dev_radar has 7 tools with mostly complete schemas and descriptions. Naming follows verb_noun convention (search, get, check, propose, query). Descriptions are present and reasonably detailed (avg ~120 chars), meeting the 10-1024 char baseline. However, several tools lack parameter descriptions (e.g., get_user_interests and query_radar have empty input objects with no documentation), and output schemas are not explicitly documented in the source. Error handling is minimal, no recovery guidance or actionable error messages visible. Tool composition is reasonable but some tools (checkRepoForVulnerability, propose_pr_for_cve) perform multiple steps internally without exposing intermediate results, limiting agent composability.

• Add explicit parameter descriptions to get_user_interests and query_radar. Even though inputs are empty, document what the tool returns and when to call it (e.g., 'Returns the authenticated user's interest tags. Call this first to understand what topics the user follows.').
• Document output schemas for all tools. Include field names, types, and what each field represents. Example: 'Returns array of {id: integer, title: string, url: string, posted_at: ISO8601 string, source_name: string}'.
• Add error handling guidance to tool descriptions. E.g., 'If no items match the tags, returns empty array. If tag_slugs is invalid, returns 400 with message listing valid tags.'
• Split propose_pr_for_cve into two tools: get_pr_proposal (returns proposal details for review) and execute_pr_proposal (applies the fix). Enables agent to confirm before executing.
• Add rate limiting and timeout documentation. Specify max results per call (searchItems already caps at 100, good baseline) and expected response times to prevent agent hangs.