Single tool with minimal definition quality. Tool name 'download_media' lacks action verb clarity (should be 'get_media' or 'fetch_media'). Description is adequate (73 chars) but lacks WHEN/WHY guidance. Input schema present but parameter 'url' lacks format/constraint documentation. No output schema documented, LLMs cannot predict response structure. No error handling guidance; catch-all returns generic error messages. Tool does not indicate idempotency, read-only nature, or retry safety despite being READ_ONLY risk class.

• Rename tool to 'get_media_from_url' or 'fetch_media' to start with clear action verb matching pattern:tool baseline (90% of A+ tools).
• Document output schema: {type: 'object', properties: {platform: {type: 'string'}, media: {type: 'object', description: 'Media metadata and download links'}, error: {type: 'string'}}, required: ['platform']}.
• Add format constraint to 'url' parameter: 'URL must be HTTPS from Instagram, TikTok, Facebook, YouTube, Twitter, or Pinterest. Example: https://www.instagram.com/p/ABC123/'.
• Implement categorized error responses: 'Invalid URL: must be from Instagram, TikTok, Facebook, YouTube, Twitter, or Pinterest' (user-fixable) vs 'API service unavailable. Retry in 30 seconds' (retryable).
• Add idempotentHint: true to tool schema to signal LLM that repeated calls with same URL are safe and produce identical results.