UI/UX Design System Advisor
Galaxy-Dawn/claude-scholar
Turns a vague UI request into a concrete design system with style, palette, typography and layout guidance from a search script, plus stack-specific implementation advice.
A skill your agent uses when reviewing rendered HTML, interactive components, or design-system patterns related to Use unique IDs for active elements.
Install Duplicate Id Active
$ npx skills add thedaviddias/Front-End-Checklist --skill duplicate-id-active -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install thedaviddias/Front-End-Checklist duplicate-id-active --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/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/duplicate-id-active .claude/skills/duplicate-id-active && 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 "duplicate-id-active" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/duplicate-id-active into .claude/skills/duplicate-id-active/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "duplicate-id-active", 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/thedaviddias/Front-End-Checklist/tree/main/skills/duplicate-id-activeType 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 thedaviddias/Front-End-Checklist --skill duplicate-id-active -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install thedaviddias/Front-End-Checklist duplicate-id-active --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/duplicate-id-active .agents/skills/duplicate-id-active && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "duplicate-id-active" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/duplicate-id-active into .agents/skills/duplicate-id-active/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "duplicate-id-active", 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 thedaviddias/Front-End-Checklist --skill duplicate-id-active -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install thedaviddias/Front-End-Checklist duplicate-id-active --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/duplicate-id-active .cursor/skills/duplicate-id-active && 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 "duplicate-id-active" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/duplicate-id-active into .cursor/skills/duplicate-id-active/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "duplicate-id-active", 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/thedaviddias/Front-End-Checklist.git --path skills/duplicate-id-active--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 thedaviddias/Front-End-Checklist --skill duplicate-id-active -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install thedaviddias/Front-End-Checklist duplicate-id-active --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/duplicate-id-active .gemini/skills/duplicate-id-active && 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 "duplicate-id-active" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/duplicate-id-active into .gemini/skills/duplicate-id-active/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "duplicate-id-active", 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 thedaviddias/Front-End-Checklist duplicate-id-activeInstalls 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 thedaviddias/Front-End-Checklist --skill duplicate-id-active -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/duplicate-id-active .github/skills/duplicate-id-active && 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 "duplicate-id-active" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/duplicate-id-active into .github/skills/duplicate-id-active/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "duplicate-id-active", 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 thedaviddias/Front-End-Checklist --skill duplicate-id-active -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install thedaviddias/Front-End-Checklist duplicate-id-active --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/duplicate-id-active .opencode/skills/duplicate-id-active && 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 "duplicate-id-active" agent skill from https://github.com/thedaviddias/Front-End-Checklist/tree/main/skills/duplicate-id-active into .opencode/skills/duplicate-id-active/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "duplicate-id-active", 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
duplicate-id-active- GitHub stars
- 74k
- Token cost
- ~440 tokens
- SKILL.md length
- 165 words
- Files
- 2 (incl. references)
- Skills in repo
- 390
- Repo updated
- First seen
- Licence
- MIT
At a glance
A skill your agent uses when reviewing rendered HTML, interactive components, or design-system patterns related to Use unique IDs for active elements.
- Reviewing rendered HTML
- SKILL.md covers Quick Reference, Check, Fix and Explain, plus 1 more section
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Interactive components
What it does
Duplicate Id Active is an agent skill from thedaviddias/Front-End-Checklist. Use when reviewing rendered HTML, interactive components, or design-system patterns related to Use unique IDs for active elements. Check native semantics first, then inspect keyboard behavior, focus flow, accessible names, and screen-reader output where relevant.
Its SKILL.md is about 440 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/rule.md`).
It sits in Frontend & Design, covering Accessibility and Design systems. The repository describes itself as: 🗂 The essential checklist for modern web development, for humans and AI agents. The licence is MIT.
When your agent uses it
- Reviewing rendered HTML
- Interactive components
- Design-system patterns related to Use unique IDs for active elements
Example prompts
- “/duplicate-id-active”
What it can do on your machine
Read from SKILL.md and the folder at commit e8d14d0. 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
Links to these hosts (documentation or services it may open):
frontendchecklist.io
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
Duplicate Id Active loads about 440 tokens when it runs, and up to ~1.2k if it reads all its reference files. Until then it costs about 71 tokens; SKILL.md has 165 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 thedaviddias/Front-End-Checklist at commit e8d14d0, republished under its MIT licence (© thedaviddias). 165 words, ~440 tokens.
Download SKILL.mdSave it as
.claude/skills/duplicate-id-active/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.- name
- duplicate-id-active
- description
- Use when reviewing rendered HTML, interactive components, or design-system patterns related to Use unique IDs for active elements. Check native semantics first, then inspect keyboard behavior, focus flow, accessible names, and screen-reader output where relevant.
- metadata.category
- accessibility
- metadata.priority
- high
- metadata.difficulty
- intermediate
- metadata.estimatedTime
- 10
- metadata.source
- frontendchecklist.io
- metadata.url
- https://frontendchecklist.io/rules/accessibility/duplicate-id-active
Use unique IDs for active elements
Duplicate IDs on active elements can cause browsers and assistive technologies to skip items, misdirect focus, or fail to trigger the correct action.
Quick Reference
- Ensure all focusable elements (links, buttons, inputs) have unique id values
- Avoid duplicate IDs that can break keyboard navigation and focus management
- Prevent screen reader confusion when navigating interactive controls
Check
Search for duplicate id attributes on focusable or active HTML elements.
Fix
Assign a unique id to each active element to ensure correct focus handling and accessibility.
Explain
Explain how unique IDs on active elements prevent navigation errors for keyboard and screen reader users.
Code Review
Review the rendered markup and interactive states that affect Use unique IDs for active elements. Flag exact elements, roles, labels, focus behavior, or keyboard interactions that violate the rule, and note how to verify the fix with browser accessibility tooling or assistive tech.
For full implementation details, code examples, and framework-specific guidance,
see references/rule.md.
Rule page: https://frontendchecklist.io/rules/accessibility/duplicate-id-active
© thedaviddias, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 1 other file (references) in skills/duplicate-id-active of thedaviddias/Front-End-Checklist.
- SKILL.md
- references/rule.md
Open the folder on GitHubat commit e8d14d0
Compare with similar skills
Duplicate Id Active 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 |
|---|---|---|---|---|---|---|
| Duplicate Id Active this skillthedaviddias/Front-End-Checklist | 74k | — | ~440 | Automated safety check: Pass | MIT | |
| UI/UX Design System AdvisorGalaxy-Dawn/claude-scholar | 5.7k | 1 repos | ~1.1k | Automated safety check: Pass | MIT | |
| Extract DesignManavarya09/design-extract | 4.2k | — | ~786 | Automated safety check: Notes | MIT | |
| Color Auditrome-os/rome | 737 | — | ~2.7k | Automated safety check: Pass | MIT | |
| Material Design 3 UI/UX Guideskydashnet/material-design-3-ui-skill | 135 | — | ~3k | Automated safety check: Pass | MIT | |
| UI Component Spec Designerplugin87/ux-ui-agent-skills | 1.6k | — | ~2.8k | Automated safety check: Pass | MIT |
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Related
Categories
Questions about Duplicate Id Active
What does Duplicate Id Active do?
A skill your agent uses when reviewing rendered HTML, interactive components, or design-system patterns related to Use unique IDs for active elements. Duplicate Id Active is an agent skill from thedaviddias/Front-End-Checklist. Use when reviewing rendered HTML, interactive components, or design-system patterns related to Use unique IDs for active elements.
When should I use Duplicate Id Active?
Duplicate Id Active fits situations like: reviewing rendered HTML; interactive components; design-system patterns related to Use unique IDs for active elements.
How do I install Duplicate Id Active in Claude Code?
Run `npx skills add thedaviddias/Front-End-Checklist --skill duplicate-id-active -a claude-code`. Or copy the skill folder (skills/duplicate-id-active in thedaviddias/Front-End-Checklist) into .claude/skills/duplicate-id-active in your project. Claude Code loads it when a task matches its description.
How do I install Duplicate Id Active in Codex?
Run `npx skills add thedaviddias/Front-End-Checklist --skill duplicate-id-active -a codex`. Or copy the skill folder (skills/duplicate-id-active in thedaviddias/Front-End-Checklist) into .agents/skills/duplicate-id-active in your project. Codex loads it when a task matches its description.
Can I use Duplicate Id Active 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 thedaviddias/Front-End-Checklist --skill duplicate-id-active -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/duplicate-id-active, .gemini/skills/duplicate-id-active, .github/skills/duplicate-id-active and .opencode/skills/duplicate-id-active in your project.
What does Duplicate Id Active need to run?
SKILL.md names no scripts, command-line tools or credentials: Duplicate Id Active is instructions for the agent only.
Does Duplicate Id Active access the network?
SKILL.md names 1 domain. As links in the text: frontendchecklist.io. This is read from the text; nothing was executed.
Is Duplicate Id Active 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 Duplicate Id Active use?
Duplicate Id Active is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Duplicate Id Active use?
About 440 tokens (SKILL.md is roughly 1.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 747 tokens, read only when the agent opens those files.
What are the alternatives to Duplicate Id Active?
Skills that share tags, products or a category with Duplicate Id Active: UI/UX Design System Advisor (Galaxy-Dawn/claude-scholar, 5.7k stars), Extract Design (Manavarya09/design-extract, 4.2k stars), Color Audit (rome-os/rome, 737 stars) and Material Design 3 UI/UX Guide (skydashnet/material-design-3-ui-skill, 135 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Duplicate Id Active?
thedaviddias (a GitHub user) maintains it in thedaviddias/Front-End-Checklist, which has 74,412 GitHub stars. The repository holds 390 skills in this directory. The repository was last updated on October 6, 2026.
Source: thedaviddias/Front-End-Checklist on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.