Single tool 'echo' has a clear verb-noun name and proper schema with type definitions. Description is adequate (89 chars, within 10-1024 range). Input parameter 'message' has type and description. Tool annotations (readOnlyHint, idempotentHint) are present and correct. However, output schema is not documented, the response structure is inferred from code, not declared in the tool definition. No error handling guidance. The server itself is a readiness checker, not a production tool suite, which limits the scope of evaluation.

• Document the output schema explicitly in the tool definition: {type: 'object', properties: {content: {type: 'array', items: {type: 'object', properties: {type: {type: 'string', enum: ['text']}, text: {type: 'string'}}}}}}
• Add error handling guidance to the description: 'Returns the input message unchanged. Fails if message is null or exceeds 10KB. Use for connectivity verification only.'
• Expand the description to clarify use case: 'Echo tool for MCP client smoke tests. Verifies server connectivity and message round-trip integrity. Always succeeds with read-only semantics.'
• Consider adding a 'delay_ms' optional parameter to simulate latency testing, with description and numeric bounds (0-5000).
• Add a 'max_length' constraint to the message parameter description: 'Message to return (max 10000 characters)' to set LLM expectations.