browser-javascript-profiling - Profile browser JavaScript performance with Chrome DevTools
Profiles browser-page JavaScript loads, interactions, rendering, and memory with Chrome DevTools.
Tags
Updated: 2026-10-16Capabilities
Typical Inputs
Typical Outputs
What this skill does
- Capture browser performance traces
- Profile page loads
- Profile runtime interactions
- Analyze rendering jank
- Inspect memory snapshots
- Measure allocation timelines
- Compare performance runs
- Summarize trace evidence
Inputs
- Target URL
- Interaction scenario
- Viewport settings
- Device emulation
- Input sequence
- Test dataset
- Build and source maps
- Cache state
- Throttling settings
- Readiness condition
Outputs
- Performance trace data
- Timing evidence
- Memory analysis evidence
- Profiling summary
- Diagnostic findings
Requirements
- Chrome browser
- Chrome DevTools
- Browser page access
- CDP session support
- Puppeteer page access for automated capture