onsystem

active

Keeps coding agents on your design system: catches palette colors, native elements and APIs your system lacks, at every edit and pull request, with the fix. Set it up once in your design-system package; every app in your monorepo gets it.

Code-only MCP server: no hosted endpoint, so you install and run it yourself. It is not probed, graded or counted in our reachability statistics.

Get it

Repository: github.com/dgesteves/onsystem
Package: npm: onsystem
Run (stdio): npx -y onsystem
The usual command for this package registry; check the repository README for required settings.
License: MIT
Last update: 2026-10-30
Homepage: onsystem.vercel.app

design-system design-system-lint agent-guardrails linter lint eslint eslint-plugin react shadcn cva tailwindcss design-tokens

Listed in

npm · source

Run this server as a hosted endpoint? Submit the endpoint and it moves to the remote directory, where it is probed and graded.