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Design System Compliance Check

Reads computed styles in the running app to catch hardcoded colors, off-palette backgrounds, unclickable controls, and animations that never ran.

Design & UIIntermediate★ 1,288⑂ 238AI score 9/10Last updated: Oct 30, 2026

What it does

Source code tells you what a component asks for; only the running page tells you what the browser resolved. This skill uses Reticle to inspect computed styles live and compare them to the project's declared design tokens.

  • offTheme flags opaque colors matching no token in the palette — a real violation
  • colorTokens/backgroundTokens list every token matching the resolved color; empty means off-palette
  • tokenCount of 0 means the app declares no palette, so it reports that instead of a fake pass
  • occluded, box of 0×0, opacity, cursor catch controls that render but cannot be used
  • reticle_animations reveals animations that never ran or whose duration is off-spec
  • Every violation is reported as a file:line location, not an opinion

Who it's for

  • Teams with design tokens or a theme system but no automated check that code follows it
  • Frontend developers, design engineers, and anyone running design reviews
  • Anyone dealing with UI that "looks slightly off but nobody can say why"

Examples

  1. After restyling a button: report Button.tsx:42 — background #3b82f6 matches no token; palette has --color-primary at #2563eb.
  2. After adding dark mode: verify themeScope is .dark and find elements the dark scope never applied to.
  3. After adding a modal entrance animation: if it is absent from reticle_animations, it never ran.

· · · Install guide · · ·

Try it now, no install

Paste this into Claude to use the skill without installing anything.

Read the instructions in this file and follow them to help me:
https://raw.githubusercontent.com/reticlehq/reticle/HEAD/skills/design-system-compliance/SKILL.md

What I want: (describe your task here)

If Claude can't open the link, open it yourself and paste the contents instead.

↓ If it works for you, download the ZIP below and install it. Then it runs on its own — no pasting each time.

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
↓ Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on AI Skill Mart.
Copy the skills/design-system-compliance folder from the GitHub repo reticlehq/reticle into my ~/.claude/skills/design-system-compliance/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/reticlehq/reticle.git /tmp/reticle && mkdir -p ~/.claude/skills && cp -r /tmp/reticle/skills/design-system-compliance ~/.claude/skills/

⚠ This is a third-party skill. Check the source repository before installing.

  1. Open a terminal.
  2. Clone the repository: git clone https://github.com/reticlehq/reticle.git
  3. Copy the skill into Claude's skills folder: mkdir -p ~/.claude/skills && cp -r reticle/skills/design-system-compliance ~/.claude/skills/
  4. Initialize the Reticle MCP server: RETICLE_INSTALL_SOURCE=npx_skill npx @reticlehq/server@latest init
  5. Follow the repo's install-and-verify skill to confirm the setup works.
  6. Start the web app you want to check (e.g. npm run dev), restart Claude Code, then ask: "check whether this component follows our design system".
View source on GitHub ↗License: NOASSERTION