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From Build Swift Apps
Benchmarks Xcode builds (clean, cached-clean, zero-change, incremental) with repeatable inputs and timing artifacts. Use before recommending build-time optimizations.
npx claudepluginhub xopoko/build-swift-apps --plugin build-swift-appsHow this skill is triggered — by the user, by Claude, or both
Slash command
/build-swift-apps:xcode-build-baselineThe summary Claude sees in its skill listing — used to decide when to auto-load this skill
Measure before recommending build-time changes. Do not edit project files while benchmarking.
Benchmarks Xcode clean/incremental builds with repeatable timings, summaries, and .build-benchmark/ artifacts for performance baselines and change comparisons.
Benchmarks Xcode builds, runs specialist analyses, prioritizes wall-clock findings, requests approval, delegates fixes, and re-benchmarks for build optimization audits.
Guides Xcode build workflows for iOS projects using execute_xcode_command tool. Covers builds, tests, cleans, schemes, xcodebuild output interpretation, and error troubleshooting.
Share bugs, ideas, or general feedback.
Measure before recommending build-time changes. Do not edit project files while benchmarking.
.build-benchmark/.OS=latest only when Xcode accepts it.exclude: directories such as __Snapshots__ before dependency resolution, or SPM can crash.Infer or ask for workspace/project, scheme, configuration, destination, simulator/device preference, custom DerivedData needs, and a representative Swift file for incremental touch tests.
COMPILATION_CACHE_ENABLE_CACHING = YES, run 3 cached-clean builds; use --no-cached-clean only when intentionally skipped.--touch-file; this measures fixed overhead from dependency planning, scripts, codesign, validation, and related phases.--touch-file path/to/SomeFile.swift.Preferred helper:
python3 ../../shared/build-optimization/scripts/benchmark_builds.py \
--workspace App.xcworkspace \
--scheme MyApp \
--configuration Debug \
--destination "platform=iOS Simulator,name=<latest available iPhone simulator>,OS=latest" \
--output-dir .build-benchmark
If the helper is unavailable, run equivalent xcodebuild commands with -showBuildTimingSummary and keep raw output.
Return clean, cached-clean when enabled, zero-change, and touched-incremental medians/min/max; biggest timing categories; environment details; artifact path; and noise caveats.
If the user only requested measurement, stop there. For optimization, hand the artifact to the relevant skill: xcode-compile-profiler, xcode-project-auditor, swiftpm-build-inspector, or xcode-build-strategist.
references/benchmarking-workflow.md../../shared/build-optimization/references/benchmark-artifacts.md../../shared/build-optimization/schemas/build-benchmark.schema.json