Production Checklist

Before launch, confirm at least the following:

Security

• DOWNCITY_FEDERATION_ADMIN_SECRET_KEY exists only in trusted environments.
• Clients only receive user_token, not provider keys.
• DOWNCITY_FEDERATION_TOKEN_SIGNING_KEY is configured in City.
• Admin env endpoints only accept trusted requests.

Stability

• Every service that should be exposed has been registered through base.use(service).
• AI models have been registered through Provider.model() + AIService.use() and include the required actions.
• Critical provider env values have been configured.
• The city table uses an explicit database URL.
• before hooks block over-quota users.
• after hooks record usage and error clues.

Multi-city setup

• city_id clearly separates cities.
• Usage records include city_id, user_id, and model.
• Different cities have default quota strategies.

Rollback

• Provider keys can be rotated quickly.
• Model definitions can be paused or replaced quickly through code deployment.
• Service errors are captured by onError or your logging system.