Claude Code skill that diagnoses real PageSpeed Insights / Core Web Vitals problems (slow LCP, high TBT, poor CLS) on a live URL — works with or without an API key, on any site or framework.
What is the tushar33/pagespeed-debugger GitHub project? Description: "Claude Code skill that diagnoses real PageSpeed Insights / Core Web Vitals problems (slow LCP, high TBT, poor CLS) on a live URL — works with or without an API key, on any site or framework.". Written in JavaScript. Explain what it does, its main use cases, key features, and who would benefit from using it.
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