mcpkit is a CLI tool for generating MCP servers, not itself a production MCP server. The single 'echo' tool is trivial and serves only as a placeholder in the init command. The tool has a minimal description (18 chars, below the 20-char floor), a basic schema with one string parameter, and no error handling guidance. The server lacks all advanced patterns: no pagination, no idempotent hints, no recovery guidance, no permission gates. The codebase shows code generation logic for OpenAPI/SQLite/YAML sources, but the actual generated servers are not evaluated here, only the mcpkit server itself, which is essentially a stub.

• Expand tool description to 50-200 chars explaining purpose, when to call it, and what it returns. E.g., 'Echo back the provided text unchanged. Useful for testing connectivity and verifying input round-trip. Returns the exact input string.'
• Add parameter constraints: min/max length, character restrictions, format hints. E.g., 'text: z.string().min(1).max(1000).describe("Text to echo (1-1000 chars)")'
• Implement actual generator tools (generate_from_openapi, generate_from_sqlite, generate_from_yaml) that expose the CLI logic as MCP tools, or remove the echo stub and reposition mcpkit as a CLI utility only.
• Add tool annotations: readOnlyHint=true for echo (or any generated read-only tools), destructiveHint=true for generators that write files.
• Wrap tool calls in try-catch with actionable error messages: 'Text parameter required and must be 1-1000 characters' instead of raw stack traces.