Raven

Our take

A genuinely large design-knowledge server: 60+ tools spanning design principles (Nielsen, Laws of UX, WCAG), UI/content patterns, brand voice systems, design tokens, and an unusually deep audit suite — Playwright-rendered page audits, WCAG contrast with concrete fix suggestions, tap-target and typography-scale checks, responsive-visibility and video-playback verification, even SwiftUI and React Native HIG audits — plus a local 'taste profile' system that persists design-judgment rules under ~/.raven. Runs local over stdio via npx (Chromium install needed for rendered audits), no account or paid tier; solo project by a 2016-vintage GitHub account with 27 npm releases since April 2026. Two caveats: ~1,008 weekly downloads against 2 stars and 0 watchers has no visible community to explain it, so treat the popularity signal as unverified; and 60+ tools is a heavy schema load that will crowd most clients' tool budgets. For agent builders who want design review as callable, deterministic checks rather than vibes.

reviewed by hand · 2026-07-05

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Verification record

last verified

yesterday

github stars

2

last commit

yesterday

archived

no

license

MIT

npm

raven-mcp

downloads / wk

1.0k

latest version

1.15.0

in registry since

2026-05-04

github.com/rhinocap/raven-mcp