import type { StateStore, WatcherState } from "./types.js";
/**
 * Reads the watcher state from `path`. If the file does not exist, returns a
 * fresh empty state. The state file is plain JSON — the agent can read it
 * directly to inspect what has been seen across runs.
 */
export declare function readState(path: string): WatcherState;
export declare function writeState(path: string, state: WatcherState): void;
/**
 * Filesystem-backed StateStore for Node consumers. Wraps the sync
 * readState/writeState above. Use in CLI and Node test paths.
 */
export declare function fsStateStore(path: string): StateStore;
/**
 * In-memory StateStore. Useful for tests and dry-run inspection where
 * neither filesystem nor KV is available.
 */
export declare function memoryStateStore(initial?: WatcherState): StateStore;
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