export type RetrievalSourceLayer = 'composite' | 'memory' | 'knowledge';
export interface RetrievalAccuracy {
    data_freshness_ms: number;
    source_layer: RetrievalSourceLayer;
    execution_status: 'executed' | 'no_candidates' | 'all_candidates_ineligible' | 'unavailable' | 'failed' | 'blocked';
}
export type RetrievalResultAuthority = 'authoritative_task' | 'diagnostic';
export interface RetrievalResultMetadata {
    authority: RetrievalResultAuthority;
    _devflow_evidence_refs?: string[];
    _devflow_unique: Record<string, string | number | boolean>;
    _accuracy: RetrievalAccuracy;
}
export type RetrievalLedgerStage = 'eligible' | 'candidate' | 'selected' | 'consumed' | 'verified' | 'positive_outcome' | 'negative_outcome' | 'unknown_outcome' | 'rejected';
export interface RetrievalLedgerCandidate {
    sourceType: 'code' | 'memory' | 'knowledge' | 'action';
    sourceId: string;
    rank?: number;
    rawScore?: number;
    normalizedScore?: number;
    finalScore: number;
    applicability: string[];
    payload?: Record<string, unknown>;
}
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