f4rmhouse is an HTTP-based MCP server with a Next.js frontend and only 1 tool registered. The 'add' tool has a complete JSON Schema with two number parameters properly typed and described. However, the tool definition itself is defined in MockMCPServer.ts, suggesting this is a mock/test implementation rather than a production server. The descriptions are minimal (20-30 chars), meeting the hard floor but not production quality. The server exposes prompts and resources capabilities but no tool annotations, error handling guidance, or structured error recovery. The implementation uses @modelcontextprotocol/sdk correctly for HTTP transport but lacks documentation on output schemas, error handling patterns, and compositional design. Most critically, only a single 'add' tool is visible, this appears to be a minimal demonstration server rather than a feature-complete implementation.

• Clarify whether this is a demo/test server or production. If production, move tool definitions out of __mocks__ and into proper registration.
• Expand 'add' description to 50-150 chars: 'Adds two numbers together and returns their sum. Use this for arithmetic operations. Returns the numeric result or an error if inputs are invalid.'
• Document output schema explicitly: 'Returns an object with fields: {result: number, error?: string}' or equivalent in the tool definition.
• Add error handling guidance: 'If inputs are not valid numbers, returns {error: "Invalid input: expected two numbers"}. Retry with properly typed inputs.'
• Rename 'add' to 'add_numbers' to match verb+noun convention and production naming baselines.
• Add tool annotations to the 'add' tool definition: set idempotentHint=true since arithmetic is side-effect-free.
• Document parameter types and ranges: 'a (number): First addend, range -1e308 to +1e308' and 'b (number): Second addend, range -1e308 to +1e308'.
• If other tools (f4-tool, mcp_sse_tool) are meant to be exposed, add them to the MCP server registration and document their schemas, descriptions, and error handling.
• Implement per-request logLevel support via _meta (current MCP spec) instead of relying on deprecated setLevel patterns.

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

• Relies on Dynamic Client Registration (deprecated) - use Client ID Metadata Documents (CIMD)