Agent Venue Radar demonstrates solid definition quality with complete input/output schemas, tool annotations, and clear descriptions. All 5 tools are properly registered with JSON Schema validation. Naming follows verb_noun convention (check_, recommend_, list_, evaluate_, get_). Descriptions are substantive (100-250 chars) and explain WHEN to use each tool. However, parameter descriptions are sparse, most enum values lack explanation of what each state means (e.g., 'active' vs 'gated' vs 'stale' in inventory enum). Output schemas are well-structured but lack per-field descriptions. Error handling is minimal, no recovery guidance or actionable error messages visible in the code sample.

• Add per-field descriptions to ASSESSMENT_SCHEMA and AUDIT_OFFER_SCHEMA output objects. Document what 'signals', 'breakdown', 'hard_blockers', 'conditions', 'sources' contain and how to interpret them.
• Expand evaluate_venue parameter descriptions to explain each enum value. E.g., 'inventory: active=currently accepting work, gated=requires approval, stale=no recent activity, none=not operational, test_only=sandbox only, unavailable=offline'.
• Implement and document error handling for common failures: venue not found, evidence too old, audit service unavailable. Return actionable messages like 'Venue not found. Try list_venues() to see available venues.' (pattern:recovery-guide).
• Add optional parameters with defaults to evaluate_venue. E.g., economics='unverified', security='normal' as defaults, so LLMs can omit uncertain criteria rather than guessing.
• Document list_venues behavior when no venues match the verdict filter. Clarify whether it returns empty array, null, or an error message.