/**
 * Parses a Codex (OpenAI CLI) JSONL session file into FullMessage[].
 *
 * Codex sessions are stored at:
 *   ~/.codex/sessions/YYYY/MM/DD/rollout-<timestamp>-<thread-id>.jsonl
 *
 * Each line is: { timestamp, type, payload }
 *
 * Indexed:
 *   - event_msg.user_message
 *   - response_item.message where role=assistant and phase=final_answer
 *   - response_item.function_call paired with function_call_output by call_id
 *
 * Skipped:
 *   - response_item role=user/developer injections
 *   - assistant commentary phase
 *   - reasoning items and other metadata lines
 */
import type { FullMessage } from "./types";
export declare function codexSessionToMessages(filePath: string): FullMessage[];
export declare function deriveCodexSessionTitle(messages: FullMessage[], lastAssistantMessage?: string): string;
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