export interface ContextEvidence {
    id: string;
    sourceType: 'conversation' | 'connector' | 'user' | 'runtime';
    sourceInstanceId?: string;
    sourceRef: string;
    sourceRunId?: string;
    sourceItemId?: string;
    sessionId?: string;
    turnId?: string;
    messageId?: string;
    contentHash?: string;
    retentionPolicy?: string;
    processingPolicy?: 'local_only' | 'remote_allowed';
    extractorId?: string;
    extractorVersion?: string;
    redactedExcerpt?: string;
    trustLevel: 'owner' | 'trusted' | 'untrusted';
    observedAt: number;
    ingestedAt: number;
    createdAt: number;
}
export declare function createContextEvidence(input: Omit<ContextEvidence, 'id' | 'ingestedAt' | 'createdAt'> & {
    ingestedAt?: number;
}, principalId?: string): ContextEvidence;