interface ExtractedMessage {
    role: string;
    text: string;
    timestamp: string;
    sessionId: string;
}
/** Extract messages from an OpenClaw session JSONL file.
 *  Reads from lastByteOffset for incremental processing.
 *  Returns extracted messages and new byte offset. */
declare function extractOpenClawMessages(filePath: string, lastByteOffset?: number): {
    messages: ExtractedMessage[];
    newByteOffset: number;
};
/** Detect whether a JSONL file is OpenClaw format.
 *  Checks the first line for type:"session" with version field
 *  (OpenClaw uses this header; Claude Code does not). */
declare function isOpenClawJsonl(filePath: string): boolean;

export { type ExtractedMessage, extractOpenClawMessages, isOpenClawJsonl };