Three tools with complete input schemas and basic descriptions, but significant gaps in parameter documentation and output schema specification. Tool names follow verb_noun convention (add, greet, echo) but descriptions are minimal (10-34 chars, below the 50-200 char LLM-optimized baseline). No parameter descriptions visible in schema, LLMs cannot infer what 'a' and 'b' mean beyond type. No output schemas documented. No error handling guidance. This is a typical community server with functional but incomplete definitions.

• Add parameter descriptions to all schemas. For 'add': describe 'a' and 'b' as 'First integer operand' and 'Second integer operand', specify range (e.g., -2^31 to 2^31-1), and note if overflow is possible.
• Expand tool descriptions to 50-200 chars. Example for 'add': 'Add two integers and return their sum. Returns an integer result. Fails if inputs are not valid integers or would overflow.'
• Document output schemas explicitly. Specify: add() returns {result: integer}, greet() returns {greeting: string}, echo() returns {message: string, metadata: object}.
• Add error handling guidance. Specify which errors are retryable (e.g., timeout) vs. user-fixable (e.g., invalid input). Example: 'If add() fails with "invalid input", ensure both parameters are integers.'
• Rename 'echo' to a more specific verb_noun pair (e.g., 'reflect_message' or 'repeat_with_metadata') and clarify what metadata is returned.