GoogleChrome/lighthouse ? reverse-engineered prompt

Build me a web auditing tool like Lighthouse that can run against any site URL and tell me how it performs, how accessible it is, and whether it follows common best practices and SEO basics.

I want it to open a page in Chrome, collect the important measurements, and then give me a clear report with a score, problem explanations, and simple suggestions for what to fix first. It should work from the browser and also from the command line so I can use it on my own or automate it in scripts.

Please include a clean HTML report view, support for JSON output too, and make it easy to add or remove audits later. If you need to look up current docs online while building it, go ahead.