# Platform Validation Rules - API handlers must use named DTOs from `platform/dto`. - Platform services must not accept raw plugin-provided host paths. - AI provider secrets must be stored by reference and redacted from logs, audit, and plugin bridge responses. - Game management plugin installation must validate manifest identity, server type, required run capabilities, pages, permissions, and schema references. - Server instance creation must validate plugin installation state and run endpoint capability compatibility. - `platform/validator/resources.go` validates required IDs, enum values, AI key-reference shape, bounded progress/audit summaries, artifact metadata, log stream cursors, and run capability compatibility. - `platform/service.Core` must call validators before repository writes and must reject server creation when the plugin is not installed, the run endpoint is disabled/offline, or required run capabilities are missing. - Job creation must require an idempotency key and return the existing job for duplicate `(runEndpointId, idempotencyKey)` pairs.