Stark
Multi-platform UI/UX router with real state-coverage rigor and working DTCG token export scripts.
Test report
- Verdict
- Tested · Works
- Score
- Tested
- Jul 15, 2026
- Environment
- Claude Code 2.x (agent harness)
- Upstream re-checked
- Jul 16, 2026
⚠ This skill is no longer available upstream. Our re-check on Aug 10, 2026 couldn't find it any more (SKILL.md not found in repo tree). The test below is what we measured on Jul 15, 2026 and we're leaving it up as a record — but there is nothing left to install, so we've removed the command.
Ran the bundled scripts for real: token_export.py turned a sample DTCG JSON into a valid Tailwind v4 @theme CSS block, and detect_platform.py correctly classified a Win11/Mica request as windows and a Compose Material 3 request as android. The UX route produced a 7-state coverage matrix and a named activation-onboarding pattern (with its specific drop-off failure mode) that a plain baseline answer never included.
Scored on four weighted criteria — install, triggering, output vs. baseline, docs. How scoring works
- Installs cleanly 5/5
- Triggers reliably 5/5
- Output vs. baseline 8/10
- Docs & honesty 5/5
What Stark does
A UI/UX design plugin that routes requests to platform-specific skills (web, Windows, Apple, Android, cross-platform) and a UX-flow skill before any code is written, enforcing state coverage (empty/loading/error/permission/success/long-running), named UX/UI patterns, and anti-generic-AI-UI checks. Triggers on UI/UX, product-flow, onboarding, checkout, dashboard, design-audit, design-token, or platform-specific (SwiftUI/WinUI/Compose/Tailwind) requests.
How to install Stark
Nothing to install: the source repository no longer has this skill. If the author brings it back, our daily re-check will pick it up and the command will reappear here.
Commands — how to trigger Stark
-
/starkMulti-platform UI/UX router with real state-coverage rigor and working DTCG token export scripts.
It also activates on plain-language prompts like these:
-
Design the onboarding flow for my SaaS app's first-time users -
Build a checkout screen for iOS using SwiftUI with proper states -
Export these design tokens into a Tailwind v4 theme file
Frequently asked questions
- Is the Stark skill free?
- Yes. The skill itself is free from f0d010c/stark. SkillProof publishes the install command and an independent test verdict at no cost.
- Does Stark work with Claude Code?
- We tested it with Claude Code 2.x (agent harness) on Jul 15, 2026. Verdict: Tested · Works. Ran the bundled scripts for real: token_export.py turned a sample DTCG JSON into a valid Tailwind v4 @theme CSS block, and detect_platform.py correctly classified a Win11/Mica request as windows and a Compose Material 3 request as android. The UX route produced a 7-state coverage matrix and a named activation-onboarding pattern (with its specific drop-off failure mode) that a plain baseline answer never included.
- What is the Stark SkillProof Score?
- 9.2/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 8/10, docs & honesty 5/5.
- How do I install Stark?
- Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
- Can I use Stark with Cursor, Copilot, Gemini CLI, Codex or other AI tools?
- The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.