Critical gaps across all dimensions. Tool 'add' has a description but parameters 'a' and 'b' lack descriptions (null values visible in schema). Tool 'review_sentence' has NO description at all. Both tools have schemas with type definitions but zero parameter documentation. No error handling, no output schemas documented, no composition guidance. Naming is acceptable ('add', 'review_sentence') but descriptions fail the 10-1024 character baseline. This server would not pass code review.

• Add a description to 'review_sentence' explaining what it does, when to call it, and what it returns. Target 50-200 characters.
• Document every parameter: 'a' (integer, what range?), 'b' (integer, what range?), 'sentance' (string, expected format/length?).
• Document output schemas for both tools. E.g., 'add returns an integer sum' and 'review_sentence returns a string with the reviewed prompt'.
• Add error handling: if 'a' or 'b' are out of range, return a clear error like 'Invalid input: a and b must be integers in range [-1000000, 1000000]'.
• Expand 'add' description to explain use case: 'Performs arithmetic addition of two integers. Use when the user asks to sum numbers. Returns the integer result.'