import type { CompletionOrchestratorDeps } from "../completion/completion-orchestrator.ts";
/**
 * Debounced asynchronous state persistence. Safe to call frequently.
 */
export declare function persistState(deps: CompletionOrchestratorDeps): void;
/**
 * Adds a task ID to the notification outbox and triggers persistence.
 */
export declare function addToOutbox(deps: CompletionOrchestratorDeps, taskId: string): void;
/**
 * Force synchronous flush of any pending persistState writes.
 */
export declare function flushPersist(deps: CompletionOrchestratorDeps): Promise<void>;
/**
 * Synchronous version of flushPersist() for process-exit crash safety.
 */
export declare function flushPersistSync(deps: CompletionOrchestratorDeps): void;
/**
 * Remove a task and its event state from all in-memory maps, persist,
 * schedule-side cleanup of sidecar files, clear progress events,
 * delete checkpoints, and clear milestone threshold tracking.
 */
export declare function cleanupTask(deps: CompletionOrchestratorDeps, taskId: string): void;
/**
 * Schedule a delayed cleanup. Used by recovery.
 */
export declare function scheduleCleanup(deps: CompletionOrchestratorDeps, taskId: string): void;
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