IOS Trace

Agent-native runbook for evidence-based profiling and optimization of native iOS and iPadOS apps with xctrace and Xcode Instruments on physical devices or simulators. Use for CPU or battery use, memory growth or Jetsam, UI hitches, slow launch, concurrency stalls, audio glitches, or network activity. Choose instruments and workload reproduction to fit the issue; bundled scripts are optional helpers.

9 stars 1 forksMobile Development

Install

skills CLI (Claude Code, Cursor, Codex and more)

npx skills add kmgcc/iOS-Trace --skill ios-trace

Manual install

git clone --depth 1 https://github.com/kmgcc/iOS-Trace.git /tmp/iOS-Trace
mkdir -p ~/.claude/skills
cp -r /tmp/iOS-Trace/. ~/.claude/skills/ios-trace

Personal skills live in ~/.claude/skills. Use .claude/skills in a project folder to share a skill with your team.

From the SKILL.md

# iOS-Trace

An agent-native runbook for investigating performance in native iOS and iPadOS apps. Choose tools and reproduction paths based on the reported symptom, device capabilities, and repository instructions. `xctrace` and Instruments provide the measurements; the GUI and CLI are both useful. Bundled scripts are optional helpers for repeatable exports and comparisons, not a required workflow.

## Runbook

1. **Understand the report.** Identify the affected app, user-visible symptom, reproduction steps, target OS/device class, and what evidence would show improvement. Ask only for missing details that materially affect the measurement. Do not impose generic numeric targets or assume every report needs code changes.
2. **Inspect the target and toolchain.** Read repository instructions. Check active Xcode and `xctrace` versions, installed templates, target OS, device/simulator availability, build configuration, app process/bundle identity, and permissions. Use `xcrun xctrace list devices` to distinguish available devices from offline ones. Follow repository device, signing, and test rules.

Read the full skill on GitHub

Details

Skill name: ios-trace
Repository: kmgcc/iOS-Trace
License: MIT
Repo updated: 28 September 2026

FAQ

What does the IOS Trace skill do?

How do I install the IOS Trace skill?

skills CLI (Claude Code, Cursor, Codex and more): npx skills add kmgcc/iOS-Trace --skill ios-trace. Skills go in ~/.claude/skills (personal) or .claude/skills (project), and Claude loads them automatically when a task matches the description.

Is IOS Trace popular?

It lives in kmgcc/iOS-Trace, which has 9 GitHub stars and 1 forks.

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