Two tools with basic schemas and descriptions, but significant gaps in parameter documentation and error handling. Both tools have clear verb-noun naming (save_file, make_directory) and non-empty descriptions (95 and 82 chars respectively, within the 10-1024 baseline). Input schemas are present with required fields defined. However, parameter descriptions are minimal (e.g., 'Absolute or relative file path' lacks format/constraint guidance), and there is no documented output schema. Error handling is present but generic (respondError with code and message only, no recovery guidance). No tool annotations (readOnlyHint, destructiveHint, idempotentHint) despite both tools being destructive WRITE operations. Missing pagination, batching, and composition patterns.

• Add destructiveHint and idempotentHint annotations to both tools in the tools/list response. Mark save_file as destructive (overwrites existing files) and idempotent (repeated calls with same args produce same result). Mark make_directory as idempotent.
• Document output schema explicitly. Define that both tools return {type: 'text', text: string} and specify what the text field contains (e.g., 'Confirmation message with the path that was created or saved').
• Enhance parameter descriptions with format constraints: 'path: Absolute or relative file path (no path traversal, max 4096 chars, must be within project root)' and 'content: UTF-8 text content (max 10MB)'.
• Implement path validation: reject paths containing '..', validate against a safe root directory, and return actionable errors like 'Path traversal detected: ../../../etc/passwd is not allowed. Paths must be within the project directory.'
• Improve error responses with recovery guidance. E.g., 'Permission denied writing to /root/.ssh/config. Check file permissions or try a different path.' instead of raw error codes.