/**
 * Shared filesystem watcher factory for mountable adapters.
 *
 * Uses chokidar for cross-platform, debounced file watching.
 *
 * Automatically reads .gitignore from the watched directory and merges
 * those patterns into chokidar's ignore list. This prevents scanning
 * large generated directories (node_modules, dist, .next, etc.) that
 * most projects already declare as ignored.
 */
import type { ConnectorChangeEvent } from "./connector-types.js";
import type { WatchHandle, WatchOptions } from "./shared-types.js";
/** Default chokidar `awaitWriteFinish` stability threshold (ms). */
export declare const DEFAULT_DEBOUNCE_MS = 150;
/**
 * Create a cross-platform filesystem watcher on `rootDir` using chokidar.
 * Auto-reads `.gitignore` from `rootDir` and merges those patterns into the ignore list.
 * @param rootDir - Absolute path to the directory to watch.
 * @param callback - Called with each `ConnectorChangeEvent` (create / edit / delete).
 * @param options - Debounce interval and additional ignore patterns.
 * @returns A `WatchHandle` — call `.close()` to stop watching.
 * @docLink packages/connectors/api-reference#create-fs-watcher
 */
export declare function createFsWatcher(rootDir: string, callback: (event: ConnectorChangeEvent) => void, options?: WatchOptions): Promise<WatchHandle>;
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