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Axiom Xctrace Ref

If you're doing automated profiling with Xcode's Instruments or need to collect performance traces in CI/CD without spinning up the GUI, this is your reference. It covers xctrace, the command line tool that powers Instruments.app, with practical examples for CPU profiling, headless trace collection, and XML export for programmatic analysis. The skill targets Xcode 12+ environments and was tested with Xcode 26.2. It's part of charleswiltgen's axiom collection, which has picked up solid traction with 945 stars and 176 installs. Straightforward documentation for a tool that's powerful but not exactly well documented by Apple.

skills.sh installs
172
GitHub stars
1.3K
last updated
Aug 21, 2026

Install

$ npx -y skills add charleswiltgen/axiom --skill axiom-xctrace-ref --agent claude-code

Installs into .claude/skills of the current project.

Files

If you're doing automated profiling with Xcode's Instruments or need to collect performance traces in CI/CD without spinning up the GUI, this is your reference. It covers xctrace, the command line tool that powers Instruments.app, with practical examples for CPU profiling, headless trace collection, and XML export for programmatic analysis. The skill targets Xcode 12+ environments and was tested with Xcode 26.2. It's part of charleswiltgen's axiom collection, which has picked up solid traction with 945 stars and 176 installs. Straightforward documentation for a tool that's powerful but not exactly well documented by Apple.

Browse the repository on GitHub

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Details

Repository
github.com/charleswiltgen/axiom
Categories
DevOps & CI/CD, Debugging, CLI & Terminal
First seen
Jun 3, 2026

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