ZodEnum<["system", "user", "model", "tool"]>>;
        index: z.ZodOptional<z.ZodNumber>;
        content: z.ZodArray<z.ZodUnion<[z.ZodObject<{
            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            text: z.ZodString;
        }, "strip", z.ZodTypeAny, {
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            media: z.ZodObject<{
                contentType: z.ZodOptional<z.ZodString>;
                url: z.ZodString;
            }, "strip", z.ZodTypeAny, {
                url: string;
                contentType?: string | undefined;
            }, {
                url: string;
                contentType?: string | undefined;
            }>;
        }, "strip", z.ZodTypeAny, {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            toolRequest: z.ZodObject<{
                ref: z.ZodOptional<z.ZodString>;
                name: z.ZodString;
                input: z.ZodOptional<z.ZodUnknown>;
                partial: z.ZodOptional<z.ZodBoolean>;
            }, "strip", z.ZodTypeAny, {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            }, {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            }>;
        }, "strip", z.ZodTypeAny, {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            toolResponse: z.ZodType<ToolResponse, z.ZodTypeDef, ToolResponse>;
        }, "strip", z.ZodTypeAny, {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            data: z.ZodUnknown;
        }, "strip", z.ZodTypeAny, {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            custom: z.ZodRecord<z.ZodString, z.ZodAny>;
        }, "strip", z.ZodTypeAny, {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            reasoning: z.ZodString;
        }, "strip", z.ZodTypeAny, {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        }, {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
        } & {
            resource: z.ZodObject<{
                uri: z.ZodString;
            }, "strip", z.ZodTypeAny, {
                uri: string;
            }, {
                uri: string;
            }>;
        }, "strip", z.ZodTypeAny, {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        }, {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        }>]>, "many">;
        custom: z.ZodOptional<z.ZodUnknown>;
        aggregated: z.ZodOptional<z.ZodBoolean>;
    }, "strip", z.ZodTypeAny, {
        content: ({
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        } | {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        })[];
        custom?: unknown;
        role?: "system" | "user" | "model" | "tool" | undefined;
        index?: number | undefined;
        aggregated?: boolean | undefined;
    }, {
        content: ({
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        } | {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        })[];
        custom?: unknown;
        role?: "system" | "user" | "model" | "tool" | undefined;
        index?: number | undefined;
        aggregated?: boolean | undefined;
    }>>;
    /**
     * An RFC 6902 JSON Patch describing a delta applied to the session's
     * `custom` state. The runtime auto-emits these whenever custom state is
     * mutated during a turn; clients apply them to keep their tracked custom
     * state live mid-stream.
     */
    customPatch: z.ZodOptional<z.ZodArray<z.ZodObject<{
        op: z.ZodEnum<["add", "remove", "replace", "move", "copy", "test"]>;
        /** A JSON Pointer (RFC 6901) to the target location, e.g. `"/agentStatus"`. */
        path: z.ZodString;
        /** Source pointer; required for `move` and `copy`. */
        from: z.ZodOptional<z.ZodString>;
        /** New value; required for `add`, `replace`, and `test`. */
        value: z.ZodOptional<z.ZodAny>;
    }, "strip", z.ZodTypeAny, {
        path: string;
        op: "add" | "remove" | "replace" | "move" | "copy" | "test";
        value?: any;
        from?: string | undefined;
    }, {
        path: string;
        op: "add" | "remove" | "replace" | "move" | "copy" | "test";
        value?: any;
        from?: string | undefined;
    }>, "many">>;
    artifact: z.ZodOptional<z.ZodObject<{
        /** Name identifies the artifact (e.g., "generated_code.go", "diagram.png"). */
        name: z.ZodOptional<z.ZodString>;
        /** Parts contains the artifact content (text, media, etc.). */
        parts: z.ZodArray<z.ZodUnion<[z.ZodObject<{
            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            text: z.ZodString;
        }, "strip", z.ZodTypeAny, {
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            media: z.ZodObject<{
                contentType: z.ZodOptional<z.ZodString>;
                url: z.ZodString;
            }, "strip", z.ZodTypeAny, {
                url: string;
                contentType?: string | undefined;
            }, {
                url: string;
                contentType?: string | undefined;
            }>;
        }, "strip", z.ZodTypeAny, {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            toolRequest: z.ZodObject<{
                ref: z.ZodOptional<z.ZodString>;
                name: z.ZodString;
                input: z.ZodOptional<z.ZodUnknown>;
                partial: z.ZodOptional<z.ZodBoolean>;
            }, "strip", z.ZodTypeAny, {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            }, {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            }>;
        }, "strip", z.ZodTypeAny, {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            toolResponse: z.ZodType<ToolResponse, z.ZodTypeDef, ToolResponse>;
        }, "strip", z.ZodTypeAny, {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            data: z.ZodUnknown;
        }, "strip", z.ZodTypeAny, {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            custom: z.ZodRecord<z.ZodString, z.ZodAny>;
        }, "strip", z.ZodTypeAny, {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }, {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            resource: z.ZodOptional<z.ZodNever>;
        } & {
            reasoning: z.ZodString;
        }, "strip", z.ZodTypeAny, {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        }, {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        }>, z.ZodObject<{
            text: z.ZodOptional<z.ZodNever>;
            media: z.ZodOptional<z.ZodNever>;
            toolRequest: z.ZodOptional<z.ZodNever>;
            toolResponse: z.ZodOptional<z.ZodNever>;
            data: z.ZodOptional<z.ZodUnknown>;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
            reasoning: z.ZodOptional<z.ZodNever>;
        } & {
            resource: z.ZodObject<{
                uri: z.ZodString;
            }, "strip", z.ZodTypeAny, {
                uri: string;
            }, {
                uri: string;
            }>;
        }, "strip", z.ZodTypeAny, {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        }, {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        }>]>, "many">;
        /** Metadata contains additional artifact-specific data. */
        metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodAny>>;
    }, "strip", z.ZodTypeAny, {
        parts: ({
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        } | {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        })[];
        name?: string | undefined;
        metadata?: Record<string, any> | undefined;
    }, {
        parts: ({
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        } | {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        })[];
        name?: string | undefined;
        metadata?: Record<string, any> | undefined;
    }>>;
    turnEnd: z.ZodOptional<z.ZodObject<{
        snapshotId: z.ZodOptional<z.ZodString>;
        /** The reason this turn finished (e.g. `stop`, `interrupted`). */
        finishReason: z.ZodOptional<z.ZodEnum<["stop", "length", "blocked", "interrupted", "other", "unknown", "aborted", "detached", "failed"]>>;
    }, "strip", z.ZodTypeAny, {
        snapshotId?: string | undefined;
        finishReason?: "length" | "aborted" | "unknown" | "failed" | "stop" | "blocked" | "interrupted" | "other" | "detached" | undefined;
    }, {
        snapshotId?: string | undefined;
        finishReason?: "length" | "aborted" | "unknown" | "failed" | "stop" | "blocked" | "interrupted" | "other" | "detached" | undefined;
    }>>;
}, "strip", z.ZodTypeAny, {
    modelChunk?: {
        content: ({
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        } | {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        })[];
        custom?: unknown;
        role?: "system" | "user" | "model" | "tool" | undefined;
        index?: number | undefined;
        aggregated?: boolean | undefined;
    } | undefined;
    customPatch?: {
        path: string;
        op: "add" | "remove" | "replace" | "move" | "copy" | "test";
        value?: any;
        from?: string | undefined;
    }[] | undefined;
    artifact?: {
        parts: ({
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        } | {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        })[];
        name?: string | undefined;
        metadata?: Record<string, any> | undefined;
    } | undefined;
    turnEnd?: {
        snapshotId?: string | undefined;
        finishReason?: "length" | "aborted" | "unknown" | "failed" | "stop" | "blocked" | "interrupted" | "other" | "detached" | undefined;
    } | undefined;
}, {
    modelChunk?: {
        content: ({
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        } | {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        })[];
        custom?: unknown;
        role?: "system" | "user" | "model" | "tool" | undefined;
        index?: number | undefined;
        aggregated?: boolean | undefined;
    } | undefined;
    customPatch?: {
        path: string;
        op: "add" | "remove" | "replace" | "move" | "copy" | "test";
        value?: any;
        from?: string | undefined;
    }[] | undefined;
    artifact?: {
        parts: ({
            text: string;
            custom?: Record<string, unknown> | undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            media: {
                url: string;
                contentType?: string | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolRequest: {
                name: string;
                ref?: string | undefined;
                input?: unknown;
                partial?: boolean | undefined;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            toolResponse: {
                name: string;
                ref?: string | undefined;
                output?: unknown;
            } & {
                content?: Part[];
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            custom: Record<string, any>;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
            resource?: undefined;
        } | {
            reasoning: string;
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            resource?: undefined;
        } | {
            resource: {
                uri: string;
            };
            custom?: Record<string, unknown> | undefined;
            text?: undefined;
            media?: undefined;
            toolRequest?: undefined;
            toolResponse?: undefined;
            data?: unknown;
            metadata?: Record<string, unknown> | undefined;
            reasoning?: undefined;
        })[];
        name?: string | undefined;
        metadata?: Record<string, any> | undefined;
    } | undefined;
    turnEnd?: {
        snapshotId?: string | undefined;
        finishReason?: "length" | "aborted" | "unknown" | "failed" | "stop" | "blocked" | "interrupted" | "other" | "detached" | undefined;
    } | undefined;
}>;
/**
 * Streamed chunk emitted during agent execution.
 */
type AgentStreamChunk = z.infer<typeof AgentStreamChunkSchema>;
/**
 * Zod schema mirroring {@link SessionSnapshot}. Used as the output schema for
 * the `getSnapshot` companion action so the snapshot shape is discoverable in
 * the registry (rather than an opaque `z.any()`).
 */
declare const SessionSnapshotSchema: z.ZodObject<{
    snapshotId: z.ZodString;
    sessionId: z.ZodOptional<z.ZodString>;
    parentId: z.ZodOptional<z.ZodString>;
    createdAt: z.ZodString;
    updatedAt: z.ZodOptional<z.ZodString>;
    heartbeatAt: z.ZodOptional<z.ZodString>;
    status: z.ZodOptional<z.ZodEnum<["pending", "completed", "aborted", "failed", "expired"]>>;
    finishReason: z.ZodOptional<z.ZodEnum<["stop", "length", "blocked", "interrupted", "other", "unknown", "aborted", "detached", "failed"]>>;
    error: z.ZodOptional<z.ZodObject<{
        /** Canonical status name (e.g. `INTERNAL`, `FAILED_PRECONDITION`). */
        status: z.ZodOptional<z.ZodString>;
        /** Human-readable error message. */
        message: z.ZodString;
        /** Optional structured details describing the failure. */
        details: z.ZodOptional<z.ZodAny>;
    }, "strip", z.ZodTypeAny, {
        message: string;
        status?: string | undefined;
        details?: any;
    }, {
        message: string;
        status?: string | undefined;
        details?: any;
    }>>;
    state: z.ZodOptional<z.ZodObject<{
        sessionId: z.ZodOptional<z.ZodString>;
        messages: z.ZodOptional<z.ZodArray<z.ZodObject<{
            role: z.ZodEnum<["system", "user", "model", "tool"]>;
            content: z.ZodArray<z.ZodUnion<[z.ZodObject<{
                media: z.ZodOptional<z.ZodNever>;
                toolRequest: z.ZodOptional<z.ZodNever>;
                toolResponse: z.ZodOptional<z.ZodNever>;
                data: z.ZodOptional<z.ZodUnknown>;
                metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                reasoning: z.ZodOptional<z.ZodNever>;
                resource: z.ZodOptional<z.ZodNever>;
            } & {
                text: z.ZodString;
            }, "strip", z.ZodTypeAny, {
                text: string;
                custom?: Record<string, unknown> | undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }, {
                text: string;
                custom?: Record<string, unknown> | undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }>, z.ZodObject<{
                text: z.ZodOptional<z.ZodNever>;
                toolRequest: z.ZodOptional<z.ZodNever>;
                toolResponse: z.ZodOptional<z.ZodNever>;
                data: z.ZodOptional<z.ZodUnknown>;
                metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                reasoning: z.ZodOptional<z.ZodNever>;
                resource: z.ZodOptional<z.ZodNever>;
            } & {
                media: z.ZodObject<{
                    contentType: z.ZodOptional<z.ZodString>;
                    url: z.ZodString;
                }, "strip", z.ZodTypeAny, {
                    url: string;
                    contentType?: string | undefined;
                }, {
                    url: string;
                    contentType?: string | undefined;
                }>;
            }, "strip", z.ZodTypeAny, {
                media: {
                    url: string;
                    contentType?: string | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }, {
                media: {
                    url: string;
                    contentType?: string | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }>, z.ZodObject<{
                text: z.ZodOptional<z.ZodNever>;
                media: z.ZodOptional<z.ZodNever>;
                toolResponse: z.ZodOptional<z.ZodNever>;
                data: z.ZodOptional<z.ZodUnknown>;
                metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                reasoning: z.ZodOptional<z.ZodNever>;
                resource: z.ZodOptional<z.ZodNever>;
            } & {
                toolRequest: z.ZodObject<{
                    ref: z.ZodOptional<z.ZodString>;
                    name: z.ZodString;
                    input: z.ZodOptional<z.ZodUnknown>;
                    partial: z.ZodOptional<z.ZodBoolean>;
                }, "strip", z.ZodTypeAny, {
                    name: string;
                    ref?: string | undefined;
                    input?: unknown;
                    partial?: boolean | undefined;
                }, {
                    name: string;
                    ref?: string | undefined;
                    input?: unknown;
                    partial?: boolean | undefined;
                }>;
            }, "strip", z.ZodTypeAny, {
                toolRequest: {
                    name: string;
                    ref?: string | undefined;
                    input?: unknown;
                    partial?: boolean | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }, {
                toolRequest: {
                    name: string;
                    ref?: string | undefined;
                    input?: unknown;
                    partial?: boolean | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }>, z.ZodObject<{
                text: z.ZodOptional<z.ZodNever>;
                media: z.ZodOptional<z.ZodNever>;
                toolRequest: z.ZodOptional<z.ZodNever>;
                data: z.ZodOptional<z.ZodUnknown>;
                metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                reasoning: z.ZodOptional<z.ZodNever>;
                resource: z.ZodOptional<z.ZodNever>;
            } & {
                toolResponse: z.ZodType<ToolResponse, z.ZodTypeDef, ToolResponse>;
            }, "strip", z.ZodTypeAny, {
                toolResponse: {
                    name: string;
                    ref?: string | undefined;
                    output?: unknown;
                } & {
                    content?: Part[];
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }, {
                toolResponse: {
                    name: string;
                    ref?: string | undefined;
                    output?: unknown;
                } & {
                    content?: Part[];
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }>, z.ZodObject<{
                text: z.ZodOptional<z.ZodNever>;
                media: z.ZodOptional<z.ZodNever>;
                toolRequest: z.ZodOptional<z.ZodNever>;
                toolResponse: z.ZodOptional<z.ZodNever>;
                metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                reasoning: z.ZodOptional<z.ZodNever>;
                resource: z.ZodOptional<z.ZodNever>;
            } & {
                data: z.ZodUnknown;
            }, "strip", z.ZodTypeAny, {
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }, {
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }>, z.ZodObject<{
                text: z.ZodOptional<z.ZodNever>;
                media: z.ZodOptional<z.ZodNever>;
                toolRequest: z.ZodOptional<z.ZodNever>;
                toolResponse: z.ZodOptional<z.ZodNever>;
                data: z.ZodOptional<z.ZodUnknown>;
                metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                reasoning: z.ZodOptional<z.ZodNever>;
                resource: z.ZodOptional<z.ZodNever>;
            } & {
                custom: z.ZodRecord<z.ZodString, z.ZodAny>;
            }, "strip", z.ZodTypeAny, {
                custom: Record<string, any>;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }, {
                custom: Record<string, any>;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            }>, z.ZodObject<{
                text: z.ZodOptional<z.ZodNever>;
                media: z.ZodOptional<z.ZodNever>;
                toolRequest: z.ZodOptional<z.ZodNever>;
                toolResponse: z.ZodOptional<z.ZodNever>;
                data: z.ZodOptional<z.ZodUnknown>;
                metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                resource: z.ZodOptional<z.ZodNever>;
            } & {
                reasoning: z.ZodString;
            }, "strip", z.ZodTypeAny, {
                reasoning: string;
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                resource?: undefined;
            }, {
                reasoning: string;
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                resource?: undefined;
            }>, z.ZodObject<{
                text: z.ZodOptional<z.ZodNever>;
                media: z.ZodOptional<z.ZodNever>;
                toolRequest: z.ZodOptional<z.ZodNever>;
                toolResponse: z.ZodOptional<z.ZodNever>;
                data: z.ZodOptional<z.ZodUnknown>;
                metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
                reasoning: z.ZodOptional<z.ZodNever>;
            } & {
                resource: z.ZodObject<{
                    uri: z.ZodString;
                }, "strip", z.ZodTypeAny, {
                    uri: string;
                }, {
                    uri: string;
                }>;
            }, "strip", z.ZodTypeAny, {
                resource: {
                    uri: string;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
            }, {
                resource: {
                    uri: string;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
            }>]>, "many">;
            metadata: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodUnknown>>;
        }, "strip", z.ZodTypeAny, {
            role: "system" | "user" | "model" | "tool";
            content: ({
                text: string;
                custom?: Record<string, unknown> | undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
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                    content?: Part[];
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom: Record<string, any>;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                reasoning: string;
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                resource?: undefined;
            } | {
                resource: {
                    uri: string;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
            })[];
            name?: string | undefined;
            metadata?: Record<string, any> | undefined;
        }[] | undefined;
    }, {
        custom?: any;
        sessionId?: string | undefined;
        messages?: {
            role: "system" | "user" | "model" | "tool";
            content: ({
                text: string;
                custom?: Record<string, unknown> | undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                media: {
                    url: string;
                    contentType?: string | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolRequest: {
                    name: string;
                    ref?: string | undefined;
                    input?: unknown;
                    partial?: boolean | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolResponse: {
                    name: string;
                    ref?: string | undefined;
                    output?: unknown;
                } & {
                    content?: Part[];
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom: Record<string, any>;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                reasoning: string;
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                resource?: undefined;
            } | {
                resource: {
                    uri: string;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
            })[];
            metadata?: Record<string, unknown> | undefined;
        }[] | undefined;
        artifacts?: {
            parts: ({
                text: string;
                custom?: Record<string, unknown> | undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                media: {
                    url: string;
                    contentType?: string | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolRequest: {
                    name: string;
                    ref?: string | undefined;
                    input?: unknown;
                    partial?: boolean | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolResponse: {
                    name: string;
                    ref?: string | undefined;
                    output?: unknown;
                } & {
                    content?: Part[];
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom: Record<string, any>;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                reasoning: string;
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                resource?: undefined;
            } | {
                resource: {
                    uri: string;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
            })[];
            name?: string | undefined;
            metadata?: Record<string, any> | undefined;
        }[] | undefined;
    }>>;
}, "strip", z.ZodTypeAny, {
    snapshotId: string;
    createdAt: string;
    status?: "aborted" | "pending" | "completed" | "failed" | "expired" | undefined;
    sessionId?: string | undefined;
    state?: {
        custom?: any;
        sessionId?: string | undefined;
        messages?: {
            role: "system" | "user" | "model" | "tool";
            content: ({
                text: string;
                custom?: Record<string, unknown> | undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                media: {
                    url: string;
                    contentType?: string | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolRequest: {
                    name: string;
                    ref?: string | undefined;
                    input?: unknown;
                    partial?: boolean | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolResponse: {
                    name: string;
                    ref?: string | undefined;
                    output?: unknown;
                } & {
                    content?: Part[];
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom: Record<string, any>;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                reasoning: string;
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                resource?: undefined;
            } | {
                resource: {
                    uri: string;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
            })[];
            metadata?: Record<string, unknown> | undefined;
        }[] | undefined;
        artifacts?: {
            parts: ({
                text: string;
                custom?: Record<string, unknown> | undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                media: {
                    url: string;
                    contentType?: string | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolRequest: {
                    name: string;
                    ref?: string | undefined;
                    input?: unknown;
                    partial?: boolean | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolResponse: {
                    name: string;
                    ref?: string | undefined;
                    output?: unknown;
                } & {
                    content?: Part[];
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom: Record<string, any>;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                reasoning: string;
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                resource?: undefined;
            } | {
                resource: {
                    uri: string;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
            })[];
            name?: string | undefined;
            metadata?: Record<string, any> | undefined;
        }[] | undefined;
    } | undefined;
    finishReason?: "length" | "aborted" | "unknown" | "failed" | "stop" | "blocked" | "interrupted" | "other" | "detached" | undefined;
    error?: {
        message: string;
        status?: string | undefined;
        details?: any;
    } | undefined;
    parentId?: string | undefined;
    updatedAt?: string | undefined;
    heartbeatAt?: string | undefined;
}, {
    snapshotId: string;
    createdAt: string;
    status?: "aborted" | "pending" | "completed" | "failed" | "expired" | undefined;
    sessionId?: string | undefined;
    state?: {
        custom?: any;
        sessionId?: string | undefined;
        messages?: {
            role: "system" | "user" | "model" | "tool";
            content: ({
                text: string;
                custom?: Record<string, unknown> | undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                media: {
                    url: string;
                    contentType?: string | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolRequest: {
                    name: string;
                    ref?: string | undefined;
                    input?: unknown;
                    partial?: boolean | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolResponse: {
                    name: string;
                    ref?: string | undefined;
                    output?: unknown;
                } & {
                    content?: Part[];
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom: Record<string, any>;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                reasoning: string;
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                resource?: undefined;
            } | {
                resource: {
                    uri: string;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
            })[];
            metadata?: Record<string, unknown> | undefined;
        }[] | undefined;
        artifacts?: {
            parts: ({
                text: string;
                custom?: Record<string, unknown> | undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                media: {
                    url: string;
                    contentType?: string | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolRequest: {
                    name: string;
                    ref?: string | undefined;
                    input?: unknown;
                    partial?: boolean | undefined;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                toolResponse: {
                    name: string;
                    ref?: string | undefined;
                    output?: unknown;
                } & {
                    content?: Part[];
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                custom: Record<string, any>;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
                resource?: undefined;
            } | {
                reasoning: string;
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                resource?: undefined;
            } | {
                resource: {
                    uri: string;
                };
                custom?: Record<string, unknown> | undefined;
                text?: undefined;
                media?: undefined;
                toolRequest?: undefined;
                toolResponse?: undefined;
                data?: unknown;
                metadata?: Record<string, unknown> | undefined;
                reasoning?: undefined;
            })[];
            name?: string | undefined;
            metadata?: Record<string, any> | undefined;
        }[] | undefined;
    } | undefined;
    finishReason?: "length" | "aborted" | "unknown" | "failed" | "stop" | "blocked" | "interrupted" | "other" | "detached" | undefined;
    error?: {
        message: string;
        status?: string | undefined;
        details?: any;
    } | undefined;
    parentId?: string | undefined;
    updatedAt?: string | undefined;
    heartbeatAt?: string | undefined;
}>;
/**
 * Saved snapshot of a session's state at a given event point.
 *
 * Runtime variant of {@link SessionSnapshotSchema}, generic over the custom
 * state type `S`.
 */
interface SessionSnapshot<S = unknown> {
    snapshotId: string;
    /**
     * ID of the session this snapshot belongs to. Assigned by the agent
     * framework when the conversation's first invocation starts and stamped on
     * every later snapshot in the chain, including across resumed invocations.
     * Stores preserve it across rewrites; rows written without one (data from
     * before session IDs existed) belong to no session.
     */
    sessionId?: string;
    /**
     * ID of the previous snapshot in this timeline. Informational lineage (for
     * debugging and UI history trees); plays no part in resolving a session's
     * latest snapshot.
     */
    parentId?: string;
    createdAt: string;
    /** When the snapshot was last written (RFC 3339). Equals `createdAt` until rewritten. */
    updatedAt?: string;
    /**
     * Heartbeat timestamp (RFC 3339) refreshed periodically while a detached
     * (background) turn is in flight. Used to detect a dead background worker:
     * if a `pending` snapshot's heartbeat goes stale (older than the configured
     * timeout), reads surface its status as `expired` (the dead process can no
     * longer persist a terminal status itself).
     */
    heartbeatAt?: string;
    status?: SnapshotStatus;
    /**
     * Semantic reason the turn/invocation finished (e.g. `interrupted`,
     * `stop`). Distinct from `status`, which tracks the persistence lifecycle.
     */
    finishReason?: AgentFinishReason;
    /**
     * Structured failure information (RuntimeError shape). `status` is the
     * canonical error category (e.g. `INTERNAL`, `FAILED_PRECONDITION`).
     */
    error?: RuntimeError;
    /**
     * Conversation state captured at this point. Empty on a pending snapshot
     * (the live state is not yet committed); populated on terminal snapshots
     * with the cumulative final state.
     */
    state?: SessionState<S>;
}
/**
 * Schema for the input of an agent's `getSnapshot` companion action. Provide
 * exactly one of `snapshotId` or `sessionId`.
 */
declare const GetSnapshotRequestSchema: z.ZodObject<{
    snapshotId: z.ZodOptional<z.ZodString>;
    sessionId: z.ZodOptional<z.ZodString>;
}, "strip", z.ZodTypeAny, {
    sessionId?: string | undefined;
    snapshotId?: string | undefined;
}, {
    sessionId?: string | undefined;
    snapshotId?: string | undefined;
}>;
/**
 * Input identifying which snapshot to fetch.
 */
type GetSnapshotRequest = z.infer<typeof GetSnapshotRequestSchema>;
/**
 * Schema for the input of the `abort` companion action.
 */
declare const AgentAbortRequestSchema: z.ZodObject<{
    snapshotId: z.ZodString;
}, "strip", z.ZodTypeAny, {
    snapshotId: string;
}, {
    snapshotId: string;
}>;
/**
 * Input identifying which snapshot's invocation to abort.
 */
type AgentAbortRequest = z.infer<typeof AgentAbortRequestSchema>;
/**
 * Schema for the output of the `abort` companion action.
 */
declare const AgentAbortResponseSchema: z.ZodObject<{
    snapshotId: z.ZodString;
    status: z.ZodOptional<z.ZodEnum<["pending", "completed", "aborted", "failed", "expired"]>>;
}, "strip", z.ZodTypeAny, {
    snapshotId: string;
    status?: "aborted" | "pending" | "completed" | "failed" | "expired" | undefined;
}, {
    snapshotId: string;
    status?: "aborted" | "pending" | "completed" | "failed" | "expired" | undefined;
}>;
/**
 * Result of an abort attempt.
 */
type AgentAbortResponse = z.infer<typeof AgentAbortResponseSchema>;
/**
 * Schema for who owns session state for an agent.
 *
 * - `server`: a session store is configured and snapshots are persisted
 *   server-side.
 * - `client`: no store; state flows through the agent's invocation init and
 *   output payloads.
 */
declare const AgentStateManagementSchema: z.ZodEnum<["server", "client"]>;
/**
 * Who owns session state for an agent.
 */
type AgentStateManagement = z.infer<typeof AgentStateManagementSchema>;
/**
 * Schema for the agent capability metadata placed under `metadata.agent` on an
 * agent's action descriptor. Lets the Dev UI and other reflective callers
 * render the right surface (e.g. hide the Abort button when the configured
 * store doesn't support it) without round-tripping through the reflection API.
 */
declare const AgentMetadataSchema: z.ZodObject<{
    /** Who owns session state for this agent. */
    stateManagement: z.ZodEnum<["server", "client"]>;
    /**
     * Whether the agent's invocations can be aborted. True only when the
     * configured store implements the abort lifecycle.
     */
    abortable: z.ZodBoolean;
    /**
     * JSON schema for the agent's custom session state (the `custom` field of
     * `SessionState`), inferred from the agent's state type. Omitted when the
     * state type carries no schema to infer.
     */
    stateSchema: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodAny>>;
}, "strip", z.ZodTypeAny, {
    stateManagement: "server" | "client";
    abortable: boolean;
    stateSchema?: Record<string, any> | undefined;
}, {
    stateManagement: "server" | "client";
    abortable: boolean;
    stateSchema?: Record<string, any> | undefined;
}>;
/**
 * Agent capability metadata placed under `metadata.agent`.
 */
type AgentMetadata = z.infer<typeof AgentMetadataSchema>;

export { type AgentAbortRequest, AgentAbortRequestSchema, type AgentAbortResponse, AgentAbortResponseSchema, type AgentFinishReason, AgentFinishReasonSchema, type AgentInit, AgentInitSchema, type AgentInput, AgentInputSchema, type AgentMetadata, AgentMetadataSchema, type AgentOutput, AgentOutputSchema, type AgentResult, AgentResultSchema, type AgentStateManagement, AgentStateManagementSchema, type AgentStreamChunk, AgentStreamChunkSchema, type Artifact, ArtifactSchema, type GetSnapshotRequest, GetSnapshotRequestSchema, type JsonPatchOp, JsonPatchOpSchema, JsonPatchOperationSchema, JsonPatchSchema, type RuntimeError, RuntimeErrorSchema, type SessionSnapshot, SessionSnapshotSchema, type SessionState, SessionStateSchema, type SnapshotStatus, SnapshotStatusSchema, type TurnEnd, TurnEndSchema };