Ikaria Server Schema Constraints

Use this skill for backend schema/table changes under bins/server.

Schema change checklist

• •Owning IDs must be u64 with #[auto_inc], except user identity fields that intentionally use Identity.
• •Reuse shared constants/enums from sdks/shared (world level baseline, direction, skill) instead of redefining them locally.
• •Keep domain-specific types in the domain module types.rs.
• •When requirements say to defer a feature, do not add out-of-scope tables or related server wiring.
• •Run event-system compatibility checks for table/field changes that affect emitted events or event consumers.

Validation before finalize

• •Confirm table definitions match reducer/service expectations.
• •Confirm shared imports resolve from ikaria-shared.
• •Confirm no deferred feature tables were introduced.
• •Confirm event payloads/subscriptions remain compatible after schema updates.