This server has moderate definition quality with several consistent weaknesses. All 8 tools are explicitly registered with Zod schemas and descriptions. Naming follows verb_noun conventions (get_*, create_*) which is correct. However, descriptions are universally terse (8-27 characters), well below the baseline of 194 chars and the actionable range of 50-200 chars. Parameter descriptions exist but are minimal. Output schemas are not documented, responses are returned as unstructured JSON text wrapped in content[0].type='text'. No tool has error recovery guidance. The server lacks tool annotations (readOnlyHint, destructiveHint, idempotentHint). One write tool (create_blog_post) has no confirmation or dry-run mechanism. Parameter defaults are safe. The codebase shows proper error handling with try-catch and isError flags, but error messages are generic and not actionable.

• Expand all tool descriptions to 50 - 200 characters. For example: 'get_blog_posts' should become 'Retrieve blog posts with optional filters for author, publication status (draft/published), and result limit. Use this to discover existing content before creating new posts or to list posts for the user.'
• Document output schemas explicitly. Add a 'Returns' section to each tool description, or create a separate schema document. Example: 'Returns: Array of {id: string, title: string, slug: string, published: bool, created_at: ISO8601, author_id: string}'.
• Add tool annotations. Mark create_blog_post with destructiveHint: true and published parameter with destructiveHint if true. Mark all read-only tools with readOnlyHint: true.
• Improve error messages with recovery guidance. Change 'Error fetching blog posts: {message}' to 'Failed to fetch blog posts: {message}. Retryable. If this persists, verify your SUPABASE_ANON_KEY is valid and unexpired.'
• Standardize pagination: all list tools should accept both 'limit' (1 - 100, default 20) and 'offset' (0+, default 0), and return a 'total_count' field so LLMs know if more results exist.
• Add confirmation-before-execute for create_blog_post. Require a confirmation step before publishing (published=true). Example: 'Warning: setting published=true will make this post immediately visible. Call confirm_publish_blog_post(post_id) first.'
• Constrain numeric parameters explicitly. 'limit: number, range 1 - 100' and 'offset: number, minimum 0'. Add enum descriptions: 'status: enum of [draft (unsent), scheduled (queued for send), sending (in progress), sent (completed), failed (delivery error)]'.