onsystem

Catches palette colors, native elements and APIs your design system lacks in agent-written React.

What does this entry provide?

onsystem is an MCP server entry in ChatHome Skills, sourced from Official MCP Registry and scored 78/100. As a Model Context Protocol server, it exposes tools that MCP-compatible LLM clients such as Claude, Cursor, and Copilot can call directly, extending an agent's reach beyond its built-in capabilities. ChatHome Skills discovered this entry through its daily ingest of official registries and GitHub discovery queries, and re-verifies repository facts, freshness signals, and install metadata on every run. The quality score weighs official-registry presence, a working install command, license clarity, GitHub star trajectory, and repository freshness — the full formula is on the Sources page. The install command above is ready to copy. Review the last-pushed date and repository status before adding onsystem to a production agent workflow; the snapshot facts below are point-in-time values from the most recent ingest.

Snapshot facts

Source: Official MCP Registry
Quality: 78/100
Install method: npm
Repo: dgesteves/onsystem
Repo updated: Oct 23, 2026

Install command

npx -y onsystem@0.10.0

Install method: npm

Review the upstream source before running this command.

GitHub project Homepage

Quality

Repo stars

Repo updated

Oct 23, 2026

How is this score calculated?

Weighted across six dimensions, scored 0-100.
Provenance (25): listed in an official or curated registry.
Installability (25): a runnable install command beats a declared transport, which beats a source checkout.
Maintenance (20): recency of the last push; archived entries score zero here.
Adoption (20): repository stars on a log curve.
Documentation (10) and description quality (10): parsed manifest or SKILL.md frontmatter, and a real description rather than a placeholder.

MCP manifest

{
  "_meta": {
    "io.modelcontextprotocol.registry/official": {
      "status": "active",
      "isLatest": true,
      "updatedAt": "2026-10-23T23:19:28.449217Z",
      "publishedAt": "2026-10-23T23:19:28.449217Z",
      "statusChangedAt": "2026-10-23T23:19:28.449217Z"
    }
  },
  "server": {
    "name": "io.github.dgesteves/onsystem",
    "icons": [
      {
        "src": "https://onsystem.vercel.app/icon.svg",
        "sizes": [
          "any"
        ],
        "mimeType": "image/svg+xml"
      },
      {
        "src": "https://onsystem.vercel.app/apple-icon.png",
        "sizes": [
          "180x180"
        ],
        "mimeType": "image/png"
      }
    ],
    "title": "onsystem",
    "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
    "version": "0.10.0",
    "packages": [
      {
        "version": "0.10.0",
        "transport": {
          "type": "stdio"
        },
        "identifier": "onsystem",
        "registryType": "npm"
      }
    ],
    "repository": {
      "url": "https://github.com/dgesteves/onsystem",
      "source": "github"
    },
    "websiteUrl": "https://onsystem.vercel.app",
    "description": "Catches palette colors, native elements and APIs your design system lacks in agent-written React."
  }
}

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