phase

phase scans JavaScript, TypeScript, and CSS for animation and rendering performance findings. Findings identify source locations that need review; they are not confirmed defects.

Scan committed files changed since the merge base with origin/main:

npx phase scan --diff origin/main

Or scan explicit files and directories:

npx phase scan src components/animated-card.tsx

Explain a reported signal and its recommended fix:

npx phase explain setstate-in-raf

Run npx phase --help for all scan, baseline, filter, and output options.

Read the full documentation, review the changelog, or see the MIT license.