/**
 * Persistence layer for the Loop scheduler.
 *
 * Handles disk I/O for:
 *  - loops.json (Loop definitions)
 *  - loop-executions/<loopId>/index.jsonl (per-loop execution metadata)
 *  - loop-executions/<loopId>/<executionId>.jsonl (per-execution raw message log)
 *
 * Pure I/O — no scheduling, no in-memory state. Atomic write for loops.json
 * (write tmp → rename) to survive crashes.
 */
import type { ClaudeMessage } from './claude.js';
import type { HistoryMessage } from './history.js';
import type { Loop, LoopExecution } from './scheduler.js';
export declare function loadLoopsFromDisk(): Loop[];
export declare function saveLoopsToDisk(loops: Loop[]): void;
export declare function ensureExecutionDir(loopId: string): void;
export declare function getExecutionIndexPath(loopId: string): string;
export declare function getExecutionLogPath(loopId: string, executionId: string): string;
export declare function appendExecutionIndex(loopId: string, execution: LoopExecution): void;
export declare function updateExecutionIndex(loopId: string, execution: LoopExecution): void;
/**
 * Read the execution index for a loop, sorted by startedAt descending.
 * Caller is responsible for merging in-memory running-state overrides.
 */
export declare function readExecutionIndex(loopId: string, limit: number): LoopExecution[];
export declare function appendToExecutionLog(loopId: string, executionId: string, msg: ClaudeMessage): void;
export declare function readExecutionLog(loopId: string, executionId: string): HistoryMessage[];