By name: wcag-22 description: "WCAG 2.2 success criteria knowledge base for accessibility assessment"
WCAG 2.2 - Skill Entry
This SKILL.md is the entrypoint for the Web Content Accessibility Guidelines (WCAG) 2.2 framework skill used by the Accessibility Planner and the Accessibility Skill Assessor subagent.
WCAG 2.2 is published by the W3C Web Accessibility Initiative as a W3C Recommendation. It organises 86 active success criteria (plus 1 obsolete criterion, SC 4.1.1 Parsing) under four foundational principles (Perceivable, Operable, Understandable, Robust) and 13 guidelines. Each success criterion is assigned one of three conformance levels: A, AA, or AAA.
Source: W3C Web Content Accessibility Guidelines (WCAG) 2.2, https://www.w3.org/TR/WCAG22/.
Licensing posture
WCAG 2.2 is published under the W3C Document License. This skill paraphrases success-criterion intent rather than reproducing normative text verbatim, in line with the paraphrase-preferred posture defined in accessibility-license-posture.instructions.md. Every per-guideline reference file cites the canonical W3C URL for each success criterion, and any future verbatim quotation must carry the W3C copyright attribution line specified in that instruction file.
Success-criterion roll-up
The table below lists every WCAG 2.2 success criterion. The Reference column links into the per-guideline reference file using an anchor that matches the section header for that criterion.
| SC | Title | Level | Principle | Reference |
|---|---|---|---|---|
| 1.1.1 | Non-text Content | A | Perceivable | guideline-1-1.md#sc-1-1-1 |
| 1.2.1 | Audio-only and Video-only (Prerecorded) | A | Perceivable | guideline-1-2.md#sc-1-2-1 |
| 1.2.2 | Captions (Prerecorded) | A | Perceivable | guideline-1-2.md#sc-1-2-2 |
| 1.2.3 | Audio Description or Media Alternative (Prerecorded) | A | Perceivable | guideline-1-2.md#sc-1-2-3 |
| 1.2.4 | Captions (Live) | AA | Perceivable | guideline-1-2.md#sc-1-2-4 |
| 1.2.5 | Audio Description (Prerecorded) | AA | Perceivable | guideline-1-2.md#sc-1-2-5 |
| 1.2.6 | Sign Language (Prerecorded) | AAA | Perceivable | guideline-1-2.md#sc-1-2-6 |
| 1.2.7 | Extended Audio Description (Prerecorded) | AAA | Perceivable | guideline-1-2.md#sc-1-2-7 |
| 1.2.8 | Media Alternative (Prerecorded) | AAA | Perceivable | guideline-1-2.md#sc-1-2-8 |
| 1.2.9 | Audio-only (Live) | AAA | Perceivable | guideline-1-2.md#sc-1-2-9 |
| 1.3.1 | Info and Relationships | A | Perceivable | guideline-1-3.md#sc-1-3-1 |
| 1.3.2 | Meaningful Sequence | A | Perceivable | guideline-1-3.md#sc-1-3-2 |
| 1.3.3 | Sensory Characteristics | A | Perceivable | guideline-1-3.md#sc-1-3-3 |
| 1.3.4 | Orientation | AA | Perceivable | guideline-1-3.md#sc-1-3-4 |
| 1.3.5 | Identify Input Purpose | AA | Perceivable | guideline-1-3.md#sc-1-3-5 |
| 1.3.6 | Identify Purpose | AAA | Perceivable | guideline-1-3.md#sc-1-3-6 |
| 1.4.1 | Use of Color | A | Perceivable | guideline-1-4.md#sc-1-4-1 |
| 1.4.2 | Audio Control | A | Perceivable | guideline-1-4.md#sc-1-4-2 |
| 1.4.3 | Contrast (Minimum) | AA | Perceivable | guideline-1-4.md#sc-1-4-3 |
| 1.4.4 | Resize Text | AA | Perceivable | guideline-1-4.md#sc-1-4-4 |
| 1.4.5 | Images of Text | AA | Perceivable | guideline-1-4.md#sc-1-4-5 |
| 1.4.6 | Contrast (Enhanced) | AAA | Perceivable | guideline-1-4.md#sc-1-4-6 |
| 1.4.7 | Low or No Background Audio | AAA | Perceivable | guideline-1-4.md#sc-1-4-7 |
| 1.4.8 | Visual Presentation | AAA | Perceivable | guideline-1-4.md#sc-1-4-8 |
| 1.4.9 | Images of Text (No Exception) | AAA | Perceivable | guideline-1-4.md#sc-1-4-9 |
| 1.4.10 | Reflow | AA | Perceivable | guideline-1-4.md#sc-1-4-10 |
| 1.4.11 | Non-text Contrast | AA | Perceivable | guideline-1-4.md#sc-1-4-11 |
| 1.4.12 | Text Spacing | AA | Perceivable | guideline-1-4.md#sc-1-4-12 |
| 1.4.13 | Content on Hover or Focus | AA | Perceivable | guideline-1-4.md#sc-1-4-13 |
| 2.1.1 | Keyboard | A | Operable | guideline-2-1.md#sc-2-1-1 |
| 2.1.2 | No Keyboard Trap | A | Operable | guideline-2-1.md#sc-2-1-2 |
| 2.1.3 | Keyboard (No Exception) | AAA | Operable | guideline-2-1.md#sc-2-1-3 |
| 2.1.4 | Character Key Shortcuts | A | Operable | guideline-2-1.md#sc-2-1-4 |
| 2.2.1 | Timing Adjustable | A | Operable | guideline-2-2.md#sc-2-2-1 |
| 2.2.2 | Pause, Stop, Hide | A | Operable | guideline-2-2.md#sc-2-2-2 |
| 2.2.3 | No Timing | AAA | Operable | guideline-2-2.md#sc-2-2-3 |
| 2.2.4 | Interruptions | AAA | Operable | guideline-2-2.md#sc-2-2-4 |
| 2.2.5 | Re-authenticating | AAA | Operable | guideline-2-2.md#sc-2-2-5 |
| 2.2.6 | Timeouts | AAA | Operable | guideline-2-2.md#sc-2-2-6 |
| 2.3.1 | Three Flashes or Below Threshold | A | Operable | guideline-2-3.md#sc-2-3-1 |
| 2.3.2 | Three Flashes | AAA | Operable | guideline-2-3.md#sc-2-3-2 |
| 2.3.3 | Animation from Interactions | AAA | Operable | guideline-2-3.md#sc-2-3-3 |
| 2.4.1 | Bypass Blocks | A | Operable | guideline-2-4.md#sc-2-4-1 |
| 2.4.2 | Page Titled | A | Operable | guideline-2-4.md#sc-2-4-2 |
| 2.4.3 | Focus Order | A | Operable | guideline-2-4.md#sc-2-4-3 |
| 2.4.4 | Link Purpose (In Context) | A | Operable | guideline-2-4.md#sc-2-4-4 |
| 2.4.5 | Multiple Ways | AA | Operable | guideline-2-4.md#sc-2-4-5 |
| 2.4.6 | Headings and Labels | AA | Operable | guideline-2-4.md#sc-2-4-6 |
| 2.4.7 | Focus Visible | AA | Operable | guideline-2-4.md#sc-2-4-7 |
| 2.4.8 | Location | AAA | Operable | guideline-2-4.md#sc-2-4-8 |
| 2.4.9 | Link Purpose (Link Only) | AAA | Operable | guideline-2-4.md#sc-2-4-9 |
| 2.4.10 | Section Headings | AAA | Operable | guideline-2-4.md#sc-2-4-10 |
| 2.4.11 | Focus Not Obscured (Minimum) | AA | Operable | guideline-2-4.md#sc-2-4-11 |
| 2.4.12 | Focus Not Obscured (Enhanced) | AAA | Operable | guideline-2-4.md#sc-2-4-12 |
| 2.4.13 | Focus Appearance | AAA | Operable | guideline-2-4.md#sc-2-4-13 |
| 2.5.1 | Pointer Gestures | A | Operable | guideline-2-5.md#sc-2-5-1 |
| 2.5.2 | Pointer Cancellation | A | Operable | guideline-2-5.md#sc-2-5-2 |
| 2.5.3 | Label in Name | A | Operable | guideline-2-5.md#sc-2-5-3 |
| 2.5.4 | Motion Actuation | A | Operable | guideline-2-5.md#sc-2-5-4 |
| 2.5.5 | Target Size (Enhanced) | AAA | Operable | guideline-2-5.md#sc-2-5-5 |
| 2.5.6 | Concurrent Input Mechanisms | AAA | Operable | guideline-2-5.md#sc-2-5-6 |
| 2.5.7 | Dragging Movements | AA | Operable | guideline-2-5.md#sc-2-5-7 |
| 2.5.8 | Target Size (Minimum) | AA | Operable | guideline-2-5.md#sc-2-5-8 |
| 3.1.1 | Language of Page | A | Understandable | guideline-3-1.md#sc-3-1-1 |
| 3.1.2 | Language of Parts | AA | Understandable | guideline-3-1.md#sc-3-1-2 |
| 3.1.3 | Unusual Words | AAA | Understandable | guideline-3-1.md#sc-3-1-3 |
| 3.1.4 | Abbreviations | AAA | Understandable | guideline-3-1.md#sc-3-1-4 |
| 3.1.5 | Reading Level | AAA | Understandable | guideline-3-1.md#sc-3-1-5 |
| 3.1.6 | Pronunciation | AAA | Understandable | guideline-3-1.md#sc-3-1-6 |
| 3.2.1 | On Focus | A | Understandable | guideline-3-2.md#sc-3-2-1 |
| 3.2.2 | On Input | A | Understandable | guideline-3-2.md#sc-3-2-2 |
| 3.2.3 | Consistent Navigation | AA | Understandable | guideline-3-2.md#sc-3-2-3 |
| 3.2.4 | Consistent Identification | AA | Understandable | guideline-3-2.md#sc-3-2-4 |
| 3.2.5 | Change on Request | AAA | Understandable | guideline-3-2.md#sc-3-2-5 |
| 3.2.6 | Consistent Help | A | Understandable | guideline-3-2.md#sc-3-2-6 |
| 3.3.1 | Error Identification | A | Understandable | guideline-3-3.md#sc-3-3-1 |
| 3.3.2 | Labels or Instructions | A | Understandable | guideline-3-3.md#sc-3-3-2 |
| 3.3.3 | Error Suggestion | AA | Understandable | guideline-3-3.md#sc-3-3-3 |
| 3.3.4 | Error Prevention (Legal, Financial, Data) | AA | Understandable | guideline-3-3.md#sc-3-3-4 |
| 3.3.5 | Help | AAA | Understandable | guideline-3-3.md#sc-3-3-5 |
| 3.3.6 | Error Prevention (All) | AAA | Understandable | guideline-3-3.md#sc-3-3-6 |
| 3.3.7 | Redundant Entry | A | Understandable | guideline-3-3.md#sc-3-3-7 |
| 3.3.8 | Accessible Authentication (Minimum) | AA | Understandable | guideline-3-3.md#sc-3-3-8 |
| 3.3.9 | Accessible Authentication (Enhanced) | AAA | Understandable | guideline-3-3.md#sc-3-3-9 |
| 4.1.1 | Parsing (Obsolete and removed) | Deprecated | Robust | guideline-4-1.md#sc-4-1-1 |
| 4.1.2 | Name, Role, Value | A | Robust | guideline-4-1.md#sc-4-1-2 |
| 4.1.3 | Status Messages | AA | Robust | guideline-4-1.md#sc-4-1-3 |
Assessment heuristics
Per-criterion assessment heuristics, common failure patterns, and scope notes live inside the per-guideline reference files in references/. The Accessibility Skill Assessor subagent consumes the appropriate guideline-<n>-<m>.md#sc-<n>-<m>-<k> section when evaluating a finding against a specific success criterion.
Skill layout
SKILL.md— this file (skill entrypoint and roll-up table).references/— one markdown file per WCAG 2.2 guideline. Each file contains the guideline statement, a paraphrased intent for every success criterion under that guideline, and a canonical W3C source URL.
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