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I find the official Chrome DevTools MCP excellent for this. Lighter than Playwright, the loop is shorter, and easy to jam into Electron too.

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chrome devtools mcp really clutters your context. Playwright-cli (not mcp) is so much more efficient.

Chrome Devtools MCP now has an (experimental) CLI as well and can produce neat things like Lighthouse Audits.

https://github.com/ChromeDevTools/chrome-devtools-mcp/pull/1...

I've only used it a bit, but it's working well so far.

cool! needs to mature a bit, session sharing is a no-go for me as I need to run requests in parallel and it would interfere with each other.

DevTools MCP is great for live debugging in the moment. ProofShot is more about generating a proof bundle after the fact, something you can review on a PR without having been there when the agent ran. Different use cases I think.

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