feat(browser_eval): support 'chromium' browser (Linux arm64)#143
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On platforms where the only available Chrome build is Chromium (e.g. Linux arm64), the browser_eval tool couldn't be used because the browser enum only accepted chrome/firefox/webkit/msedge. @playwright/mcp accepts '--browser chromium' (it resolves to the chrome-for-testing build). Verified end-to-end against @playwright/mcp@0.0.75: started the server with '--browser chromium' and a browser_navigate call launched and loaded a page successfully. Add 'chromium' to the browser enum (tool input schema + arg type) and the manager option type; it is forwarded as '--browser chromium'. Fixes #123
feedthejim
approved these changes
Jun 1, 2026
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Problem
On platforms where the only available Chrome build is Chromium (e.g. Linux arm64, per #123),
browser_evalcan't be used — thebrowserenum only acceptedchrome | firefox | webkit | msedge.Fix
Add
chromiumto thebrowserenum (tool input schema + arg type) and the manager option type. It's forwarded to Playwright MCP as--browser chromium.Verification (end-to-end, not just types)
Tested against the real
@playwright/mcp@0.0.75(current@latest) via MCP:--browser chromiumis recognized → resolves to thechrome-for-testingbuild.--browser chromiumand issued abrowser_navigatecall → launched and loaded the page successfully (isError: undefined).Plus:
pnpm typecheck✅pnpm build✅pnpm test✅ (38/38).Fixes #123