This server exhibits significant quality gaps across naming, descriptions, and schema completeness. While tool names are action-oriented (add, userInfoOctokit, generateImage), parameter descriptions are sparse or missing entirely. The 'add' tool has zero parameter descriptions despite having inputs. The 'userInfoOctokit' tool takes no parameters but lacks clarity on what GitHub user info it returns. The 'generateImage' tool has better parameter documentation but still lacks output schema definition. No tools document their return types or structure. Error handling is absent, no guidance for recovery scenarios. Schema validation exists via Zod but is not visible as JSON Schema documentation for LLM consumption.

• Add explicit parameter descriptions to 'add' tool: 'a': 'First number to add (any real number)', 'b': 'Second number to add (any real number)'
• Rename 'userInfoOctokit' to 'get_authenticated_user' to follow verb_noun convention and clarify it fetches the authenticated user, not a generic user lookup.
• Document output schema for all tools. Example: 'add returns {type: "number", description: "The sum of a and b"}', 'userInfoOctokit returns {type: "object", properties: {login, name, email, ...GitHub fields...}}', 'generateImage returns {type: "image", mimeType: "image/jpeg"}'
• Expand 'add' tool description from 34 to 80+ chars: 'Adds two numbers and returns their sum. Use this to perform basic arithmetic operations. Returns the result as a number.'
• Add error handling wrapper: catch failures from 'generateImage' and return structured errors like 'Image generation failed: {reason}. Please try again or contact support if the problem persists.'
• Expose ALLOWED_USERNAMES security control in documentation or make tool availability unconditional so LLMs can reliably discover it.
• Add constraint documentation to generateImage parameters: steps description should include 'Must be between 4 and 8 inclusive (higher steps improve quality but increase latency)'.