run_accessibility_audit
Audit web page accessibility to identify and fix compliance issues for users with disabilities, ensuring inclusive digital experiences.
Instructions
Run an accessibility audit on the current page
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
Implementation Reference
- index.js:843-874 (handler)The main handler function that runs an accessibility audit by injecting JavaScript into the browser to check for images without alt text, inputs without labels, and presence of headings.
async runAccessibilityAudit() { await this.ensureChromium(); const result = await this.sendCDPCommand('Runtime.evaluate', { expression: ` const results = []; const imagesWithoutAlt = Array.from(document.querySelectorAll('img:not([alt])')).length; if (imagesWithoutAlt > 0) { results.push(\`Found \${imagesWithoutAlt} images without alt text\`); } const inputsWithoutLabels = Array.from(document.querySelectorAll('input:not([aria-label]):not([id])')).length; if (inputsWithoutLabels > 0) { results.push(\`Found \${inputsWithoutLabels} inputs without proper labels\`); } const headings = Array.from(document.querySelectorAll('h1, h2, h3, h4, h5, h6')); if (headings.length === 0) { results.push('No heading structure found on page'); } JSON.stringify(results.length > 0 ? results : ['Basic accessibility checks passed']); `, returnByValue: true }); const auditResults = JSON.parse(result.result?.value || '[]'); return { content: [{ type: 'text', text: `Accessibility Audit Results:\\n${auditResults.join('\\n')}` }], }; } - index.js:279-286 (registration)Tool registration in the ListToolsRequestSchema response, defining the tool name, description, and empty input schema (no parameters required).
{ name: 'run_accessibility_audit', description: 'Run an accessibility audit on the current page', inputSchema: { type: 'object', properties: {}, }, }, - index.js:282-285 (schema)Input schema for the tool, which accepts an empty object (no required parameters).
inputSchema: { type: 'object', properties: {}, }, - index.js:379-380 (registration)Dispatcher case in the CallToolRequestSchema handler that routes calls to the runAccessibilityAudit method.
case 'run_accessibility_audit': return await this.runAccessibilityAudit();