/** Extract run-dir artifact paths from a task string. */
export declare function extractArtifactPaths(taskText: string, runId: string): string[];
/** Called from the tool_call hook for every subagent/subagent_resume call.
 *  Never throws; steps aside on any problem. */
export declare function recordSpawnArtifacts(toolName: string, input: Record<string, unknown> | undefined, cwd: string): void;
/** Called from the input hook. When a subagent completion notice arrives
 *  during an active run and its recorded artifact is missing/empty, returns
 *  the text to append. Returns undefined when everything is fine or unknown. */
export declare function completionWarning(text: string, cwd: string): string | undefined;
/** Test helper: clear the in-memory spawn record. */
export declare function resetCompletionGuard(): void;