# Appendix I: Webhooks & Event Notifications

# Webhooks

## Supported Events
- agent.created, agent.updated, agent.deleted
- contact.created, contact.updated, contact.deleted
- lead.created, lead.updated, lead.deleted, lead.qualified, lead.lost
- development.created, development.updated, development.deleted

## Payload Format
```json
{
  "event_id": "evt_123",
  "event_type": "agent.created",
  "timestamp": "2024-09-17T14:50:00Z",
  "resource": {"type": "agent", "id": 123},
  "data": {...}
}
```

## Security
- Verify HMAC-SHA256 signature
- Check timestamp (within 5 minutes)
- Queue events for async processing
- Implement idempotency checking