Roast My Design System MCP server
Audit your Design System and serve your Agent the rules that keep AI-written UI on-system.
17 stars2.9k downloads/wk
Reviews
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If you have run it, two minutes of your experience saves the next person an afternoon.
Roast My Design System tools
No tool declarations could be read from the package source. They show once the server is installed.
Public scan report
scanner v0.1.9 · 2026-09-21 · same rubric, same numbers if you re-run it
- Code scan2 source files scanned25/25
- –Live reliabilityno gateway calls yet and no remote to proben/a
- –Tool poisoningtools not inspected (local package is not executed); not countedn/a
- Auth qualitylocal package, no credentials required12/15
- Maintenancelast push 1 days ago15/15
- Maintainer identityregistry namespace matches repository owner6/10
What the publisher says
From the Roast My Design System repository's README, as published. We do not edit it. Read it on GitHub
roast-my-design-system
Your AI can write the UI. This makes sure it writes your UI.
A free CLI tool, and a Claude Code plugin with two skills and a bundled local MCP server, that roasts your repo's design system with real data, reviews what you change against it, and generates the rules that keep your AI agent on-system.
New in 8.0: support for the four big component kits.
If your product is built on MUI, Mantine, Chakra UI or Ant Design, roast now reads it as such. It finds your theme in the repo, counts how often your components read it, and measures the two things that drift: colours and spacing written onto components when the theme already has a value.
- The kit's own code is not counted. Nor are chart colours, colour pickers, artwork, editor themes or fallbacks.
- Your own layer counts as the kit. Metabase wraps Mantine and imports the wrapper in 2,469 files. The old reading covered 14% of the product.
- A repo belongs to the kit it uses most, shadcn included.
- You are compared with products on the same kit: 19 MUI, 19 Mantine, 16 Chakra and 16 Ant Design, 70 in all. Each target comes from the tidiest third of its group.
- The fix prompts speak your kit: MUI's sx, Mantine's props, Chakra's space steps, Ant Design's theme.useToken().
Repos that used to fall through now read properly. Open-Assistant scored a false 100 and now scores 75 as a Chakra product. InvenTree and the APISIX dashboard got no score at all and now score 75 and 84.
Also in 8.0: eleven counting fixes.
The benchmark is rebuilt on them, so every score moves. Take a fresh one before you compare.
- One colour written two ways is one colour. It was counted twice and reported as a near-identical pair.
- A fallback inside var(--x, #fefefe) reads the theme. It is no longer a stray colour. Primer goes from 308 colours to 8.
- Stylesheets you did not write are left out. So are apps you have replaced, such as a web-old folder. The report lists everything left out, with file counts.
- Fix prompts start from a product file, not from your docs site.
Fleet medians are now 115 colours, 23 greys, 33 off-scale spacing values, 21 duplicated components, 51 inline style blocks, 77 bracket values, 7 near-identical pairs and 5 !important.
Shortened. The full README is on GitHub.
Nothing above is checked by us. What we check is on the safety report.
Install directly
Runs npx -y roast-my-design-system on your machine. Read the scan report first; the gateway never runs local packages.
claude mcp add roast-my-design-system -- npx -y roast-my-design-system
Roast My Design System: common questions
- Is Roast My Design System MCP server safe?
- Yes, by our scan: it is graded A (89/100). Read the Roast My Design System safety report
- How do I install Roast My Design System?
- It runs on your machine. Copy the Claude Code, Claude Desktop or Cursor config from the install section.
- Does Roast My Design System need an API key?
- Not as far as the registry entry and our scan can tell: no credentials are declared or required.
- Is Roast My Design System maintained?
- The last commit was 2 days ago (2026-09-20). The latest release is v5.2.1.
- What can I use instead of Roast My Design System?
- Servers from other publishers that do the same job: Roast My Design System MCP server, NVIDIA Elements MCP server and Agent-Native Design MCP server. Compare all Roast My Design System alternatives.
Alternatives to Roast My Design System
Same job from other publishers: the closest match first, then the best rated.
- Roast My Design SystemAudit your Design System and serve your Agent the rules that keep AI-written UI on-system.not reviewedEstablishedA
- NVIDIA ElementsNVIDIA Elements UI design system and agent tools for AI/ML, robotics, and autonomous vehicles.not reviewedEstablishedA
- Agent-Native DesignAgent-Native design tool - create and edit visual designs with agent assistancenot reviewedEstablishedA
three.ws ProvenanceAppend-only, signed, on-chain-verifiable agent action log — record and audit what agents did.not reviewedEstablishedB- Watch SkillWatch video and live sessions, keep timestamped evidence, and verify an agent's own work.not reviewedGrowingB
