MinimalServer has only 1 tool (echo) with critical definition gaps. The tool has a basic schema (message: string) but lacks a meaningful description entirely (null). Parameter description is null, violating the requirement that every parameter must have a non-empty description. The tool name 'echo' is generic and does not follow verb_noun convention (should be something like 'send_message' or 'echo_text'). No output schema is documented. Error handling is absent, no guidance on what happens on failure. The resource 'info' is present but not a tool, so does not factor into tool scoring. Overall, this server demonstrates minimal effort toward LLM-friendly tool design.

• Add a meaningful description to the 'echo' tool (50 - 200 chars): e.g., 'Echo back a message to verify text processing. Useful for testing message handling and confirming input was received correctly.'
• Add a description to the 'message' parameter: e.g., 'The text message to echo back (1 - 1000 characters).'
• Rename 'echo' to a more specific verb_noun name like 'send_message' or 'echo_text' to clarify intent.
• Document the output schema explicitly in code comments or JSDoc, including field names and types (e.g., 'Returns {content: [{type: string, text: string}]}')
• Add error handling: validate message length, return actionable errors like 'Message too long (max 1000 chars)' instead of generic failures.