/**
 * Async delegation (N2) — spawn a background worker, collect it later, in any
 * order — types.
 *
 * Delegation today is a synchronous tool call: the supervising agent blocks
 * until the worker is done, so four investigations take four times as long as
 * one and the supervisor cannot do anything useful while it waits. These types
 * describe the background form — `spawn` hands back a `DelegateHandle`
 * immediately, `collect` returns whichever worker finished FIRST regardless of
 * which was started first, and each outcome carries a bounded summary plus a
 * {@link BankedArtifactRef} to the worker's full report, which is banked to a
 * file rather than pushed into the conversation.
 *
 * Naming: `agentNetwork.ts` already owns `DelegationRule` / `DelegationCondition`
 * and `isolatedAgent.ts` owns `AgentDelegationTurnState`, so everything here
 * carries the `Delegate` prefix (Critical Rule 9).
 */
import type { BankedArtifactRef } from "./artifact.js";
import type { AgentRunStatus } from "./isolatedAgent.js";
/** What a supervisor hands down when it spawns a background worker. */
export type DelegateSpawnOptions = {
    /** The task, in the supervisor's own words. Required and non-empty. */
    task: string;
    /** What the worker may look at — files, directories, systems. */
    scope?: string;
    /** Brief slice of context handed down (never the whole rulebook). */
    context?: string;
    /** Model override for this worker. */
    model?: string;
    /** Provider override for this worker. */
    provider?: string;
    /** Read-only tool allowlist for the worker (tool names). */
    tools?: string[];
    /**
     * Caller's session. Collection is scoped to it, and it is the key the task
     * checklist's `delegatesPending` / `delegatesReady` counters are read by.
     * Defaults to the session the host's tool context declares.
     */
    sessionId?: string;
    /** Caller's delegation depth; the worker runs one level deeper. */
    depth?: number;
    /** Short human label used in logs and in the banked report's name. */
    label?: string;
    /** Parent cancellation — an aborted parent cancels this worker. */
    abortSignal?: AbortSignal;
    /** Max agentic steps for the worker's research pass. */
    maxSteps?: number;
    /** Wall-clock budget for the worker's research pass (ms). */
    budgetMs?: number;
};
/**
 * Returned the moment a worker is spawned — before it has run anything.
 * `queued` is true when the process-wide delegation pool was full and the
 * worker is waiting for a slot.
 */
export type DelegateHandle = {
    workerId: string;
    spawnedAt: number;
    queued: boolean;
};
/**
 * A settled worker, claimed exactly once.
 *
 * `summary` is bounded; `report` points at the COMPLETE report on disk. The
 * two are not alternatives — the summary is what the conversation carries, the
 * report is what the evidence lives in.
 */
export type DelegateOutcome = {
    workerId: string;
    /** Human label the spawn was given (defaults to the worker id). */
    label: string;
    /** Reused from the isolated-agent runner — no parallel taxonomy. */
    status: AgentRunStatus;
    /** True for `completed` and `partial`: the worker produced usable evidence. */
    ok: boolean;
    /** Bounded narrative for the conversation. Never the whole report. */
    summary: string;
    /** The FULL report, always banked to a file. */
    report: BankedArtifactRef;
    durationMs: number;
    toolCallsUsed: number;
    /** Mechanical waste signatures the runner tripped, if any. */
    wasteSignals?: string[];
    /** `continueAgent()` handle when the worker was cut short mid-investigation. */
    handle?: string;
    /** Why the worker failed, when it did. */
    error?: string;
};
/** `any` returns the first worker to finish; `all` waits for every one. */
export type DelegateCollectMode = "any" | "all";
/**
 * What to collect. `waitMs` of 0 polls (return what is ready right now);
 * omitting it uses the runtime default.
 */
export type DelegateCollectRequest = {
    mode: DelegateCollectMode;
    waitMs?: number;
    sessionId?: string;
} | {
    workerId: string;
    waitMs?: number;
    sessionId?: string;
};
/**
 * Outcomes claimed by one collect call, in COMPLETION order — the order
 * workers finished in, which has nothing to do with the order they were
 * spawned in.
 */
export type DelegateCollectResult = {
    /** Claimed exactly once: these outcomes are gone from the registry. */
    completed: DelegateOutcome[];
    /** Still running or waiting for a pool slot. */
    pending: number;
    /** Finished but not yet claimed. */
    ready: number;
    /**
     * True when the wait expired before this call claimed what it asked for:
     * for a named worker, that worker's outcome; for `any`, any outcome while
     * work was still pending; for `all`, pending work remained when the wait
     * ran out. A collect that claimed something reports `false` even if other
     * work is still outstanding — `pending`/`ready` carry that.
     */
    timedOut: boolean;
};
/** Lifecycle of one background job. `claimed` jobs are dropped immediately. */
export type DelegateJobPhase = "queued" | "running" | "ready" | "claimed";
/**
 * Provider/model a model-invoked `delegate_task` spawn falls back to. The spawn
 * schema deliberately exposes no `provider` — a model cannot name a provider it
 * cannot see — so without a default the worker instance falls back to provider
 * auto-selection, which on a host with stray credentials puts a worker on a
 * provider nobody configured — observed live as workers walking several
 * unconfigured providers before reaching the configured one. The model's own
 * `model` argument still wins over `model` here.
 */
export type DelegateSpawnDefaults = {
    provider?: string;
    model?: string;
};
/** Per-host delegation policy, resolved from registration options. */
export type DelegateRuntimeSettings = {
    /** Caller depth at which `delegate_task` refuses rather than spawning. */
    maxDepth: number;
    /** How long a spawned worker waits for a pool slot before giving up (ms). */
    poolQueueTimeoutMs: number;
    /** Default `waitMs` for a collect that does not name one (ms). */
    defaultCollectWaitMs: number;
    /** Defaults merged under every model-invoked `delegate_task` spawn. */
    spawnDefaults?: DelegateSpawnDefaults;
};
/** Options for `NeuroLink.registerDelegationTools()`. */
export type DelegateRegistrationOptions = {
    /**
     * Caller depth at which further delegation is refused. Default 1: a
     * background worker does not spawn background workers, because nothing
     * would ever collect them.
     */
    maxDepth?: number;
    /**
     * Raise the process-wide delegation pool to at least this many concurrent
     * workers. The pool is shared with `registerAgentTool` and only ever rises.
     */
    maxConcurrent?: number;
    /** Queue wait before a spawned worker gives up on a pool slot (ms). */
    poolQueueTimeoutMs?: number;
    /** Provider/model for model-invoked spawns — see {@link DelegateSpawnDefaults}. */
    spawnDefaults?: DelegateSpawnDefaults;
};
/** What `delegate_task` returns: the handle plus the outstanding counters. */
export type DelegateSpawnToolResult = DelegateHandle & {
    pending: number;
    ready: number;
};
/** Refusal shape shared with the agent tool registrar: recovery text included. */
export type DelegateRefusal = {
    isError: true;
    error: string;
};