argent-react-native-profiler
Find slow renders in your React Native app.
What it does
Measures React Native app performance and produces findings on slow renders and CPU hotspots, with before-and-after checks when fixes are applied.
When to use it
Use when investigating performance problems, diagnosing re-renders or CPU hotspots, or measuring the effect of a fix.
How to use it
Give it a React Native Hermes app to profile; it presents performance findings and asks whether to investigate further, implement fixes, or stop.
What you provide
- An existing project
Good to know
- acts without asking
What you need · 5
The React Native app being profiled must use Hermes.
Requires a simulator for profiling; physical iPhones are not supported.
Requires this skill to record a reproducible e2e test before the first profiling run when profiling needs a specific interaction sequence.
Access · 1
This skill
/tmp/argent-profiler-cwd/
Saves raw profiling sessions