onsystem
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onsystem checks agent-written React against your real components and tokens: palette colors, native elements and APIs your design system lacks, at every edit and pull request, with the fix. MCP server, Claude Code plugin, ESLint plugin and GitHub Action. MIT.
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PH · launched Oct 23, 2026 · 3 upvotes (top 10%)
- Horizontal
- Dev tools
- Developer
- AI-native
- Commercial product
- Open Source
- Developer Tools
- Artificial Intelligence
- GitHub
Similar launches
See all 263 similar launches →Could you build this?
Yes It is a static-analysis linter that checks React code against design-token and component inventories, packaged as an ESLint plugin, MCP server, and GitHub Action, all standard developer-tool formats.
Competitors
Other products that read as similar to this one : 263 launches clear the similarity bar, closest 8 shown.
Attention rank: #48 of 264 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 348 days after the earliest competitor.
- Agentry · hn · 2025-12-09 · 10 upvotes · similarity 0.49
- Ceraph · ph · 2026-09-28 · 1 upvotes · similarity 0.46
- CSS Studio. Design by hand, code by agent · hn · 2026-04-09 · 175 upvotes · similarity 0.45
- Varelyo · ph · 2026-09-17 · 11 upvotes · similarity 0.43
- React Doctor · ph · 2026-10-28 · 2 upvotes · similarity 0.43
- Ultracite v8 · ph · 2026-10-17 · 110 upvotes · similarity 0.40
- Huddlekit · ph · 2026-10-13 · 8 upvotes · similarity 0.40
- ilse · ph · 2026-10-30 · 91 upvotes · similarity 0.40
Other launches for this product
- No other launches for this product.