/**
 * Working directory tracking across Bash calls.
 *
 * Each Bash tool call spawns a new shell process. Shell state
 * (env vars, aliases) does NOT persist between calls. Only the
 * working directory persists via this tracker.
 *
 * The tracker is reset to the default directory at the start
 * of each agentic loop.
 */
export declare class CwdTracker {
    private readonly defaultDir;
    private currentDir;
    constructor(defaultDir: string);
    /**
     * Get the current working directory.
     */
    getCwd(): string;
    /**
     * Update the working directory. The path is resolved to absolute.
     */
    updateCwd(newDir: string): void;
    /**
     * Reset to the default directory. Called at the start of each agentic loop.
     */
    reset(): void;
    /**
     * Get the default (initial) directory.
     */
    getDefaultDir(): string;
}
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