Server implements 7 file operations with basic async functionality. Tool naming is clear and verb-based (list_, read_, write_, create_, delete_, search_). Descriptions are present but minimal (avg 34-45 chars). Input schemas exist but lack richness, parameter descriptions are sparse, no enums for mutually exclusive options, no documented return schemas visible. Error handling exists at implementation level but lacks actionable recovery guidance in descriptions. Path validation is thorough (prevents directory traversal), but output schema documentation is absent from tool definitions. Per-tool average: 62/100.

• Expand tool descriptions to 100-200 chars each. Example for read_file: 'Read and return the complete contents of a text file. For files >10MB use read_file_filtered to avoid timeouts. Returns raw text; binary files are reported as [Binary file, N bytes]. Supports UTF-8 and will attempt fallback to binary if text decode fails.'
• Document output schemas in descriptions. Add: 'Returns: array of {name: string, path: string, type: 'file'|'directory', size: integer|null, modified: unix_timestamp}' for list_directory.
• Add actionable error recovery hints to descriptions. Example: 'If file is too large (>10MB), use read_file_filtered with tail_lines or filter_pattern to retrieve specific portions.'
• Enhance parameter descriptions with constraints. For 'content' in write_file: 'UTF-8 text to write. Maximum 10MB. Will create parent directories if needed.'
• For delete_path, add warning: 'Irreversible operation. Cannot delete non-empty directories. Verify path before calling.' Consider adding optional 'force' parameter to handle non-empty dirs or require two-step confirmation pattern.
• Document max_results behavior in search_files description: 'Searches up to max_results * 2 files concurrently, returns up to max_results matching files with up to 5 matches per file. Use pagination for large result sets.'
• For read_file_filtered, clarify interaction of filter_pattern, tail_lines, and max_lines: 'If both filter_pattern and tail_lines are set, filter is applied after tail extraction. max_lines caps total returned lines (default 1000).'