import { PainChainReadModel } from './pain-chain-read-model.js';
import type { PainChainTrace } from './pain-chain-read-model.js';
import { PruningReadModel } from './pruning-read-model.js';
import type { CandidateAuditResult } from './candidate-audit.js';
import type { GfiWorkspaceSnapshot } from './gfi/gfi-read-model.js';
export type OverallHealthStatus = 'healthy' | 'degraded' | 'error';
export interface OperatorHealthSnapshot {
    generatedAt: string;
    workspace: string;
    painChain: {
        lastSuccessfulChain: PainChainTrace | null;
        failureCategory: string | null;
    };
    candidateLedger: {
        auditStatus: CandidateAuditResult['status'];
        orphanCandidateCount: number;
        missingLedgerCount: number;
    };
    pruning: {
        watchCount: number;
        reviewCount: number;
        orphanDerivedCandidateCount: number;
    };
    gfi: GfiWorkspaceSnapshot;
    overallStatus: OverallHealthStatus;
    recommendedActions: string[];
    /** Total number of tasks in the workspace DB. Used to distinguish cold-start (0 tasks) from real degradation (tasks exist but no successful chain). */
    totalTaskCount: number;
}
export interface OperatorHealthReadModelOptions {
    workspaceDir: string;
    painChainReadModel?: PainChainReadModel;
    pruningReadModel?: PruningReadModel;
}
export declare class OperatorHealthReadModel {
    private readonly workspaceDir;
    private readonly injectedPainChainReadModel;
    private readonly injectedPruningReadModel;
    private ownedPainChainReadModel;
    private ownedPruningReadModel;
    constructor(opts: OperatorHealthReadModelOptions);
    getSnapshot(): Promise<OperatorHealthSnapshot>;
    close(): Promise<void>;
}
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