This MCP server has exactly one tool (hello.echo) with a minimal implementation. The tool has a basic description and a simple input schema, but falls far short of production-grade quality. The tool name lacks an action verb ('echo' alone is not a command, it should be 'send_echo' or similar). The description is extremely generic (27 characters) and provides no context about when to use the tool, what it actually does beyond repeating input, or what the output format is. The input schema is present but extremely minimal, no constraints, no range limits, no guidance on expected input length. There is no documented output schema visible in the code. Error handling and validation are not apparent. The tool appears to be a smoke test / CI artifact rather than a production-grade MCP tool. No security considerations, no idempotency guarantees, no composition guidance. This server is suitable only for testing HTTP transport; it provides no real utility and serves as a minimal proof-of-concept.

• Rename tool to 'send_echo' or 'echo_text' to start with a clear action verb that signals intent to the LLM.
• Expand description to 80-150 characters. Example: 'Echo back the provided text. Useful for testing tool calling or echoing messages. Returns the same text unchanged.'
• Add constraints to the 'text' parameter schema: minLength: 1, maxLength: 10000, description: 'Text to echo back (1-10000 characters). Used for testing or message relay.'
• Document the output schema explicitly. Example: { 'type': 'object', 'properties': { 'echoed_text': { 'type': 'string', 'description': 'The echoed input text.' } } }
• Add error handling examples in the tool description: 'Returns 400 Bad Request if text is empty or exceeds 10000 characters. Returns 500 Internal Server Error if the echo service is unavailable; retry after 5 seconds.'

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

• Relies on Stateful initialize / Mcp-Session-Id (removed; protocol is stateless) - make each request self-contained