import type { CustomToolsConfig, GthConfig, ServerTool } from '@gaunt-sloth/core/config.js';
import { type BaseToolkit, StructuredToolInterface } from '@langchain/core/tools';
export declare const GSLOTH_PR_DISCOVERY_PROMPT = ".gsloth.pr-discovery.md";
export interface PrDiscoveryConfig {
    /**
     * Enable change requirements discovery when neither PR id nor requirements id is provided.
     * @default true
     */
    enabled?: boolean;
    /**
     * Fetch the current-branch PR diff with `gh pr diff` before invoking the discovery agent.
     * The discovery agent can still replace it with the `set_diff` tool if needed.
     * @default true
     */
    deterministicDiff?: boolean;
    /**
     * Optional tool overrides used only while the discovery agent runs.
     * When omitted, the normal configured tools remain available.
     */
    filesystem?: string[] | 'all' | 'read' | 'none';
    builtInTools?: string[];
    customTools?: CustomToolsConfig | false;
    tools?: StructuredToolInterface[] | BaseToolkit[] | ServerTool[];
    /**
     * Restrict the discovery agent to this allow-list of tool names, applied after every tool
     * source (filesystem, built-in, custom, MCP, A2A, and `tools`) is resolved. Unlike
     * `builtInTools`/`customTools`/`filesystem` (which gate whole tool groups), this trims the
     * final tool set by exact name, so it can pare down MCP server tools
     * (e.g. "mcp__jira__getJiraIssue") and the discovery helper tools
     * ("gh_pr"/"gh_diff"/"gh_issue"/"set_diff") to the minimum needed.
     *
     * `set_requirements` is always retained regardless, since it is how the discovery agent
     * records the requirements it found. When omitted, all resolved tools remain available; an
     * empty array keeps only `set_requirements`. The discovery agent never inherits the
     * top-level {@link GthConfig.allowedTools}; this property is its only allow-list.
     */
    allowedTools?: string[];
}
declare module '@gaunt-sloth/core/config.js' {
    interface PrCommandConfig {
        /** Change requirements discovery (`gth pr` with no arguments) configuration. */
        discovery?: PrDiscoveryConfig;
    }
}
/**
 * Read the PR discovery agent prompt, honouring project / identity-profile
 * overrides and falling back to the default prompt shipped with the assistant package.
 */
export declare function readPrDiscoveryPrompt(config: Pick<GthConfig, 'identityProfile' | 'noDefaultPrompts'>): string;
export interface PrDiscoveryResult {
    diff: string;
    requirements: string;
}
export declare function runPrDiscovery(config: GthConfig): Promise<PrDiscoveryResult>;