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feature-arch-gate

Adversarial pass/fail review gate that enforces the feature-arch skill's React feature-based architecture rules. Use when a diff, branch, PR, or src/ tree must be judged for architecture conformance before merge — feature folder structure, import boundaries, cross-feature isolation, data-fetching, state, testing, and naming rules. A single blind reviewer renders per-rule PASS/FAIL verdicts with cited evidence, and the reviewer's structured output is the verdict fail-closed. Use the feature-arch skill itself to design or migrate an architecture; use this gate to judge whether work conforms to it.

skills/.experimental/feature-arch-gate/SKILL.md

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# 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](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).