Individual skill

kotlin-tooling-native-build-performance

Diagnoses and fixes slow Kotlin/Native compilation and linking in Kotlin Multiplatform projects that target iOS. Use when the user reports slow iOS or shared-framework builds, long linkDebug*/linkRelease* or XCFramework tasks, cold CI builds that re-download the Kotlin/Native toolchain, KSP or other generated code on the native path, transitiveExport usage, or asks for a local-development versus CI build performance plan.

skills/kotlin-tooling-native-build-performance/SKILL.md

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Last checked: Nov 10, 2026

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Repository stars (not skill ratings): 1,113
Repository last updated: Oct 30, 2026
License: Apache-2.0

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kotlin Repository topic
skills Repository topic
engineering Derived category

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SKILL.mdcore · 7,954 bytes
SKILL.mdcore · 7,954 bytes
evals/EVALUATION.mddoc · 1,562 bytes
references/artifacts-and-targets.mddoc · 2,143 bytes
references/caching-and-gradle.mddoc · 2,682 bytes
references/experimental.mddoc · 1,193 bytes
references/exports-and-generated-code.mddoc · 1,553 bytes
scripts/audit-native-build.shruns · 6,155 bytes

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# Kotlin/Native Build Performance

Turn "the iOS build is slow" into a measured diagnosis and a small set of safe
fixes. Two rules apply throughout:

1. Never trade away required release behavior. A faster local loop must not
   change what CI publishes.
2. Measure before and after with the same command and the same build state.
   An unmeasured fix is a guess.

## Step 0: Classify the Slow Scenario

Establish four facts before editing anything: **where** (local or CI),
**what** (debug feedback loop or release/distribution artifact), **state**