## REVIEWER AUDIT - APPROVED ✓
### Implementation Review
**Scope**: Exactly 2 files modified - both directly related to ticket scope ✓
**Acceptance Criteria - All Met**:
| Criteria | Status | Details |
|----------|--------|---------|
| Includes `availability_updated_at` | ✓ | Added to MCP output |
| ISO 8601 format | ✓ | Uses `.iso8601` method |
| Handles nil gracefully | ✓ | Safe navigation `&.` operator |
| Test coverage | ✓ | New test verifies both fields |
### Code Quality
**MCP Controller** (`app/controllers/api/v1/mcp_controller.rb:408-413`):
```ruby
{
name: m.name,
role: m.agent_type,
active: m.active?,
availability_status: m.availability_status, # Bonus fix
availability_updated_at: m.availability_updated_at&.iso8601, # Safe nil handling
assigned_count: m.assigned_tickets.where(status: %w[in_progress pending_audit]).count
}
```
- ✓ Safe navigation `&.` prevents errors if field is nil
- ✓ ISO 8601 format via Rails `.iso8601` method
- ✓ Bonus: Also added `availability_status` which was previously missing
- ✓ Updated tool description to document all output fields
### Test Coverage
New test verifies:
1. `availability_status` is included in output
2. `availability_updated_at` is included in output
3. ISO 8601 format validated with regex: `/\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}/`
**Status**: PASS_AUDIT - Ready for human approval
