Critical gaps across all dimensions. Of 33 tools, only 2 (download_file, download_multiple_files) have visible schemas and descriptions in source. The remaining 31 tools are inferred from switch statements with no explicit schema definitions visible. No tool descriptions are present in the code. Parameter types are not declared. Error handling is generic (500 errors with error.message). No tool annotations (readOnlyHint, destructiveHint, idempotentHint). Naming is inconsistent: 'sequentialthinking' lacks verb prefix; 'brave_local_search' vs 'brave_web_search' are unclear in purpose. No output schemas documented. No pagination support visible. This server exposes 14 WRITE operations (filesystem, GitHub, downloads) with no permission gates, audit trails, or confirmation patterns.

• Create explicit tool registration with JSON Schema for all 31 tools lacking schemas. Minimum: tool name, description (50-200 chars), input schema with type and description per parameter, output schema.
• Add descriptions to all tools. For each, answer: What does it do? When should the LLM call it? What does it return? Example: 'read_file: Read the contents of a text file. Use this to inspect code, config, or documentation. Returns file content as string and file size in bytes.'
• Implement permission gates for all WRITE operations. Check user/agent authorization before executing. Return 403 Forbidden with clear message if unauthorized. Log all destructive calls with user, timestamp, parameters, and result.
• Add error categorization and recovery guidance. For 'file not found', return: {error: 'File not found', code: 'FILE_NOT_FOUND', retryable: false, suggestion: 'Call list_directory() to see available files'}. For network errors, return retryable: true.
• Add tool annotations (readOnlyHint, destructiveHint, idempotentHint) to tool definitions. Mark all READ operations with readOnlyHint: true. Mark all WRITE operations with destructiveHint: true. Mark idempotent operations (e.g., create_directory if it already exists) with idempotentHint: true.

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

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