Hey everyone,
React performance optimization can be a massive headache. Profiling components, chasing down accidental re-renders, and hunting for memory leaks usually requires opening up DevTools and digging through deep flame graphs.
I wanted something faster and more automatedācloser to how ESLint catches syntax bugs or SonarQube catches code smell, but explicitly focused on React performance bottlenecks.
So, I built @prism-guard/cli. Itās completely open-source, has zero dependencies, and weighs in at just 5kb.
What does it actually do?
Think of it as a static and runtime analysis hybrid for your component architecture. It scans your React project to answer:
Where are your most expensive component trees?
Which hooks are triggering unnecessary updates?
Are there unoptimized asset pipelines slowing down your initial render?
Instead of massive HTML reports, it gives you actionable, line-by-line feedback right in your terminal.
Quick Start
You don't even need to install it permanently. You can audit your project right now by running:
npx @prism-guard/cli analyze
Why I made it 5kb
I'm incredibly tired of "lightweight" dev tools that pull in 40MB of ā node_modulesā . I wrote this with zero external dependencies so it runs instantly in your local workflow or as a quick check in your CI/CD pipeline without bloating your build times.
Source Code & Contributing
The project is entirely open source. Iām really looking for feedback from the community:
Are the terminal error messages clear enough?
What specific React performance metrics do you wish it tracked?
Check out the repo here:
https://www.npmjs.com/package/@prism-guard/cli