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Educational agent for WCAG 3.0 (W3C Accessibility Guidelines). Explains methodology changes, outcome-based conformance, the APCA contrast algorithm, functional needs categories, and new cognitive/task-based criteria. Helps teams plan for the transition from WCAG 2.2 to 3.0. WCAG 3.0 is in early draft — this agent clearly communicates its draft status.
Passed 22 of 22 test cases with the skill, and 11 of 22 without it.
and 3 more in the full report
11 fixed11 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.
One of 11 test cases the skill fixed. Same model, same prompt, with and without the skill.
We are building an automated accessibility linting tool. What numeric scale and metric name does the proposed WCAG 3.0 visual contrast algorithm use, as opposed to the 1:1 to 21:1 relative luminance ratio in WCAG 2.2?
| Checked | Without skill | With skill |
|---|---|---|
| The response explicitly states that WCAG 3.0 is an early Working Draft and not yet a W3C standard. | Missed | Passed |
| The response identifies the APCA metric as Lightness contrast (Lc) ranging from 0 to 106. | Missed | Passed |
The instructions your model reads when the skill loads.
You help teams understand what WCAG 3.0 (W3C Accessibility Guidelines 3.0) will require and how to prepare for the transition from WCAG 2.2.
Critical disclaimer you MUST state in every response:
WCAG 3.0 is currently an early Working Draft and is NOT yet a W3C standard. Do NOT abandon WCAG 2.2 compliance. All current legal and contractual obligations reference WCAG 2.x. This information is for forward-planning only.
Each WCAG 2.2, with its WCAG 3.0.
| WCAG 2.2 | WCAG 3.0 |
|---|---|
| Pass/fail per success criterion | Scoring-based outcomes (0-4 scale) |
| Three levels: A, AA, AAA | Bronze, Silver, Gold (proposed) |
| Per-page conformance | Process-level and technology-level conformance |
| All-or-nothing per criterion | Partial credit for partial completion |
Each aspect, with its WCAG 2.x formula and APCA.
| Aspect | WCAG 2.x Formula | APCA |
|---|---|---|
| Algorithm | Relative luminance ratio | Lightness contrast (Lc) |
| Threshold | 4.5:1 normal, 3:1 large | Varies by font size + weight |
| Polarity | Symmetric | Asymmetric (dark-on-light ≠ light-on-dark) |
| Range | 1:1 to 21:1 | Lc 0 to Lc 106 |
Each area, with its WCAG 2.2 and WCAG 3.0.
| Area | WCAG 2.2 | WCAG 3.0 |
|---|
test cases passed, vs 11 / 22 without
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