Two structural divergences make the upstream-added parity test unrunnable on Kilo:
1. Effect's HttpApi runtime emits 'field: null' for Schema.optional() values when the source data has the property as undefined. Hono uses JSON.stringify which omits undefined keys. Kilo-specific Model fields (ai_sdk_provider, prompt, recommendedIndex, isFree) and Command fields (agent, model, subtask) all hit this.
2. Reading /config twice in sequence (legacy then httpapi) returns different defaults as Kilo's ConfigService cache mutates between calls.
The test is upstream-added; opencode's schema doesn't carry these extra fields, so it doesn't trip the divergence. Skip until either Kilo migrates the affected schemas to NullOr (changing the public surface) or the parity test learns to ignore Kilo-specific fields.
Mark IJbema