mcp-go provides a framework for building MCP servers but the two example tools are severely underdeveloped. Tool 1 (make_authenticated_request) has a minimal description and only one parameter with a generic type string and no description. Tool 2 (echo) lacks any description entirely and has a parameter with no description. Neither tool documents output schemas, error handling, or recovery guidance. The framework itself supports tool annotations (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) but the examples do not leverage them meaningfully. No pagination, no structured output documentation, no error classification.

• Add a substantive description to 'echo' (currently missing). Example: 'Echoes back the provided message. Useful for testing connectivity and verifying message transmission. Returns the message unchanged.'
• Expand 'make_authenticated_request' description to 100-200 chars explaining: what service it authenticates with, what the message parameter should contain, what response structure to expect, and when to use it instead of other tools.
• Add descriptions to all parameters. For 'message', specify: type (string), format (plain text, JSON, etc.), max length, and what the tool does with it.
• Document output schemas for both tools. Specify: response type (object/string), fields returned, field types, and any pagination or error fields.
• Add error handling guidance: 'If authentication fails, check credentials. If the service is unavailable, retry after 30 seconds. If the message format is invalid, ensure it matches the expected schema.'

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

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