This is a WeChat Mini Program skill template/CLI tool, not a functional MCP server. The two tools (getWelcome, greet) are defined in JSON template files, not as executable MCP tool registrations. Tool definitions exist only as static JSON schemas in mcp.json files within templates. No actual MCP server implementation is visible, no tool handler functions, no request/response processing, no error handling logic. The tool descriptions are in Chinese and lack the English clarity needed for LLM reasoning. Input schemas are present but minimal (single string params with basic descriptions). Output schemas are documented in the JSON but not validated or enforced. This appears to be a scaffolding tool for generating Mini Program skill boilerplate, not a production MCP server.

• Implement actual MCP server with tool handlers. Define tools via MCP's tool registration API (not static JSON templates). Each tool needs a handler function that validates inputs, calls the underlying API, and returns structured responses.
• Provide English descriptions for all tools. Translate Chinese descriptions to English and expand to 50 - 200 characters, explaining WHAT the tool does, WHEN to use it, and WHAT it returns. Example: 'getWelcome: Fetch personalized welcome message and recommended skills for the current user. Call on app launch to display greeting and available actions.'
• Add input validation and constraints. Define enums for known values, add length/format constraints to strings, mark required vs optional fields explicitly. Example: userId should be marked optional with description 'User's WeChat openid (empty on first visit)'.
• Document output schemas with field descriptions. Expand outputSchema to include descriptions for each field (welcomeMsg, quickActions, recommendedSkills, usageTip). Specify array item types and nested object structures.
• Add error handling and recovery guidance. Document what errors can occur (e.g., 'User not found', 'Network timeout'), whether they are retryable, and what the LLM should do next. Example: 'If userId is invalid, call getWelcome with empty userId to fetch default welcome message.'