Open-source tools that keep AI coding agents on track: on your design system, on your docs, and on what a person signed off.
| Project | What it does |
|---|---|
| onsystem |
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. Claude Code plugin, MCP server, ESLint plugin and GitHub Action. Docs · npm |
| ondocs |
Open-source Ask AI for your docs, with an MCP server for agents: cited answers on your own model key, from one static index built with your site. No vector database. Docs · npm |
| signoff‑ui |
Review what your agent changed and approve what it may do: React components for multi-file diff review and tool approvals, for AI SDK 6 & 7, AG-UI and ACP agents. Docs · npm |
Built and maintained by Diogo Esteves in Lisbon. Issues and pull requests are welcome in each project's repository.