This server has significant definition quality gaps. While tool names are reasonably clear (add, userInfoOctokit, generateImage), several parameters lack descriptions, and output schemas are not explicitly documented. The 'add' tool is overly trivial for production. The 'generateImage' tool has good parameter constraints (min/max for steps) and descriptions, but userInfoOctokit lacks any parameter documentation despite having an empty input schema. No structured output schemas are documented, forcing LLMs to infer response structure. Error handling is absent, no guidance on retryability or recovery strategies.

• Document output schemas for all tools. For add: return {content: [{type: 'text', text: string}]}. For userInfoOctokit: return structure of Octokit getAuthenticated response (user_id, login, name, email, avatar_url, etc). For generateImage: return {content: [{type: 'image', data: string, mimeType: 'image/jpeg'}]}.
• Add error handling documentation. generateImage should note: 'May fail if prompt is blocked by content policy or AI quota exceeded. Retry after a delay or suggest refining the prompt.' userInfoOctokit should note: 'Fails if GitHub auth token is invalid or revoked.'
• Replace or remove the 'add' tool. It serves no real purpose and wastes agent reasoning. If intent is to demonstrate tool mechanics, use a real example like search_github_issues or list_github_repos.
• Expand userInfoOctokit description from current (~40 chars) to explain: 'Retrieves authenticated GitHub user profile information (login, name, email, public repos count). Returns user metadata from GitHub API. Requires active GitHub authentication via OAuth token.'
• For generateImage, document response content: 'Returns a JPEG image at 1024x1024 resolution. Image is returned as base64-encoded data in the content field.'
• Add parameter documentation for userInfoOctokit: Although it has no parameters, document that it implicitly requires 'GitHub OAuth token via server-side context'.
• Consider idempotency: generateImage with same prompt + steps should be idempotent (cached results). Document whether repeated calls return cached images or generate new ones.