Cross-Modal Review

Convention: see conventions/cross-modal.yaml for the review pairs and refusal routing chain.

Relationship to gbrain eval cross-modal: This skill is the manual mid-flow gate (one model reviews work product before commit, with refusal routing). The gbrain eval cross-modal command (v0.27.x) is a sibling surface: 3 different-provider frontier models score-and-iterate on a documented dimension list before tests cement behavior. Use this skill for ad-hoc second opinions; use gbrain eval cross-modal for the skillify Phase 3 quality gate. The two are complementary, not redundant.

Contract

This skill guarantees:

• Work product is reviewed by a different model before finalizing.
• The review is graded against the originating skill's Contract section (what was promised), not vibes.
• Agreement and disagreement are reported transparently.
• Refusal from one model triggers a silent switch to the next in chain.
• The user always makes the final decision (user sovereignty).

When to invoke (v0.25.1 gating)

Invoke this skill when:

• Significant code changes — any commit touching 5+ files or…