export interface FileState {
    source: string;
    file_path: string;
    file_mtime: string | null;
    file_size: number | null;
    status: string | null;
}
export declare function getFileState(source: string, filePath: string): FileState | null;
export declare function listFileStates(source: string): FileState[];
export declare function setFileState(source: string, filePath: string, mtime: string | null, size: number | null, status: string, errorMessage?: string): void;
/** Recompute the ingestion_stats rollup for a source from the live tables. */
export declare function updateIngestionStats(source: string): void;
export interface IngestionStats {
    source: string;
    session_count: number;
    message_count: number;
    tool_call_count: number;
    total_tokens: number;
    last_ingested_at: string | null;
}
export declare function getIngestionStats(): IngestionStats[];
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