accesslint-scan

name	accesslint-scan
description	Audit a live page for accessibility issues and locate each violation precisely — pass a URL, a config target name (e.g. `accesslint:scan dev`), or nothing to use the default target from accesslint.config.json. Ensures a debuggable Chrome, runs the @accesslint/core engine via CDP, and returns a worklist of live-DOM WCAG violations grounded to each violation's DOM selector and source file:line. Locates; doesn't edit — output drives fixes by Claude. Use it for "is this page accessible", or to verify a UI change. For diffing against uncommitted changes or a branch, use the `diff` skill.
argument-hint	[target|url]
allowed-tools	Bash, Read, Glob, Grep, Skill, Task

Audit a live page and report what's broken and where. Locate; don't fix.

$ARGUMENTS is a URL, a config target name (dev, storybook, …), or empty to audit the default target from accesslint.config.json. If it's empty and no config exists, ask for a URL or suggest npx @accesslint/cli init to set targets up.

1. Audit

PORT=$(npx -y @accesslint/chrome@latest ensure | node -e 'process.stdin.on("data",d=>process.stdout.write(""+JSON.parse(d).port))')
npx -y @accesslint/cli@latest scan <target> --port "$PORT" --format json

<target> is the URL or config target name from $ARGUMENTS; omit it (don't pass "") to audit the config's default target. Flags as needed: --selector, --wait-for "<selector>", --include-aaa, --disable <rules> — or pin them per-target in accesslint.config.json.

2. Report

Counts by impact, then one entry per violation:

• where — selector verbatim + file:line (symbol) if source is present — never fabricate. If no violation has source, note "source mapping unavailable — located by selector only".
• evidence — contrast ratio, missing attribute, empty name
• fix — mechanical change or NEEDS HUMAN

Don't edit. For fixes: apply mechanical ones then re-run to verify; for bulk work hand off to accesslint:audit.

3. Tear down

npx -y @accesslint/chrome@latest stop --all  # skip if ensure reported "managed":false

Gotchas

• ensure always determines the port — never hardcode 9222.
• CLI exit 2 = bad URL/target or page never loaded; check the dev server. An unknown target name makes the CLI list the available targets from accesslint.config.json.