This Spring Boot MCP server exposes 3 tools with significant definition gaps. The getAllPullRequests tool has a reasonable description (172 chars) and one parameter with a description, but lacks output schema documentation. The echo and add tools are test utilities with minimal descriptions (44 and 75 chars respectively) that fall below the 100-char baseline for clarity. All three tools lack explicit output schema documentation, which is critical for LLMs to plan downstream operations. Parameter descriptions are present but terse. The server uses Spring AI @Tool annotations correctly for registration, but the tool definitions are not optimized for agentic composition. HTTP transport is a positive; security integration via JWT is present. Overall, definitions are functional but below production baseline, descriptions need expansion, output schemas must be documented, and parameter constraints should be formalized.

• Add explicit output schemas to all tools. Document the structure of list items (e.g., 'Each PR contains: {pr_number: integer, title: string, state: string, author: string, created_at: ISO8601}')
• Expand tool descriptions: getAllPullRequests to 150 - 200 chars explaining use case (e.g., 'Fetches pull requests for the configured GitHub repo. Use this to search for pending reviews, closed work, or analyze PR trends. Returns basic metadata (number, title, state, author, creation date) for integration with downstream analysis tools.').
• Add enum constraint to 'state' parameter: {type: 'string', enum: ['open', 'closed', 'all'], default: 'open'}
• Remove or hide 'echo' and 'add' test tools from the MCP interface. If retained for testing, mark them as internal-only via a hidden capability flag.
• Implement pagination for getAllPullRequests. Add parameters: limit (1-100, default 20), page (default 1). Document max result count in the description.
• For getAllPullRequests response, document all returned fields and include pr_id or pr_number so downstream tools (e.g., getpr_reviews, addCommentToPR) can reference it.
• Add parameter descriptions explaining format constraints: 'state: one of open, closed, or all. Case-insensitive. Defaults to open if omitted.'
• Consider adding error recovery guidance: 'If invalid state is passed, returns a 400 error with allowed values. Always validate against the enum constraint before calling.'