rails-engine-reviewer

Review a Rails engine by inspecting namespace isolation, host integration points, initialization behavior, migrations, and dummy app coverage to identify coupling and unsafe initialization. This process prioritizes architectural risks over style comments to ensure deep host isolation checks.

Namespace isolation in Rails engines separates engine routes and models from the host app to prevent collisions and coupling. It matters because weak boundaries lead to unclear host contracts and unsafe initialization, which threaten architectural stability during integration.

Fix unsafe initialization by auditing the engine's init behavior and generator install flow to ensure safe defaults and clear host contracts. Document high-severity findings and apply mitigations that enforce deep host isolation boundaries.

Yes, a Rails engine review covers dummy app coverage and generator install flow to ensure proper integration testing. It assesses whether the dummy app accurately reflects host integration scenarios and validates the engine's installation behavior.

The best way to check engine boundaries and coupling is systematically reviewing the isolate-namespace configuration and host contracts. This identifies architectural risks and provides actionable fixes with severity ratings for clean integration.

You should avoid Rails engines when weak integration coverage and unclear host contracts outweigh architectural benefits. If the engine introduces unsafe initialization or excessive coupling that cannot be mitigated, alternative modularization approaches may be safer.