Agent skill

Mobile Performance Profiling

Mobile app performance analysis and optimization

a5c-aigithub.com/a5c-aiGitHub ↗
claude-codecodexMIT
Install
npx skills add a5c-ai/babysitter --skill mobile-perf --agent claude-code

Same command for any agent — swap --agent for codex, cursor, copilot.

Facts
Files in the skill folder: 2
SKILL.md size: 7 KB
Bundled scripts: none
Version: 1.0.0
Path: library/specializations/mobile-development/skills/mobile-perf/SKILL.md
Open the folder on GitHub →
Where it comes from
Stars: 1,642
Language: JavaScript

Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.

From the SKILL.md

# Mobile Performance Profiling Skill ## Overview This skill provides mobile app performance analysis and optimization capabilities. It enables profiling with Xcode Instruments, Android Profiler, Flipper, and Flutter DevTools to identify and fix performance issues. ## Allowed Tools - `bash` - Execute profiling tools and build commands - `read` - Analyze performance reports and profiles - `write` - Generate optimization configurations - `edit` - Update performance-related code - `glob` - Search for performance files - `grep` - Search for patterns ## Capabilities ### Xcode Instruments 1. **Time Profiler** - Profile CPU usage - Identify hot paths - Analyze call trees - Measure function durations 2. **Allocations** - Track memory allocations - Identify memory leaks - Analyze retain cycles - Monitor heap growth 3. **Core Animation** - Profile rendering performance - Identify offscreen renders - Measure frame rates - Detect layer issues ### Android Profiler 4. **CPU Profiler** - Record method traces - Analyze thread activity - Identify CPU bottlenecks - Profile startup time 5. **Memory Profiler** - Track allocations - Capture heap dumps - Identify memory leaks - Analyze GC events 6. **Net

What's inside
Steps it walks through
  1. Overview
  2. Allowed Tools
  3. Capabilities
  4. Xcode Instruments
  5. Android Profiler
  6. React Native
  7. Flutter DevTools
  8. Metrics
  9. Target Processes
  10. Dependencies
  11. Usage Examples
  12. Instruments Command Line
  13. Android Profiler Commands
  14. React Native Performance Optimization
Ships with 1 file
  • README.md
Commands it runs
Record Time Profiler trace
xcrun xctrace record --device "iPhone 15 Pro" \
Export trace data
xcrun xctrace export --input ~/Desktop/profile.trace \
Capture CPU trace
adb shell am profile start com.example.myapp /data/local/tmp/profile.trace
Stop and pull trace
adb shell am profile stop com.example.myapp
adb pull /data/local/tmp/profile.trace ./profile.trace
Capture heap dump
More from babysitter
All skills →
About this skill
What does the Mobile Performance Profiling skill do?

Mobile app performance analysis and optimization

How do I install it?

Run `npx skills add a5c-ai/babysitter --skill mobile-perf --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.

Where does this skill come from?

From a5c-ai/babysitter, a repository with 1,642 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.

Is a popular skill a good skill?

Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.

Keep going