Muspelheim Claude Roaster
- 1 repo stars
- Updated February 3, 2026
- muspelheim/claude-roaster
muspelheim-claude-roaster is a Claude Code plugin that brutally critiques UI/UX from screenshots and browser captures with multi-perspective analysis.
About
muspelheim-claude-roaster is a Claude Code plugin that runs a deliberately harsh UI/UX roasting agent on your interfaces. developers install it when polite design feedback fails to surface confusion, weak hierarchy, or trust-killing details before users do. The plugin supports uploaded screenshots and Playwright-driven captures, with catalog keywords pointing at multiperspective critique, manual runs, and Xcode-flavored mobile UI review—useful across Validate when comparing prototype directions and Ship when doing final visual and UX passes. It is beginner-friendly to invoke (bring a screenshot, ask for the roast) but advanced in the density of critique you must act on. This is not component codegen or a Figma MCP; it is an opinionated design reviewer living inside your agent session. Register the plugin, attach evidence of the UI, and treat the output as a punchy checklist of fixes before distribution or App Store submission.
- Brutal, no-mercy UI/UX roasting persona with multi-perspective analysis
- Screenshot upload workflow plus Playwright-oriented capture support
- Manual and agent-driven critique modes for web and product surfaces
- Xcode-related upload path for mobile UI review contexts
- Single-plugin bundle focused on design roast, not generic code lint
Muspelheim Claude Roaster by the numbers
- Data as of Jul 7, 2026 (Skillselion catalog sync)
/plugin install muspelheim-claude-roaster@muspelheim/claude-roasterAdd your badge
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| repo stars | ★ 1 |
|---|---|
| Last updated | February 3, 2026 |
| Repository | muspelheim/claude-roaster ↗ |
What it does
Get blunt, multi-angle UI/UX critique from screenshots or browser captures before you ship landing pages, web apps, or Xcode-backed mobile UI.
Who is it for?
Best when you want unfiltered UX critique on landing pages, dashboards, or mobile UI before launch.
Skip if: Skip if you need gentle stakeholder-safe copy, pure accessibility audits, or automated visual regression only.
What you get
After install, you get direct, multi-angle UI/UX roasts on screenshots or Playwright captures so you can fix issues before shipping.
- Multi-perspective brutal UI/UX critique document
- Prioritized usability and visual hierarchy fix list
- Pre-ship confidence check on key flows shown in captures
By the numbers
- Repository: muspelheim/claude-roaster
- Plugin count: 1
- Catalog category: productivity
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Opinionated UX critique agent, not a design-to-code generator or analytics dashboard.
FAQ
Who is Muspelheim Claude Roaster for?
Developers and designers who want a blunt second opinion on UI/UX before users see the product.
When should I use Muspelheim Claude Roaster?
Use it after you have a screenshot or browser capture of a screen you are about to ship or pitch, when you need actionable UX fixes fast.
How do I add Muspelheim Claude Roaster to my agent?
Install the muspelheim/claude-roaster plugin in Claude Code, enable it in your session, and provide screenshots or Playwright captures for the roaster agent.