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testland/axe-a11y

Automated accessibility scanning across the five engines - axe-core (primary), pa11y, Lighthouse a11y, WAVE, and IBM Equal Access. Authors and runs axe-core scans via the `axe.run()` JavaScript API or the @axe-core/playwright / @axe-core/cli wrappers, parses `violations[]` into per-rule severity, configures rule disable / disable-by-tag patterns, and emits CI-gateable output; references/ carry the pa11y CLI (htmlcs + axe runners), Lighthouse CI `categories:accessibility` assertions, the WAVE API / overlay, and IBM Equal Access (Section 508) with their verified CLI / API / config. Use for any automated a11y scanner setup - axe-core for JS/TS UI test suites on every PR, and the references for CLI-only, Lighthouse-pipeline, WebAIM-branded, or Section 508 scanning.

75

Quality

94%

Does it follow best practices?

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SecuritybySnyk

Passed

No findings from the security scan

Overview
Quality
Evals
Security
Files

Quality

Content

86%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

The body is highly actionable with executable examples across frameworks and well-structured one-level-deep references. It is slightly verbose in the Overview and could tighten its workflow validation checkpoints.

Suggestions

Trim the Overview's prose about what axe-core is ("an accessibility testing engine for websites and other HTML-based user interfaces maintained by Deque") since Claude already knows this; keep only the citation-backed 57% figure.

Deduplicate the 'persist the raw accessibilityScanResults JSON as a CI artifact' instruction, which appears in both the How-to-use list and the CI integration section.

Add an explicit per-step verify checkpoint in 'Authoring scans' (e.g., assert the wrapper loaded axe before `.analyze()`) to elevate workflow clarity to a full feedback-loop checklist.

DimensionReasoningScore

Conciseness

Mostly efficient with executable code and a lean numbered workflow, but the Overview paraphrases what axe-core is and a few points (persisting the results JSON as an artifact) are restated across sections, so it sits below the 'every token earns its place' anchor.

4 / 5

Actionability

Provides multiple copy-paste-ready executable blocks (raw `axe.run()`, Playwright `AxeBuilder` with `.withTags()`, Cypress `cypress-axe`, install, CI yaml, `jq` triage) covering common cases, matching the fully-executable anchor.

5 / 5

Workflow Clarity

The 'How to use' section gives a clear 7-step sequence with the ratchet gate as an explicit checkpoint and a worked-example feedback loop, but lacks per-step verify checkpoints, fitting 'clear sequence with most checkpoints present; minor validation gaps' rather than a full checklist.

4 / 5

Progressive Disclosure

A clear overview points to one-level-deep, verified reference files (pa11y, lighthouse-a11y, wave, ibm-equal-access, results-and-config) via a well-signaled scanner table and References section, with per-engine detail appropriately split out.

5 / 5

Total

18

/

20

Passed

Description

100%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

The description is comprehensive and well-structured, clearly stating concrete capabilities, explicit use-when triggers with branched engine routing, and a distinct niche. It scores at the top of every dimension.

DimensionReasoningScore

Specificity

Lists multiple concrete actions across the scanning lifecycle ("Authors and runs axe-core scans via the `axe.run()` JavaScript API or the @axe-core/playwright / @axe-core/cli wrappers, parses `violations[]` into per-rule severity, configures rule disable / disable-by-tag patterns, and emits CI-gateable output"), matching the comprehensive-coverage anchor.

5 / 5

Completeness

Explicitly answers both what (the action list) and when ("Use for any automated a11y scanner setup - axe-core for JS/TS UI test suites on every PR, and the references for CLI-only, Lighthouse-pipeline, WebAIM-branded, or Section 508 scanning") with concrete trigger phrases.

5 / 5

Trigger Term Quality

Comprehensive natural terms including synonyms ("accessibility scanning", "a11y scanner") and named tools/standards (axe-core, pa11y, Lighthouse a11y, WAVE, IBM Equal Access, Section 508, WCAG), exceeding the 'good coverage, a few missing' anchor.

5 / 5

Distinctiveness Conflict Risk

Clear niche (automated a11y scanning across five named engines) with engine-specific routing triggers and explicit separation from manual screen-reader testing, giving minimal conflict risk.

5 / 5

Total

20

/

20

Passed

Validation

100%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation16 / 16 Passed

Validation for skill structure

No warnings or errors.

Reviewed

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