31 tools with consistent naming (verb_noun pattern) and descriptions present. However, descriptions are often terse (10-50 chars), lacking context on WHEN to use tools or prerequisites. Parameter schemas are visible and typed, but descriptions for parameters are minimal, many just restate the parameter name. Output schemas are undocumented; LLMs cannot infer what fields to expect. Error handling is absent, no guidance on recovery, retryability, or actionable error messages. Security concerns: file paths are user-provided strings with no validation hints for path traversal. Composition is reasonable (each tool does one thing), but many tools lack idempotency guarantees or confirmation steps for destructive operations (pdf_delete_pages, pdf_unlock, video_compress).

• Expand tool descriptions to 100-200 chars. Include WHAT the tool does, WHEN to use it (vs similar tools), and what it returns. Example: 'pdf_compress: Reduce PDF file size using lossy compression. Use when file size matters more than visual quality. Returns path to compressed PDF and size reduction percentage.'
• Document output schemas for every tool. Specify return type (string, JSON object, file path) and key fields. Example: 'Returns {success: bool, output_path: str, size_bytes: int, compression_ratio: float}'.
• Add parameter constraints and ranges to descriptions. Example: 'quality: Compression level 1-100 (1=smallest, 100=best quality). Default 50 balances size and clarity.'
• Implement error handling with recovery guidance. Catch file-not-found, permission, and format errors. Return actionable messages: 'PDF not found at /path/to/file. Check the path and try again.' instead of stack traces.
• Add confirmation or dry-run support for destructive tools (pdf_delete_pages, pdf_unlock, video_compress). Return a preview of changes and require explicit confirmation before modifying files.

Inferred effective spec: <=2025-11-25.

• Relies on Logging (deprecated) - log to stderr or use OpenTelemetry