GitHub Actions macOS Runner No Space Left

When a macOS CI job fails with `No space left on device`, the fix should be a repeatable runner policy, not a random cleanup command pasted into every workflow.

SafeDisk Lite local scan

Download the Mac app and scan in this same page.

The website alone cannot read Mac folders. SafeDisk Lite adds the local permission bridge, then this web UI shows the largest visible buckets and one optional cleanup candidate.

Download Mac beta Preview CI policy

Common high-risk sources

Xcode DerivedData, ModuleCache.noindex, and build intermediates
Unused simulator runtimes, unavailable devices, and DeviceSupport folders
Homebrew, npm, pnpm, CocoaPods, SwiftPM, Gradle, and toolchain caches
Large test artifacts, screenshots, videos, archives, and logs

Safer CI cleanup order

Print disk usage before cleanup so failures are diagnosable.
Remove workflow-local build output and dependency caches with the owning tool first.
Clean Xcode DerivedData and ModuleCache only after the job no longer needs those artifacts.
Review simulator runtime deletion separately; deleting the wrong runtime can break later jobs.
Print disk usage after cleanup and keep the numbers in the build log.

Starter commands

df -h
du -sh ~/Library/Developer/Xcode/DerivedData 2>/dev/null || true
du -sh ~/Library/Developer/CoreSimulator 2>/dev/null || true
du -sh ~/Library/Caches 2>/dev/null || true
xcrun simctl delete unavailable || true

Turn this into a runner cleanup plan

The $29 Deep Cleanup reviews one representative scan or CI log and returns a safe/review/do-not-touch cleanup plan for your macOS build environment.

Download Mac beta See sample result

Deep Cleanup

Need a cleanup order for this runner?

Submit the form first; the failing job link can follow. We check whether free guidance is enough before asking for the $29 Deep Cleanup.