/**
 * StalledDiagnosticianTaskReadModel — read model to detect stalled diagnostician tasks.
 *
 * A stalled task has taskKind = 'diagnostician', status = 'pending', attemptCount = 0,
 * no runs, and age > thresholdSeconds.
 *
 * PRI-377 — Surface stalled diagnostician tasks with explicit next actions.
 */
import type { RuntimeStateManager } from './store/runtime-state-manager.js';
export interface StalledDiagnosticianTaskInfo {
    readonly taskId: string;
    readonly inputRef: string | null;
    readonly age: number;
    readonly reason: string;
    readonly nextAction: string;
}
export interface StalledDiagnosticianTaskReadModelOptions {
    stateManager: RuntimeStateManager;
}
export declare class StalledDiagnosticianTaskReadModel {
    private readonly stateManager;
    constructor(opts: StalledDiagnosticianTaskReadModelOptions);
    checkStalledTask(taskId: string, thresholdSeconds?: number): Promise<StalledDiagnosticianTaskInfo | null>;
    listStalledTasks(thresholdSeconds?: number): Promise<StalledDiagnosticianTaskInfo[]>;
}
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