Agent skill

Tables Data Specialist

by Community-Access in Community-Access/accessibility-agents

Data tables and grids: headers, scope, captions, sorting and complex tables.

MITAuto-check passedFrontend & Design

Install Tables Data Specialist

skills CLI
$ npx skills add Community-Access/accessibility-agents --skill tables-data-specialist -a claude-code

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

GitHub CLI
$ gh skill install Community-Access/accessibility-agents tables-data-specialist --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/Community-Access/accessibility-agents.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/tables-data-specialist .claude/skills/tables-data-specialist && 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
tables-data-specialist
GitHub stars
423
Token cost
~1.3k tokens
SKILL.md length
442 words
Files
6 (incl. references)
Skills in repo
108
Repo updated
First seen
Licence
MIT

At a glance

Data tables and grids: headers, scope, captions, sorting and complex tables.

  • Tasks that involve Accessibility
  • SKILL.md covers Your Scope, Select-All Checkboxes, Row Selection and Actions and Pagination, plus 5 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Tables Data Specialist is an agent skill from Community-Access/accessibility-agents. Data tables and grids: headers, scope, captions, sorting and complex tables.

Its SKILL.md is about 1.3k tokens, which your agent loads only when the skill is triggered. The skill folder holds 8 other files, including reference files (for example `agents/openai.yaml`, `examples/findings.json` and `references/responsive-tables.md`).

It sits in Frontend & Design, covering Accessibility. The repository describes itself as: Accessibility review agents for Claude Code, GitHub Copilot, and Claude Desktop. Eleven specialists that enforce WCAG 2.2 AA compliance so AI coding tools stop generating… The licence is MIT.

When your agent uses it

  • Tasks that involve Accessibility

Example prompts

  • “/tables-data-specialist”

What it can do on your machine

Read from SKILL.md and the folder at commit decf6ba. 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 html and javascript).

    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

Tables Data Specialist loads about 1.3k tokens when it runs, and up to ~5.2k if it reads all its reference files. Until then it costs about 25 tokens; SKILL.md has 442 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~25
When it runs · the whole SKILL.md, loaded when a task matches
~1.3k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~5.2k

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 Community-Access/accessibility-agents at commit decf6ba, republished under its MIT licence (© Community-Access). 442 words, ~1,328 tokens.

Download SKILL.mdSave it as .claude/skills/tables-data-specialist/SKILL.md (or your agent's skills folder). This skill also uses 5 other files; get the full folder from GitHub.
name
tables-data-specialist
description
Data tables and grids: headers, scope, captions, sorting and complex tables.
license
MIT
disable-model-invocation
true
metadata.tier
specialist
metadata.domain
web
metadata.output
findings
metadata.effort
medium
metadata.title
Tables and Data Specialist

You are the data table accessibility specialist. Tables are one of the most broken areas of web accessibility. Screen reader users rely on proper table markup to navigate data - without it, a table is just a wall of disconnected text. You ensure every table is properly structured, labeled, and navigable.

Your Scope

You own everything related to tabular data accessibility:

  • Table markup and structure (<table>, <thead>, <tbody>, <tfoot>)
  • Column and row headers (<th>, scope, headers)
  • Table captions and summaries
  • Sortable columns (aria-sort)
  • Responsive table patterns
  • ARIA grid and treegrid roles
  • Data grids with interactive cells
  • Comparison and pricing tables
  • Layout tables (and why they shouldn't exist)
  • Merged cells (colspan, rowspan)
  • Pagination and virtual scrolling in tables

Select-All Checkboxes

html
<th scope="col">
  <input type="checkbox" 
         aria-label="Select all users" 
         id="select-all"
         aria-checked="mixed">
</th>

Three states:

  • Unchecked: No rows selected
  • Checked: All rows selected
  • Mixed/indeterminate: Some rows selected - set via checkbox.indeterminate = true

When the select-all state changes, announce the result:

javascript
selectAll.addEventListener('change', () => {
  const count = getSelectedCount();
  liveRegion.textContent = selectAll.checked 
    ? `All ${total} users selected` 
    : 'All users deselected';
});

Row Selection and Actions

html
<tr aria-selected="true">
  <td><input type="checkbox" checked aria-label="Selected: Jane Smith"></td>
  <td>Jane Smith</td>
  <!-- ... -->
</tr>
  • Use aria-selected="true" on selected rows
  • Bulk action buttons outside the table should be enabled/disabled based on selection
  • Announce selection count changes via live region
  • Provide keyboard shortcut for select all (Ctrl+A when grid is focused)

Pagination

html
<table aria-describedby="table-info">
  <!-- table content -->
</table>
<p id="table-info">Showing 1-10 of 247 results</p>
<nav aria-label="Table pagination">
  <button aria-label="Previous page" disabled>Previous</button>
  <button aria-current="page" aria-label="Page 1">1</button>
  <button aria-label="Page 2">2</button>
  <button aria-label="Page 3">3</button>
  <button aria-label="Next page">Next</button>
</nav>
<div aria-live="polite" class="visually-hidden" id="page-status"></div>

Requirements:

  • aria-current="page" on the current page button
  • aria-label on each page button with the page number
  • Disabled buttons use disabled attribute (not aria-disabled for pagination)
  • Live region announces page changes: "Page 2 of 25, showing results 11-20"
  • Focus management: after page change, move focus to the first row or the table caption

Empty States

html
<table>
  <caption>Search results</caption>
  <thead>
    <tr>
      <th scope="col">Name</th>
      <th scope="col">Date</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td colspan="2">
        <p>No results found. Try adjusting your search filters.</p>
      </td>
    </tr>
  </tbody>
</table>
  • Use colspan to span the full width
  • Provide a helpful message, not just "No data"
  • Announce the empty state via live region if it results from a filter/search action
Show full SKILL.md (175 more words)Show less

Layout Tables -- Detection and Remediation

Tables used for layout (not data) are an accessibility antipattern. Per WebAIM, a layout table is identified by:

  • No <th> elements
  • No <caption> element
  • No scope or headers attributes
  • Data makes no logical sense when read in table cell order
html
<!-- NEVER DO THIS -->
<table>
  <tr>
    <td>Sidebar content</td>
    <td>Main content</td>
  </tr>
</table>

<!-- If you absolutely must (legacy code), strip the semantics -->
<table role="presentation">
  <tr>
    <td>Sidebar content</td>
    <td>Main content</td>
  </tr>
</table>
  • role="presentation" removes table semantics from screen readers
  • No <th>, <caption>, scope, or headers on layout tables
  • The correct fix is always to use CSS Grid or Flexbox instead
  • When remediating legacy layout tables, ensure data is still presented in a logical, meaningful linear order when table structure is removed

How to Report Issues

Reference files

Read one only when the task reaches it. Do not read them all up front.

  • references/simple-data-tables.md - Simple Data Tables, Complex Tables, Sortable Tables, Interactive Data Grids
  • references/responsive-tables.md - Responsive Tables
  • references/visual-data-grids-without-semantic-markup.md - Visual Data Grids Without Semantic Markup, Validation Checklist, Common Mistakes You Must...

Output contract

Return only JSON matching skills/a11y-core/schemas/findings.schema.json. No prose, no summary, no restated instructions. One object, one array of findings.

Shared rules, dispatch contract and schemas: skills/a11y-core/SKILL.md. Authoritative specifications for this skill: skills/a11y-core/references/sources.md.

© Community-Access, 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 5 other files (references) in skills/tables-data-specialist of Community-Access/accessibility-agents.

  • SKILL.md
  • agents/openai.yaml
  • examples/findings.json
  • references/responsive-tables.md
  • references/simple-data-tables.md
  • references/visual-data-grids-without-semantic-markup.md

Open the folder on GitHubat commit decf6ba

Compare with similar skills

Tables Data Specialist 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.

Tables Data Specialist compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Tables Data Specialist this skillCommunity-Access/accessibility-agents423—~1.3kAutomated 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

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Questions about Tables Data Specialist

What does Tables Data Specialist do?

Data tables and grids: headers, scope, captions, sorting and complex tables. Tables Data Specialist is an agent skill from Community-Access/accessibility-agents. Data tables and grids: headers, scope, captions, sorting and complex tables.

When should I use Tables Data Specialist?

Tables Data Specialist fits situations like: tasks that involve Accessibility.

How do I install Tables Data Specialist in Claude Code?

Run `npx skills add Community-Access/accessibility-agents --skill tables-data-specialist -a claude-code`. Or copy the skill folder (skills/tables-data-specialist in Community-Access/accessibility-agents) into .claude/skills/tables-data-specialist in your project. Claude Code loads it when a task matches its description.

How do I install Tables Data Specialist in Codex?

Run `npx skills add Community-Access/accessibility-agents --skill tables-data-specialist -a codex`. Or copy the skill folder (skills/tables-data-specialist in Community-Access/accessibility-agents) into .agents/skills/tables-data-specialist in your project. Codex loads it when a task matches its description.

Can I use Tables Data Specialist 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 Community-Access/accessibility-agents --skill tables-data-specialist -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/tables-data-specialist, .gemini/skills/tables-data-specialist, .github/skills/tables-data-specialist and .opencode/skills/tables-data-specialist in your project.

What does Tables Data Specialist need to run?

SKILL.md names no scripts, command-line tools or credentials: Tables Data Specialist is instructions for the agent only.

Does Tables Data Specialist 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 Tables Data Specialist 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 Tables Data Specialist use?

Tables Data Specialist 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 Tables Data Specialist use?

About 1.3k tokens (SKILL.md is roughly 5.3k 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 3.9k tokens, read only when the agent opens those files.

What are the alternatives to Tables Data Specialist?

Skills that share tags, products or a category with Tables Data Specialist: 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 Tables Data Specialist?

Community-Access (a GitHub organization) maintains it in Community-Access/accessibility-agents, which has 423 GitHub stars. The repository holds 108 skills in this directory. The repository was last updated on September 23, 2026.

Source: Community-Access/accessibility-agents on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.