This server has critical definition quality issues across both tools. The 'addTwoNumbers' tool is toy functionality unrelated to the server's stated Twitter X purpose. The 'createPost' tool lacks idempotency documentation despite being a destructive operation. No output schemas are documented. Parameter naming lacks description suffixes (should be 'status_text' or similar with constraints). Overall, this is below the median community server quality baseline (~45-55).

• Add non-null descriptions to ALL parameters. For 'a' and 'b': 'Number to add (must be numeric)'. For 'status': 'Text content of the post (max 280 characters, plain text or URLs).'
• Expand tool descriptions to 50-200 characters each. Example: createPost → 'Post a new message to the authenticated user's X timeline. Supports plain text and URLs (280 char limit). Returns the new post ID and timestamp.'
• Document output schemas explicitly. Example: 'Returns { content: [{ type: "text", text: string }], tweet_id: string, created_at: ISO8601 }'
• Remove addTwoNumbers, it is unrelated to the Twitter X domain and adds cognitive load without value.
• Add error handling to createPost with recovery paths: 'If auth fails, verify TWITTER_* env vars. If post is too long, truncate to 280 chars. If rate limited, retry after 15 minutes.'
• Document createPost as a non-idempotent, write-only operation. Add guidance: 'Retrying with identical status will create a duplicate post. Consider implementing deduplication checks.'
• Add per-tool scope declarations. createPost requires 'write:tweets' scope.
• Implement input validation: validate status length ≤280, trim whitespace, reject empty strings with clear error messages.
• Add audit logging: log calls to createPost with timestamp, status preview (first 50 chars), and result (success/error code).