FATH is a file tree analysis tool with severe definition quality gaps. All three tools have descriptions in Indonesian (non-standard for agent tooling), lack proper parameter documentation, and expose implementation details (regex objects, internal recursion depth) as parameters. The schema for get_paths includes non-serializable 'object' types (compiled regex patterns) that cannot be passed by LLMs. handle_config mixes multiple concerns (init, update, args, desc, set, fath actions) into one tool. No output schemas are documented. Error handling is minimal, most failures result in sys.exit() rather than structured error responses suitable for agent recovery.

• Replace regex object parameters with string patterns: Change get_paths(ext_regex, fn_regex, exc_regex) to accept ext_pattern, fn_pattern, exc_pattern as strings. Compile regex inside the tool and return clear error messages if patterns are invalid.
• Translate descriptions to English and expand to 50 - 150 characters: E.g., 'get_paths' → 'Recursively scan a directory and return file paths matching extension, filename, or exclusion patterns. Respects max_depth limit. Returns list of relative paths.'
• Document output schemas for all tools: E.g., get_paths returns {paths: [string], total_count: integer}; print_saved_tree returns {status: 'printed'}; handle_config returns {action: string, status: string, message: string}.
• Split handle_config into separate tools: create_config, update_config, get_config_args, set_path_description. Each tool does one thing; agents compose them as needed.
• Remove internal parameters: Delete current_depth and base_dir from get_paths signature. Manage recursion state inside the function without exposing it to the LLM interface.