Use when you need to check browser-specific CSS/layout/JS rendering differences (Chromium/Firefox/WebKit) before shipping a CSS/JS change or investigating compatibility issues across engines. NOT for viewport/breakpoint layout review (use responsive-visual-review), NOT for functional/interaction E2E testing across browsers (use playwright-testing), NOT for designing a polyfill/feature-detection fix.
66
83%
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Low-risk findings worth noting
The skill exposes the agent to untrusted, user-generated content from public third-party sources, creating a risk of indirect prompt injection. This includes browsing arbitrary URLs, reading social media posts or forum comments, and analyzing content from unknown websites.
The workflow checks cross-browser rendering using local project files, Playwright captures, and checking caniuse.com (which is reference documentation searched or checked by the agent), without ingesting outsider-submitted free text or continuous communication feeds.
caniuse.com
domain · 1 site
The skill instructs the agent to manually check caniuse.com as a reference for CSS feature support, but the plugin itself does not fetch or read from this domain at runtime.
SKILL.md
65
caniuse.com for any feature the site uses that isn't universally