The server defines only 1 tool (get-xhs-post) with a basic but incomplete definition. The tool name uses a valid action verb (get_) and is reasonably specific. The description (72 chars) is present but lacks context about prerequisites, return structure, and error recovery. The input schema is visible and has proper typing (shareLink: string), but the parameter description is minimal and does not explain format/constraints. The tool's implementation shows error handling for invalid URLs and missing directories, but these recovery paths are not documented in the tool description, forcing the LLM to guess at failure modes. No output schema is documented in the tool definition, despite the code defining XhsPostSchema internally. The tool is READ_ONLY (correct annotation in metadata), but this is not declared in the MCP tool definition itself. The server lacks pagination, batch operations, and structured output documentation visible to the LLM. Overall, this is a minimal, domain-specific tool that works but would not pass a production code review due to incomplete documentation and lack of error guidance.

• Document the complete output schema in the tool description or via a formal response type. Include fields: success (boolean), url (string), title (string), description (string), images (array of strings), downloadedVideoPaths (array of strings), error (string), debugInfo (object with videoSourcesFound and interceptedVideoRequests arrays).
• Expand the shareLink parameter description to: 'The share link copied from Xiaohongshu (小红书) app or web. Accepts full URLs (https://www.xiaohongshu.com/...) or app-shortened links. Must be a valid, non-expired link to a public post. If invalid or expired, the tool returns an error message with the invalid link text.'
• Enhance the tool description to include: (1) What it does, scrapes post content, extracts images, and downloads videos from Xiaohongshu. (2) Prerequisites, requires a --download-folder to be configured at server startup. (3) Return structure, returns JSON with success, url, title, description, images array, downloadedVideoPaths array, and error (if failed). (4) Error recovery, on invalid link, check the link format; if the link is correct but rejected, the post may be private or deleted.
• Add idempotent/read-only hint to the tool definition so the LLM understands this tool has no side effects beyond file writes and can be safely retried.
• Consider splitting the error field in the response into a structured error object with error_code and error_message, allowing the LLM to programmatically detect and handle common failures (invalid_link, download_timeout, post_not_found).