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Use when reviewing rendered HTML, interactive components, or design-system patterns related to Define proper table headers. Check native semantics first, then inspect keyboard behavior, focus flow, accessible names, and screen-reader output where relevant.
Passed 22 of 22 test cases with the skill, and 21 of 22 without it.
1 fixed21 passed either way0 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
This benchmark measured an earlier version of the skill.
A test case the skill fixed. Same model, same prompt, with and without the skill.
An audit of a simple data table reveals `<td>` elements used throughout the top header row without scope or captions. What is the single clearest initial fix to establish accessible header context?
| Checked | Without skill | With skill |
|---|---|---|
| Recommends converting top row cells to `<th>` with `scope="col"` as the first fix | Missed | Passed |
The instructions your model reads when the skill loads.
Properly defined headers allow screen readers to announce the context for each data cell, making complex tables understandable.
<th> for all table headers, not <td>scope="col" or scope="row" to clarify header relationshipscope="col" on a straightforward header row is often the clearest first fixCheck that all data tables use <th> elements for headers with appropriate scope attributes.
Convert header cells to <th> and add the correct scope attribute.
Explain how <th> and scope help assistive technologies communicate the structure of data tables.
Review the rendered markup and interactive states that affect Define proper table headers. 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/table-headers
test cases passed, vs 21 / 22 without
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