Shadcn UI
BuilderIO/agent-native
Project-aware shadcn/ui components, registry MCP, theming, and design-system lint feedback.
Quick automated lint — detects common design system violations in seconds
Install UI Lint
$ npx skills add sickn33/agentic-awesome-skills --skill ui-lint -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install sickn33/agentic-awesome-skills ui-lint --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/ui-lint .claude/skills/ui-lint && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "ui-lint" agent skill from https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/ui-lint into .claude/skills/ui-lint/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ui-lint", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/ui-lintType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add sickn33/agentic-awesome-skills --skill ui-lint -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install sickn33/agentic-awesome-skills ui-lint --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/ui-lint .agents/skills/ui-lint && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "ui-lint" agent skill from https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/ui-lint into .agents/skills/ui-lint/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ui-lint", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add sickn33/agentic-awesome-skills --skill ui-lint -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install sickn33/agentic-awesome-skills ui-lint --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/ui-lint .cursor/skills/ui-lint && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "ui-lint" agent skill from https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/ui-lint into .cursor/skills/ui-lint/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ui-lint", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/sickn33/agentic-awesome-skills.git --path skills/ui-lint--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add sickn33/agentic-awesome-skills --skill ui-lint -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install sickn33/agentic-awesome-skills ui-lint --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/ui-lint .gemini/skills/ui-lint && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "ui-lint" agent skill from https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/ui-lint into .gemini/skills/ui-lint/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ui-lint", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install sickn33/agentic-awesome-skills ui-lintInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add sickn33/agentic-awesome-skills --skill ui-lint -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/ui-lint .github/skills/ui-lint && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "ui-lint" agent skill from https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/ui-lint into .github/skills/ui-lint/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ui-lint", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add sickn33/agentic-awesome-skills --skill ui-lint -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install sickn33/agentic-awesome-skills ui-lint --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/ui-lint .opencode/skills/ui-lint && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "ui-lint" agent skill from https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/ui-lint into .opencode/skills/ui-lint/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ui-lint", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
ui-lint- GitHub stars
- 47k
- Used in
- 1 other repo
- Token cost
- ~853 tokens
- SKILL.md length
- 277 words
- Files
- 1
- Skills in repo
- 1,493
- Repo updated
- First seen
- Licence
- MIT
At a glance
Quick automated lint — detects common design system violations in seconds
- Works in 8 steps: Hardcoded Colors → Raw Pixel Values in Tailwind → Old Width/Height Syntax → …
- Tasks that involve Linting and formatting
- SKILL.md covers When to Use, When NOT to use, What This Does and Checks, plus 2 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
UI Lint is an agent skill from sickn33/agentic-awesome-skills. Quick automated lint — detects common design system violations in seconds
Its SKILL.md is about 850 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Frontend & Design, covering Linting and formatting and Design systems. It works with Tailwind CSS. The repository describes itself as: AAS Core is the local, agent-first control plane for complete catalog discovery, agent-owned selection, stack validation, and planning, backed by 2,400+ agentic skills. Includes… The licence is MIT.
When your agent uses it
- Tasks that involve Linting and formatting
- Tasks that involve Design systems
Example prompts
- “/ui-lint”
Workflow steps
8 steps, taken from the step headings in SKILL.md.
What it can do on your machine
Read from SKILL.md and the folder at commit 680176d. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are bash).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
UI Lint loads about 853 tokens when it runs. Until then it costs about 20 tokens; SKILL.md has 277 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from sickn33/agentic-awesome-skills at commit 680176d, republished under its MIT licence (© sickn33). 277 words, ~853 tokens.
Download SKILL.mdSave it as
.claude/skills/ui-lint/SKILL.md (or your agent's skills folder).- name
- ui-lint
- description
- Quick automated lint — detects common design system violations in seconds
- risk
- safe
- source
- https://github.com/bitjaru/styleseed/tree/main/engine/.claude/skills/ss-lint
- source_repo
- bitjaru/styleseed
- source_type
- community
- date_added
- 2026-07-01
- license
- MIT
- license_source
- https://github.com/bitjaru/styleseed/blob/main/LICENSE
Design Lint (Quick Check)
When to Use
Use this skill when you need quick automated lint — detects common design system violations in seconds.
When NOT to use
- For deeper review of design judgment (composition, hierarchy, rhythm) → use
/ss-review - For accessibility specifically → use
/ss-a11y - For Nielsen UX heuristics → use
/ss-audit - For applying refactors — this only flags violations; use
/ss-reviewto fix
Target: $ARGUMENTS
What This Does
Fast, grep-based scan for common design violations. Runs in seconds (unlike /ss-review which is a deep manual audit). Run this after every file change.
Checks
1. Hardcoded Colors
Search for hex colors in className strings that should be semantic tokens:
grep -n '#[0-9a-fA-F]\{3,8\}' [file] | grep -v 'theme.css\|tokens\|\.json'Violation: text-[#3C3C3C], bg-[#721FE5]
Fix: text-text-primary, bg-brand
2. Raw Pixel Values in Tailwind
grep -n 'p-\[.*px\]\|m-\[.*px\]\|gap-\[.*px\]' [file]Violation: p-[24px], gap-[12px]
Fix: p-6, gap-3
3. Old Width/Height Syntax
grep -n 'w-[0-9] h-[0-9]\|w-\[.*\] h-\[' [file]Violation: w-4 h-4
Fix: size-4
4. Physical Properties (LTR-only)
grep -n ' ml-\| mr-\| pl-\| pr-' [file]Violation: ml-2, mr-4
Fix: ms-2, me-4
5. Forbidden Colors
grep -n 'text-black\|bg-black\|#000000\|#000"' [file]Violation: Any pure black Fix: Use skin's text-primary token
6. Missing data-slot
grep -n 'function [A-Z]' [file] # find components
grep -n 'data-slot' [file] # check if presentViolation: Component without data-slot
Fix: Add data-slot="component-name"
7. Font Size CSS Variables (CRITICAL — Tailwind v4 conflict)
grep -n 'text-\[var(--' [file]
grep -n '\-\-text-.*px\|--fs-.*px' [file]Violation: text-[var(--text-sm)] or --text-sm: 13px in theme.css
Fix: Use explicit text-[13px]. CSS variable font sizes conflict with Tailwind v4's --text-* namespace — Tailwind reads them as color, not font-size.
8. className Without cn()
grep -n 'className={`' [file]Violation: Template literal className
Fix: Use cn() for all className composition
Output Format
🔴 FAIL [file:line] Hardcoded hex: text-[#3C3C3C] → use text-text-primary
🔴 FAIL [file:line] Raw px: p-[24px] → use p-6
🟡 WARN [file:line] Physical prop: ml-2 → use ms-2
🟡 WARN [file:line] Missing data-slot on MyComponent
🟢 PASS No violations found
Total: X errors, Y warningsIf errors > 0, list specific fixes for each violation.
Limitations
- Use this skill only when the task clearly matches its upstream source and local project context.
- Verify commands, generated code, dependencies, credentials, and external service behavior before applying changes.
- Do not treat examples as a substitute for environment-specific tests, security review, or user approval for destructive or costly actions.
© sickn33, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in skills/ui-lint of sickn33/agentic-awesome-skills.
Open the folder on GitHubat commit 680176d
Used in 1 other repository
We found 5 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in sickn33/agentic-awesome-skills, which our catalogue first saw on October 7, 2026.
Compare with similar skills
UI Lint next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| UI Lint this skillsickn33/agentic-awesome-skills | 47k | 1 repos | ~853 | Automated safety check: Pass | MIT | |
| Shadcn UIBuilderIO/agent-native | 7.1k | — | ~3k | Automated safety check: Pass | None | |
| Design Md Validatorfabricioctelles/skills | 106 | — | ~1.7k | Automated safety check: Pass | Apache-2.0 | |
| UI StylingOhh-889/skyroc | 795 | 13 repos | ~2.5k | Automated safety check: Pass | MIT | |
| Design SystemOhh-889/skyroc | 795 | 11 repos | ~1.7k | Automated safety check: Pass | MIT | |
| Creative Tim UI Blockscreativetimofficial/ui | 12k | — | ~2.1k | Automated safety check: Notes | MIT |
Similar skills
Design Md Validator
fabricioctelles/skills
Validate DESIGN.md files against the official Google specification using the @google/design.md CLI linter.
UI Styling
Ohh-889/skyroc
Create beautiful, accessible user interfaces with shadcn/ui components (built on Radix UI + Tailwind), Tailwind CSS utility-first styling, and canvas-based visual designs.
Design System
Ohh-889/skyroc
Token architecture, component specifications, and slide generation.
Creative Tim UI Blocks
creativetimofficial/ui
Helps install, generate and review Creative Tim UI blocks: shadcn/ui-based React and Tailwind sections that follow a restrained, production-minded design philosophy.
Scalar Design System
scalar/scalar
Scalar's design system — design tokens, theming (@scalar/themes), CSS variables, and the @scalar/components library.
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Related
Works with
Categories
Questions about UI Lint
What does UI Lint do?
Quick automated lint — detects common design system violations in seconds. UI Lint is an agent skill from sickn33/agentic-awesome-skills.
When should I use UI Lint?
UI Lint fits situations like: tasks that involve Linting and formatting; tasks that involve Design systems.
How do I install UI Lint in Claude Code?
Run `npx skills add sickn33/agentic-awesome-skills --skill ui-lint -a claude-code`. Or copy the skill folder (skills/ui-lint in sickn33/agentic-awesome-skills) into .claude/skills/ui-lint in your project. Claude Code loads it when a task matches its description.
How do I install UI Lint in Codex?
Run `npx skills add sickn33/agentic-awesome-skills --skill ui-lint -a codex`. Or copy the skill folder (skills/ui-lint in sickn33/agentic-awesome-skills) into .agents/skills/ui-lint in your project. Codex loads it when a task matches its description.
Can I use UI Lint in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add sickn33/agentic-awesome-skills --skill ui-lint -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/ui-lint, .gemini/skills/ui-lint, .github/skills/ui-lint and .opencode/skills/ui-lint in your project.
What does UI Lint need to run?
SKILL.md names no scripts, command-line tools or credentials: UI Lint is instructions for the agent only.
Does UI Lint access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is UI Lint safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does UI Lint use?
UI Lint is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does UI Lint use?
About 853 tokens (SKILL.md is roughly 3.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to UI Lint?
Skills that share tags, products or a category with UI Lint: Shadcn UI (BuilderIO/agent-native, 7.1k stars), Design Md Validator (fabricioctelles/skills, 106 stars), UI Styling (Ohh-889/skyroc, 795 stars) and Design System (Ohh-889/skyroc, 795 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains UI Lint?
sickn33 (a GitHub user) maintains it in sickn33/agentic-awesome-skills, which has 47,379 GitHub stars. The repository holds 1,493 skills in this directory. The repository was last updated on October 9, 2026.
Source: sickn33/agentic-awesome-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.