/**
 * Delegation event types for session tracker.
 *
 * Extracted from types.ts to satisfy the ≤500 LOC gate (GA-4).
 * Contains the discriminated union and supporting types for the
 * Phase 58 (G6) delegation lifecycle event log.
 *
 * @module session-tracker/delegation-types
 */
import { z } from "zod";
/**
 * Zod enum schema for the delegation mechanism discriminator.
 * Schema-type parity ensures validated runtime values exactly match
 * the TypeScript union. Used by readers/types.ts for Zod parsing.
 */
export declare const DelegationTypeSchema: z.ZodEnum<{
    "async-spawn": "async-spawn";
    "native-task": "native-task";
    "slash-cmd": "slash-cmd";
    "sdk-direct": "sdk-direct";
}>;
/**
 * Phase 58 G6: Lifecycle status of a delegation. Mirrors the
 * `DelegationLifecycleStatus` from `src/coordination/delegation/pool-types.ts`
 * (the 7-literal superset: queued, dispatched, running, completed, failed,
 * aborted, paused). Re-declared here to keep the session-tracker module
 * self-contained (the G6 plan accepts the duplication per SPEC).
 */
export type DelegationLifecycleStatus = "queued" | "dispatched" | "running" | "completed" | "failed" | "aborted" | "paused";
/**
 * Discriminator for the delegation
 * mechanism that produced a child session. Differentiates Hivemind-owned
 * tools (delegate-task, execute-slash-command) from OpenCode's native
 * `task` tool and direct SDK calls.
 *
 * Mapping:
 * - `"async-spawn"` — Hivemind's `delegate-task` custom tool (creates child
 *   session, returns immediately with delegation ID — async WaiterModel)
 * - `"native-task"` — OpenCode's native `task` tool (user-issued, sync
 *   behavior in main session)
 * - `"slash-cmd"` — Hivemind's `execute-slash-command` tool (orchestrated
 *   command, may recurse)
 * - `"sdk-direct"` — direct SDK calls bypassing any tool (rare, completeness)
 *
 * Set at WRITE time only (per R7 mitigation). Optional everywhere so
 * existing on-disk files remain valid (R1 mitigation, zero schema breaks).
 * MVD scope: 10 files, ~80 lines. See
 * `.planning/research/session-tracker-cluster-map-2026-06-04.md` §12.
 */
export type DelegationType = z.infer<typeof DelegationTypeSchema>;
/**
 * Phase 58 G6 (REQ-58-06, D-58-13): Base shape for all 3 delegation lifecycle
 * events. Numeric `emittedAt` epoch enables monotonic ordering assertions
 * in BATS slot 66.
 */
export interface DelegationEventBase {
    /** Delegation id (child session id). */
    delegationId: string;
    /** Agent name dispatched. */
    agent: string;
    /** Lifecycle status at the time of emission. */
    status: DelegationLifecycleStatus;
    /** Delegation nesting depth. */
    depth: number;
    /** Parent delegation id, or null for top-level delegations. */
    parentId: string | null;
    /** Tmux session id if attached; null otherwise. */
    tmuxSessionId: string | null;
    /** Date.now() ms epoch — monotonic, sort-friendly. */
    emittedAt: number;
}
/**
 * Phase 58 G6 (REQ-58-06): 3-event delegation lifecycle contract.
 *
 * Each delegation emits:
 *   - `delegation-queued` (when `recordChildTaskDelegation` is called)
 *   - `delegation-dispatched` (after SDK child-session creation)
 *   - `delegation-terminal` (when status transitions to a terminal state)
 *
 * Monotonic via `emittedAt` numeric epoch. The 3 events flow through the
 * existing "delegation" SSE filter category at
 * `src/sidecar/server/routes/events.ts:15-31` without any filter array
 * changes (Q2 finding).
 */
export type SessionTrackerEvent = (DelegationEventBase & {
    type: "delegation-queued";
}) | (DelegationEventBase & {
    type: "delegation-dispatched";
}) | (DelegationEventBase & {
    type: "delegation-terminal";
});
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