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Use when auditing slow page loads, heavy assets, or rendering delays related to Use secure and up-to-date JS libraries. Verify the actual bottleneck in DevTools, Lighthouse, or field data before recommending changes.

skills/js-libraries/SKILL.md

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# Use secure and up-to-date JS libraries

Outdated or vulnerable libraries pose security risks and often include unnecessary bloat that degrades performance.

## Quick Reference

- Regularly audit dependencies for known security vulnerabilities
- Replace heavy libraries with lightweight alternatives (e.g., date-fns vs moment)
- Ensure libraries are properly versioned and served via reliable CDNs or self-hosted

## Check

Check the project's JavaScript dependencies for known vulnerabilities and outdated versions.
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