Vrt
marigold-ui/marigold
DST — Trigger the Visual-Regression-Tests (Chromatic) GitHub Actions workflow on the current or a given branch.
Rigorous visual validation expert specializing in UI testing, design system compliance, and accessibility verification.
Install UI Visual Validator
$ npx skills add aiskillstore/marketplace --skill ui-visual-validator -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install aiskillstore/marketplace ui-visual-validator --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/aiskillstore/marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/sickn33/ui-visual-validator .claude/skills/ui-visual-validator && 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-visual-validator" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/ui-visual-validator into .claude/skills/ui-visual-validator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ui-visual-validator", 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/aiskillstore/marketplace/tree/main/skills/sickn33/ui-visual-validatorType 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 aiskillstore/marketplace --skill ui-visual-validator -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install aiskillstore/marketplace ui-visual-validator --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/sickn33/ui-visual-validator .agents/skills/ui-visual-validator && 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-visual-validator" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/ui-visual-validator into .agents/skills/ui-visual-validator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ui-visual-validator", 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 aiskillstore/marketplace --skill ui-visual-validator -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install aiskillstore/marketplace ui-visual-validator --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/sickn33/ui-visual-validator .cursor/skills/ui-visual-validator && 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-visual-validator" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/ui-visual-validator into .cursor/skills/ui-visual-validator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ui-visual-validator", 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/aiskillstore/marketplace.git --path skills/sickn33/ui-visual-validator--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 aiskillstore/marketplace --skill ui-visual-validator -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install aiskillstore/marketplace ui-visual-validator --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/sickn33/ui-visual-validator .gemini/skills/ui-visual-validator && 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-visual-validator" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/ui-visual-validator into .gemini/skills/ui-visual-validator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ui-visual-validator", 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 aiskillstore/marketplace ui-visual-validatorInstalls 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 aiskillstore/marketplace --skill ui-visual-validator -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/sickn33/ui-visual-validator .github/skills/ui-visual-validator && 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-visual-validator" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/ui-visual-validator into .github/skills/ui-visual-validator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ui-visual-validator", 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 aiskillstore/marketplace --skill ui-visual-validator -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install aiskillstore/marketplace ui-visual-validator --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/sickn33/ui-visual-validator .opencode/skills/ui-visual-validator && 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-visual-validator" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/ui-visual-validator into .opencode/skills/ui-visual-validator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ui-visual-validator", 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-visual-validator- GitHub stars
- 430
- Used in
- 6 other repos
- Token cost
- ~2.5k tokens
- SKILL.md length
- 1,103 words
- Files
- 2
- Skills in repo
- 1,085
- Repo updated
- First seen
- Licence
- None found
At a glance
Rigorous visual validation expert specializing in UI testing, design system compliance, and accessibility verification.
- Works in 8 steps: Objective Description First: Describe… → Goal Verification: Compare each visual… → Measurement Validation: For changes… → …
- Tasks that involve Visual regression testing
- SKILL.md covers Use this skill when, Do not use this skill when, Instructions and Purpose, plus 9 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
UI Visual Validator is an agent skill from aiskillstore/marketplace. Rigorous visual validation expert specializing in UI testing, design system compliance, and accessibility verification. Masters screenshot analysis, visual regression testing, and component validation. Use PROACTIVELY to verify UI modifications have achieved their intended goals through comprehensive visual analysis.
Its SKILL.md is about 2.5k tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `skill-report.json`).
It sits in Frontend & Design, covering Visual regression testing, Design systems and Accessibility. The repository describes itself as: Security-audited skills for Claude, Codex & Claude Code. One-click install, quality verified.
When your agent uses it
- Tasks that involve Visual regression testing
- Tasks that involve Design systems
- Tasks that involve Accessibility
Example prompts
- “/ui-visual-validator”
Workflow steps
8 steps, taken from the first numbered list in SKILL.md.
- Objective Description First: Describe exactly what is observed in the visual evidence without making assumptions
- Goal Verification: Compare each visual element against the stated modification goals systematically
- Measurement Validation: For changes involving rotation, position, size, or alignment, verify through visual measurement
- Reverse Validation: Actively look for evidence that the modification failed rather than succeeded
- Critical Assessment: Challenge whether apparent differences are actually the intended differences
- Accessibility Evaluation: Assess visual accessibility compliance and inclusive design implementation
- Cross-Platform Consistency: Verify visual consistency across different platforms and devices
- Edge Case Analysis: Examine edge cases, error states, and boundary conditions
What it can do on your machine
Read from SKILL.md and the folder at commit 4ac52da. 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.
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 Visual Validator loads about 2.5k tokens when it runs. Until then it costs about 85 tokens; SKILL.md has 1,103 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
Without a licence we can't republish the file, so here is its outline and opening line. It has 1,103 words (~2,496 tokens).
“You are an experienced UI visual validation expert specializing in comprehensive visual testing and design verification through rigorous analysis methodologies.”
- name
- ui-visual-validator
- metadata.model
- sonnet
Files
SKILL.md and 1 other file in skills/sickn33/ui-visual-validator of aiskillstore/marketplace.
- SKILL.md
- skill-report.json
Open the folder on GitHubat commit 4ac52da
Used in 6 other repositories
We found 15 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 6 other GitHub owners. This page covers the copy in aiskillstore/marketplace, which our catalogue first saw on October 7, 2026.
- sickn33/agentic-awesome-skillsskills/ui-visual-validatorplugins/agentic-awesome-skills/skills/ui-visual-validator+1 more
- rmyndharis/antigravity-skillsskills/ui-visual-validator
- agent-skills-hub/agent-skills-hubskills/ui-visual-validator
- lingxling/awesome-skills-cnantigravity-awesome-skills/skills/ui-visual-validatorantigravity-awesome-skills/plugins/agentic-awesome-skills/skills/ui-visual-validator+1 more
- benjaminasterA/antigravity-awesome-skillsskills/ui-visual-validator
- henryalouf/ruflow.agents/skills/ui-visual-validator.agents/skills/antigravity-awesome-skills/skills/ui-visual-validator+4 more
Compare with similar skills
UI Visual Validator 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 Visual Validator this skillaiskillstore/marketplace | 430 | 6 repos | ~2.5k | Automated safety check: Pass | None | |
| Vrtmarigold-ui/marigold | 146 | — | ~787 | Automated safety check: Pass | MIT | |
| Light Frontend DesignLight0305/Light-skills | 640 | — | ~3.1k | Automated safety check: Pass | MIT | |
| Omh Frontendrlaope/oh-my-hermes | 3.2k | — | ~3.7k | Automated safety check: Pass | MIT | |
| Control UIcursor/plugins | 10k | 2 repos | ~1.2k | Automated safety check: Pass | None | |
| Browser QAaffaan-m/ECC | 274k | 2 repos | ~1k | Automated safety check: Pass | MIT |
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Related
Categories
Questions about UI Visual Validator
What does UI Visual Validator do?
Rigorous visual validation expert specializing in UI testing, design system compliance, and accessibility verification. UI Visual Validator is an agent skill from aiskillstore/marketplace. Rigorous visual validation expert specializing in UI testing, design system compliance, and accessibility verification.
When should I use UI Visual Validator?
UI Visual Validator fits situations like: tasks that involve Visual regression testing; tasks that involve Design systems; tasks that involve Accessibility.
How do I install UI Visual Validator in Claude Code?
Run `npx skills add aiskillstore/marketplace --skill ui-visual-validator -a claude-code`. Or copy the skill folder (skills/sickn33/ui-visual-validator in aiskillstore/marketplace) into .claude/skills/ui-visual-validator in your project. Claude Code loads it when a task matches its description.
How do I install UI Visual Validator in Codex?
Run `npx skills add aiskillstore/marketplace --skill ui-visual-validator -a codex`. Or copy the skill folder (skills/sickn33/ui-visual-validator in aiskillstore/marketplace) into .agents/skills/ui-visual-validator in your project. Codex loads it when a task matches its description.
Can I use UI Visual Validator 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 aiskillstore/marketplace --skill ui-visual-validator -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-visual-validator, .gemini/skills/ui-visual-validator, .github/skills/ui-visual-validator and .opencode/skills/ui-visual-validator in your project.
What does UI Visual Validator need to run?
SKILL.md names no scripts, command-line tools or credentials: UI Visual Validator is instructions for the agent only.
Does UI Visual Validator 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 Visual Validator 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 Visual Validator use?
No licence was found for UI Visual Validator or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does UI Visual Validator use?
About 2.5k tokens (SKILL.md is roughly 10k 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 Visual Validator?
Skills that share tags, products or a category with UI Visual Validator: Vrt (marigold-ui/marigold, 146 stars), Light Frontend Design (Light0305/Light-skills, 640 stars), Omh Frontend (rlaope/oh-my-hermes, 3.2k stars) and Control UI (cursor/plugins, 10k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains UI Visual Validator?
aiskillstore (a GitHub organization) maintains it in aiskillstore/marketplace, which has 430 GitHub stars. The repository holds 1,085 skills in this directory. The repository was last updated on October 7, 2026.
Source: aiskillstore/marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.