Using with TCA

The Composable Architecture organises Swift apps into feature modules — each module owns its @Reducer, View, and @DependencyClient. The key architectural rule: features are peers and must not import each other. Only the root AppFeature composer imports child features.

SolidLikeARock enforces this with the isolatePeers: true layer flag. New here? Start with the README.

Three steps to adopt

1. Generate a TCA-aware config:

solid-like-a-rock init --tca .

init --tca scans your project, groups modules into Models / Dependencies / Features / App layers by naming convention and @Reducer / @DependencyClient content, and generates a .solid.yml with isolatePeers: true on the right layers. Re-run with --force when you add feature modules.

2. Review and adjust the generated config (rename layers, fix any unclassified modules).

3. Run the linter:

solid-like-a-rock --config .solid.yml Sources

A peer violation looks like this:

Sources/LoginFeature/LoginFeature.swift:3: error: SolidLikeARock: layer 'Features' has isolatePeers enabled — must not import peer module 'CounterFeature'

A ready-to-use config template is at examples/tca.solid.yml.