Onsystem MCP Server

by dgesteves• 165•• Scanned•Claim this listing•Request removal
Design & Mediaaccessibilityagent guardrailsai agentsclaude codeclaude code plugin

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.

Onsystem is an open-source mcp server by dgesteves, written mainly in TypeScript, with 165 GitHub stars and the MIT license. Its code was last updated Oct 30, 2026.

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