Four tools with clear verb-noun naming (list_*, get_*, download_*) and complete input schemas. Descriptions are present and moderately detailed (80-180 chars), explaining what each tool does and what it returns. All parameters have type definitions and descriptions. However, output schemas are not formally documented, responses are described in prose ('Returns raw App Store Connect API JSON') rather than as structured JSON Schema. Error handling is present (input validation with ValueError) but lacks recovery guidance for LLMs. No tool annotations (readOnlyHint, etc.) despite all being read-only operations. Parameter descriptions could be more explicit about constraints (e.g., 'limit must be 1-200' is validated but not stated in the description text).

• Add formal JSON Schema output documentation for each tool. E.g., list_screenshot_feedback returns {data: [{id, attributes: {createdDate, comment, email, ...}}], meta: {pagination: {total, limit}}}. Use JSDoc or inline schema comments.
• Move constraint descriptions into parameter descriptions. Change 'limit' description from 'Maximum number of submissions to return' to 'Maximum number of submissions to return (1-200, default 50)'. Same for asc_app_id: 'The app's numeric Apple ID (digits only)'.
• Add readOnlyHint annotations to all four tools via FastMCP's tool decorator. E.g., @mcp.tool(readOnlyHint=True).
• Enhance error messages with recovery guidance. E.g., raise ValueError('asc_app_id must be numeric. If you have the app name, call search_apps() first to get the numeric ID.').
• Document the download_screenshot host allowlist explicitly in the description: 'URL must be HTTPS from Apple-controlled domains (.apple.com, .mzstatic.com, .icloud.com).'