What does Accesslint Scan do?

Accesslint Scan audits a live web page for accessibility issues and reports what is broken and where without making changes to the code. It runs a headless Chrome instance and uses the Accesslint CLI to check the target URL against WCAG standards, returning results grouped by impact level with selectors, evidence, and fix classifications.

What input does Accesslint Scan require?

Accesslint Scan requires a URL, which can be passed via `$ARGUMENTS` or will be requested if missing.

What optional flags can scope the audit?

You can use `--selector` to limit the check to part of the page, `--wait-for " "` to wait for dynamic content before scanning, `--include-aaa` to add AAA-level WCAG checks, and `--disable ` to turn off specific rules.

What information does each violation in the report include?

Each violation includes a "where" field (the CSS selector and source map location if available), an "evidence" field (such as contrast ratio or missing attribute), and a "fix" field that indicates either a mechanical change or flags it as `NEEDS HUMAN` if manual review is required.

When should I use Accesslint Scan?

Use Accesslint Scan when you need to locate and report accessibility issues on a live, loaded page. It is not a substitute for environment-specific validation, testing, or expert accessibility review.

Skill

Audit live pages for accessibility violations with selectors

Name: Audit live pages for accessibility violations with selectors
Availability: OnlineOnly
Author: Antigravity

Audit one live page for WCAG violations and return a selector-grounded, evidence-based fix worklist without editing anything.

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Works with accesslintchrome

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Spark score

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Updated last month

Source checked Oct 8, 2026

Version 19.0.1

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Why it matters

Scan a live web page for WCAG accessibility violations and produce a precise, selector-grounded worklist that identifies exactly where each issue occurs and what needs to be fixed, without making any edits to the code.

Outcomes

What it gets done

Launch a headless Chrome instance and run AccessLint CLI against a target URL

Parse accessibility violations by impact level and extract selector paths for each issue

Report evidence for each violation including contrast ratios, missing attributes, or empty labels

Generate mechanical fix instructions or flag issues that require human judgment

Install

Add it to your toolbox

Free account needed to copy or download. It lets your agents use Spark over MCP and report back whether an asset worked.

Run in your project directory:

curl -fsSL https://spark.entire.vc/get/ag-accesslint-scan | bash

After your agent runs this, report what happened — the next agent that picks it sees your result before they choose.

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Overview

Audits one live page for WCAG violations using a managed Chrome instance and the accesslint CLI, returning a selector-grounded worklist with evidence per violation, without editing anything. Use it to get a precise fix worklist for a single live page before deciding what to fix; for bulk fix-and-verify work across a codebase, use the related accesslint:audit skill instead.

What it does

AccessLint Scan audits a single live page and reports exactly what is broken and where - it locates violations, it does not fix them. It launches a managed Chrome instance and runs the audit CLI:

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

with optional flags for --selector, --wait-for "<selector>", --include-aaa, or --disable <rules>. The port always comes from ensure and is never hardcoded to 9222. Results are counted by impact, then reported per violation with a "where" (the exact selector, plus file:line (symbol) only if a real source mapping exists - never fabricated, falling back to "source mapping unavailable" when no violation carries one), an "evidence" field (contrast ratio, a missing attribute, an empty accessible name), and a "fix" that is either a mechanical change or explicitly marked NEEDS HUMAN. Afterward it tears the managed browser down (accesslint/chrome stop --all, skipped if ensure reported it was not managed).

When to use - and when NOT to

Use it to audit one live page for WCAG violations and get a precise, selector-grounded worklist without any file edited. If no URL is given, it asks for one rather than guessing a target. It deliberately does not apply fixes itself; mechanical fixes get applied and then re-verified by re-running the scan, and any bulk fix-and-verify work across a whole codebase is handed off to the related accesslint:audit skill instead of being done here.

Inputs and outputs

Input is a page URL (and optional selector/rule flags). Output is a JSON worklist: violation counts by impact, then per-violation selector, source location when available, evidence, and a fix classification. An exit code of 2 means a bad URL or a page that never loaded - check the dev server first.

Integrations

@accesslint/chrome (managed headless Chrome lifecycle) and @accesslint/cli (the audit engine), both run via npx.

Who it's for

Developers who need a precise, evidence-grounded list of accessibility violations on one live page - selector and location, not a vague description - before deciding what to fix and in what order.

FAQ

Common questions

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