Data Table

# Aster Component Implementation Prompt — Data Table

## 1. Component Purpose & Canonical Role
- **Component:** Data Table (`table`)
- **Category:** Data Display
- **Native Element:** `<table>`
- **Summary:** Shows rows of data that people need to compare.
- **When to Use:** Datasets with comparable attributes such as server nodes, logs, and transactions.
- **When Not to Use:** Simple single-column lists or page layout grids.

## 2. Authoritative Repository Files
- **Component CSS:** `components/table/table.css`
- **Component Spec:** `docs/components/table.md`
- **Agent Contract:** `skills/using-aster-components/SKILL.md`
- **Compiled Bundle:** `dist/css/aster.css` and `dist/js/aster.js`

## 3. Canonical HTML Structure & Classes
```html
<div class="as-table-container">
  <div class="as-table-scroll">
    <table class="as-table as-table--interactive">
      <caption class="as-sr-only">Active Deployments</caption>
      <thead>
        <tr>
          <th scope="col" class="as-table__th">Service</th>
          <th scope="col" class="as-table__th">Region</th>
          <th scope="col" class="as-table__th as-table__th--num">Latency</th>
        </tr>
      </thead>
      <tbody>
        <tr class="as-table__row">
          <th scope="row" class="as-table__cell as-table__cell--primary">api-gateway</th>
          <td class="as-table__cell">us-east-1</td>
          <td class="as-table__cell as-table__cell--num">1.24 ms</td>
        </tr>
      </tbody>
    </table>
  </div>
</div>
```

## 4. Measured Geometry
Measured from the rendered component when this page loads.

## 5. Non-Negotiable Aster Constraints
1. **Zero Primitive Color Leaks:** Bind colors strictly to `--as-semantic-color-*` custom properties. Never use `--as-color-primitive-*` or hardcoded hex values in component usage.
2. **Minimum 4px Radius Policy:** Never use `2px` border-radius. Use `--as-radius-sm` (`4px`), `--as-radius-md` (`8px`), `--as-radius-lg` (`12px`), or `--as-radius-full` (`9999px`).
3. **Single Standard Density Mode:** Compact mode (`data-density="compact"` / `.as-*--compact`) is permanently retired. Do not emit compact classes or attributes.
4. **WCAG 2.2 AA Accessibility:** Maintain >= 4.5:1 text contrast, >= 3:1 UI/border contrast, >= 24x24px interactive hit targets, and full keyboard operability (`Tab`, `Enter`, `Space`, `Escape`, Arrow keys).

## 6. Verification Commands
```bash
npm run test:components
npm run test:contrast
npm run test:browser
```