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wrsilvawrsilva/reis-mobile/skills/mobile-kmp/SKILL.md

mobile-kmp

Skill8 starsChanged 59 days agoMITView on GitHub

Works on Kotlin Multiplatform mobile projects with shared Kotlin source sets and Android/iOS targets. Use for architecture, tests, debugging, reviews, performance, security, accessibility, dependencies and releases when `org.jetbrains.kotlin.multiplatform` is applied; inspect actual targets, `commonMain`/`commonTest`, target source sets, Compose Multiplatform and the iOS framework/host app before giving platform advice.

The file

We split this skill into the rules it gives an agent

2 rules. About 0 are common, 0 are distinctive, and 2 are very specific to this project.

  • ≈0

    Common · estimate

    Many files like this have a rule of this kind.

  • ≈0

    Distinctive · estimate

    This author's own choices. Worth a look.

  • 2

    Very specific

    Tied to their project's names, files or tools. Probably skip.

  • Common
  • Distinctive
  • Very specific
  1. Very specific:

    Read settings.gradle.kts, the affected module's build.gradle.kts, version catalog and source-set directories.

    line 21
  2. Very specific:

    Use the topic skill for the requested work.

    line 24

≈ “Common” is an estimate: at least 1 in 5 of the 350,495 skill files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.

Keep what fits and drop the rest. Your version, ready for your agents.
Files
SKILL.md

Kotlin Multiplatform

KMP is a sharing mechanism, not a promise that both apps use the same UI or SDK. Resolve the module and target graph before choosing Android, iOS or shared-code guidance.

QuestionRead
Which code and dependencies can be shared?references/source-sets.md
How does shared Kotlin reach the iOS app?references/apple-interop.md
Is UI shared with Compose Multiplatform or native on each target?references/compose-ui.md
Which build, measurement or release task applies?references/build-performance.md

Ground the answer

  1. Read settings.gradle.kts, the affected module's build.gradle.kts, version catalog and source-set directories. Record the configured targets; androidMain and iosMain are not proof that a target is built in CI.
  2. Trace a real symbol from commonMain through an interface or expect declaration to each configured implementation and its Android/iOS caller. Name the module, source set and owner at every boundary. For shared Compose UI, trace its host entry too.
  3. Match validation to the changed boundary: shared Kotlin tests on configured targets, target tests for actual implementations, and host UI/device tests for behavior that crosses into Android or iOS. A JVM test is not iOS coverage.
  4. Use the topic skill for the requested work. Use mobile-android or mobile-ios only for an affected host or target-specific implementation; do not apply native-app instructions blindly to commonMain.

The Kotlin Multiplatform source-set reference defines commonMain, commonTest and target compilations. Confirm DSL and task names in the project's installed Kotlin and Gradle versions.

Interface design

For UI/UX reviews, wireframes, design systems and screen redesigns, use mobile-ui-ux and its reference for this stack. For Apple targets, also consult its Apple design workflow; validate platform claims against current official guidance and the installed toolkit.

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