Feature-Arch Gate

Enforce React feature-based architecture conformance — a pass/fail gate: a single blind reviewer subagent judges the work against the rules of feature-arch v1.1.0 with an adversarial mandate, and the work passes only when every rule is PASS or N/A. This skill renders verdicts; it never fixes the work.

The gate is self-sufficient: the 33 decidable rules it enforces (of the source's 43) are vendored into this skill's references/ directory as a snapshot of feature-arch v1.1.0, so a review needs nothing outside this folder. references/_rule-evidence.md records the provenance, the evidence that decides each rule, and the 10 source rules excluded as non-decidable.

When to Apply

• A PR or branch touching a feature-organized React codebase needs an architecture conformance verdict before merge.
• A migration step from a FEATURE-ARCH-TARGET.md blueprint is claimed complete and needs independent verification.
• A full src/ tree audit is requested ("does this codebase conform to feature-arch?").
• Agent-generated feature work needs a gate that is blind to the conversation that produced it.

Do NOT apply this gate to design or migrate an architecture — that is the feature-arch skill's job (it produces the blueprint; this skill judges conformance to the rules).

Review Protocol

Follow these steps exactly — the gate's value is that every review runs the same way.