Agent skill

Aria Treeitem Name

by thedaviddias in thedaviddias/Front-End-Checklist

A skill your agent uses when applies to custom tree widgets built with role='tree', role='treeitem', and role='group'.

MITAuto-check passedFrontend & Design

Install Aria Treeitem Name

skills CLI
$ npx skills add thedaviddias/Front-End-Checklist --skill aria-treeitem-name -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install thedaviddias/Front-End-Checklist aria-treeitem-name --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/aria-treeitem-name .claude/skills/aria-treeitem-name && rm -rf skills-src

Use ~/.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/

Facts

Skill name
aria-treeitem-name
GitHub stars
74k
Token cost
~851 tokens
SKILL.md length
412 words
Files
2 (incl. references)
Skills in repo
390
Repo updated
First seen
Licence
MIT

At a glance

A skill your agent uses when applies to custom tree widgets built with role='tree', role='treeitem', and role='group'.

  • Applies to custom tree widgets built with role=tree
  • 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
  • Tasks that involve Accessibility

What it does

Aria Treeitem Name is an agent skill from thedaviddias/Front-End-Checklist. Use when applies to custom tree widgets built with role='tree', role='treeitem', and role='group'. Common in file explorers, nested navigation menus, org charts, and any UI where items can be expanded or collapsed to reveal children.

Its SKILL.md is about 850 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. 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

  • Applies to custom tree widgets built with role=tree
  • Tasks that involve Accessibility

Example prompts

  • “, role=”
  • “, and role=”
  • “/aria-treeitem-name”

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

Aria Treeitem Name loads about 851 tokens when it runs, and up to ~1.8k if it reads all its reference files. Until then it costs about 63 tokens; SKILL.md has 412 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~63
When it runs · the whole SKILL.md, loaded when a task matches
~851
With references · SKILL.md plus every file in references/, read only if the agent opens them
~1.8k

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). 412 words, ~851 tokens.

Download SKILL.mdSave it as .claude/skills/aria-treeitem-name/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
aria-treeitem-name
description
Use when applies to custom tree widgets built with role='tree', role='treeitem', and role='group'. Common in file explorers, nested navigation menus, org charts, and any UI where items can be expanded or collapsed to reveal children.
metadata.category
accessibility
metadata.priority
medium
metadata.difficulty
intermediate
metadata.estimatedTime
10
metadata.source
frontendchecklist.io
metadata.url
https://frontendchecklist.io/rules/accessibility/aria-treeitem-name

Provide accessible names for tree items

Tree widgets represent hierarchical data (file explorers, nested navigation, organization charts). Screen readers announce each focused treeitem's name, level, and position — e.g., 'src, collapsed, level 1, 1 of 3'. If the name is empty or generic ('folder', 'item'), blind users cannot distinguish between nodes and cannot navigate the hierarchy with confidence. VoiceOver on macOS uses the name to populate the rotor, and NVDA reads it as the user moves through the tree with arrow keys.

Quick Reference

  • Every element with role='treeitem' must have a non-empty accessible name
  • Text content of the element is used as the name by default — ensure it is descriptive
  • Use aria-label to override or supplement the visible text (e.g., adding file type context)
  • Use aria-labelledby to compose a name from multiple visible elements within the item
  • A treeitem with aria-expanded must also convey its expanded/collapsed state — this is separate from its name

Check

Find all elements with role='treeitem'. For each, determine its accessible name via the accname computation: check aria-labelledby first, then aria-label, then visible text content. Flag any treeitem with an empty or whitespace-only accessible name. Also check whether treeitems with children have aria-expanded set to 'true' or 'false' (not just absent).

Fix

For each unnamed treeitem: (1) If the element has visible text content that is descriptive, no change is needed — the text content becomes the accessible name. (2) If the visible text is ambiguous (e.g., an icon with no text), add aria-label='Descriptive name'. (3) If the item has multiple text parts (e.g., filename + file size), use aria-labelledby referencing the most descriptive element's id. (4) For expandable treeitems, ensure aria-expanded='true' or aria-expanded='false' is present and toggled on expand/collapse.

Show full SKILL.md (132 more words)Show less

Explain

WAI-ARIA 1.2 requires that treeitem elements have an accessible name as part of the tree widget pattern. Screen readers convey position within the tree using: name + level (aria-level or DOM nesting depth) + set size (aria-setsize) + position in set (aria-posinset) + expanded state (aria-expanded). The name is the only user-facing identifier — without it, a user navigating by arrow keys hears only 'treeitem, level 2' with no way to know which node they are on.

Code Review

Review the rendered markup and interactive states that affect Provide accessible names for tree items. 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/aria-treeitem-name

© 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/aria-treeitem-name of thedaviddias/Front-End-Checklist.

  • SKILL.md
  • references/rule.md

Open the folder on GitHubat commit e8d14d0

Compare with similar skills

Aria Treeitem Name 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.

Aria Treeitem Name compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Aria Treeitem Name this skillthedaviddias/Front-End-Checklist74k—~851Automated safety check: PassMIT
Web Interface Guidelines Reviewervercel-labs/openreview1.7k97 repos~308Automated safety check: PassNone
Accessibility Reviewmarkmead/hyperui12k1 repos~1.1kAutomated safety check: PassMIT
Web Animation DesignbaptisteArno/typebot.io11k2 repos~2.7kAutomated safety check: PassCustom licence
Accessibility Fixeribelick/ui-skills9.6k4 repos~1.2kAutomated safety check: PassMIT
Wcag Audit PatternsvmDeshpande/ai-agent-automation17811 repos~610Automated safety check: PassApache-2.0

Similar skills

  • Web Interface Guidelines Reviewer

    vercel-labs/openreview

    Official

    Review UI code for Web Interface Guidelines compliance. Use when asked to "review my UI", "check accessibility", "audit design", "review UX", or "check my…

    1.7k GitHub starsUsed in 97 repos~308 tokens
    Frontend & DesignAuto-check passed
  • Accessibility Review

    markmead/hyperui

    Run a WCAG 2.1 AA accessibility audit on a design or page. An agent skill from markmead/hyperui.

    12k GitHub starsUsed in 1 repo~1.1k tokens
    Frontend & DesignAuto-check passed
  • Web Animation Design

    baptisteArno/typebot.io

    Guides easing, timing and animation choices for UI motion, based on a web animation course, and reviews existing animations in a before-and-after table.

    11k GitHub starsUsed in 2 repos~2.7k tokens
    Frontend & DesignAuto-check passed
  • Accessibility Fixer

    ibelick/ui-skills

    Audits and fixes HTML accessibility problems such as ARIA labels, keyboard navigation, focus management, contrast and form errors with minimal changes.

    9.6k GitHub starsUsed in 4 repos~1.2k tokens
    Frontend & DesignAuto-check passed
  • Wcag Audit Patterns

    vmDeshpande/ai-agent-automation

    Conduct WCAG 2.2 accessibility audits with automated testing, manual verification, and remediation guidance.

    178 GitHub starsUsed in 11 repos~610 tokens
    Frontend & DesignAuto-check passed
  • Baseline UI

    ibelick/ui-skills

    Applies a fixed set of UI rules for stack, components, interaction, animation, typography and layout, or reviews a file against them with concrete fixes.

    9.6k GitHub starsUsed in 8 repos~855 tokens
    Frontend & DesignAuto-check passed

More from thedaviddias/Front-End-Checklist

All 390 skills in this repo
  • Content Dates Audit

    thedaviddias/Front-End-Checklist

    Audits article and blog pages for visible publish dates, Article JSON-LD with datePublished and dateModified, and Open Graph time tags, then fixes what is missing.

    74k GitHub stars~691 tokensUpdated 5 days ago
    Auto-check passed
  • FAQPage Schema Markup

    thedaviddias/Front-End-Checklist

    Adds, checks and fixes FAQPage JSON-LD on pages with visible question-and-answer sections so it matches what readers see and can qualify for rich results.

    74k GitHub stars~774 tokensUpdated 5 days ago
    Auto-check passed
  • Favicon Audit and Setup

    thedaviddias/Front-End-Checklist

    Checks that a site's favicon is linked, reachable and large enough for Google search results, and sets up ICO, SVG and Apple touch icon files when they are missing.

    74k GitHub stars~731 tokensUpdated 5 days ago
    Auto-check passed
  • Content Freshness Signals

    thedaviddias/Front-End-Checklist

    Audits article pages for freshness signals, covering the Last-Modified header, Article JSON-LD dateModified and a visible last-updated date, and fixes mismatches.

    74k GitHub stars~741 tokensUpdated 5 days ago
    Auto-check passed
  • Geo Meta Tags Audit

    thedaviddias/Front-End-Checklist

    Audits and fixes geo.region, geo.placename and geo.position meta tags on regional pages, noting where they help (Bing) and where they do not (Google).

    74k GitHub stars~763 tokensUpdated 5 days ago
    Auto-check passed
  • Improve a Front-End Checklist Rule

    thedaviddias/Front-End-Checklist

    Scores and rewrites a Front-End Checklist rule MDX file against a scored quality rubric, replacing generic stub prompts with specific, actionable ones.

    74k GitHub stars~1.3k tokensUpdated 5 days ago
    Auto-check passed

Questions about Aria Treeitem Name

What does Aria Treeitem Name do?

A skill your agent uses when applies to custom tree widgets built with role='tree', role='treeitem', and role='group'. Aria Treeitem Name is an agent skill from thedaviddias/Front-End-Checklist. Use when applies to custom tree widgets built with role='tree', role='treeitem', and role='group'.

When should I use Aria Treeitem Name?

Aria Treeitem Name fits situations like: applies to custom tree widgets built with role=tree; tasks that involve Accessibility.

How do I install Aria Treeitem Name in Claude Code?

Run `npx skills add thedaviddias/Front-End-Checklist --skill aria-treeitem-name -a claude-code`. Or copy the skill folder (skills/aria-treeitem-name in thedaviddias/Front-End-Checklist) into .claude/skills/aria-treeitem-name in your project. Claude Code loads it when a task matches its description.

How do I install Aria Treeitem Name in Codex?

Run `npx skills add thedaviddias/Front-End-Checklist --skill aria-treeitem-name -a codex`. Or copy the skill folder (skills/aria-treeitem-name in thedaviddias/Front-End-Checklist) into .agents/skills/aria-treeitem-name in your project. Codex loads it when a task matches its description.

Can I use Aria Treeitem Name 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 aria-treeitem-name -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/aria-treeitem-name, .gemini/skills/aria-treeitem-name, .github/skills/aria-treeitem-name and .opencode/skills/aria-treeitem-name in your project.

What does Aria Treeitem Name need to run?

SKILL.md names no scripts, command-line tools or credentials: Aria Treeitem Name is instructions for the agent only.

Does Aria Treeitem Name 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 Aria Treeitem Name 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 Aria Treeitem Name use?

Aria Treeitem Name 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 Aria Treeitem Name use?

About 851 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. Its references folder adds about 944 tokens, read only when the agent opens those files.

What are the alternatives to Aria Treeitem Name?

Skills that share tags, products or a category with Aria Treeitem Name: Web Interface Guidelines Reviewer (vercel-labs/openreview, 1.7k stars), Accessibility Review (markmead/hyperui, 12k stars), Web Animation Design (baptisteArno/typebot.io, 11k stars) and Accessibility Fixer (ibelick/ui-skills, 9.6k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Aria Treeitem Name?

thedaviddias (a GitHub user) maintains it in thedaviddias/Front-End-Checklist, which has 74,421 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.