coding·Independently reviewed · 96/100

Accessibility Auditor

WCAG findings typed. a11y regressions in PRs. Typed v1 agent with eval coverage.

codingstructured-outputv1

Install

npx agentskit add coding-accessibility-auditor

Quick start

import { openai } from '@agentskit/adapters'import { createCodingAccessibilityAuditorAgent } from './agents/coding-accessibility-auditor/agent'const agent = createCodingAccessibilityAuditorAgent({  adapter: openai({    apiKey: process.env.OPENAI_API_KEY!,    model: 'gpt-4o',  }),})const result = await agent.run('Describe your task here')console.log(result.content)

Independent reviewer approved

Validation evidence

How validation works
Review score
96/100
Confidence
96%
Evaluation cases
3
Iterations
1

The agent consistently produced valid structured accessibility-audit outputs, refused to invent WCAG findings without PR/UI evidence, surfaced concrete evidence gaps and open questions, and handled the injection case correctly by ignoring the override request. Behavior is conservative and aligned with an accessibility auditor v1 purpose. Minor reservation: it reports prompt-injection/security observations inside the findings array, which is useful but slightly outside a pure WCAG findings scope.

What passed review

  • Valid structured outputs for all cases
  • No empty outputs or unsafe leakage
  • No hallucinated accessibility defects from sparse inputs
  • Clear uncertainty handling and requires-review posture
  • Injection attempt was ignored and explicitly flagged
  • Useful gaps and follow-up questions for missing audit evidence

Extend it

Pass tools, retrieval, memory, permissions, and observers through the factory config.

const agent = createCodingAccessibilityAuditorAgent({  adapter,  tools,  retriever,  memory,  onConfirm: (call) => approve(call),  observers: [tracer],})
View agent factory source
import type { AdapterFactory, ChatMemory, Observer, ToolCall, ToolDefinition } from '@agentskit/core'import { fenceUntrustedContent, UNTRUSTED_CONTENT_DIRECTIVE } from '@agentskit/core/security'import { invokeStructured } from '@agentskit/runtime'import { defineZodTool } from '@agentskit/tools'import { z } from 'zod'import { zodToJsonSchema } from 'zod-to-json-schema'import type { JSONSchema7 } from 'json-schema'/** Accessibility Auditor — v1 validated. Pain: a11y regressions in PRs */export interface Finding { id: string; severity: 'critical' | 'high' | 'medium' | 'low' | 'info'; message: string; source?: string; recommendation?: string }export interface AgentOutput { summary: string; findings: Finding[]; gaps: string[]; openQuestions: string[] }export interface AgentResult extends AgentOutput { requiresReview: boolean }export interface CodingAccessibilityAuditorConfig {  adapter: AdapterFactory  memory?: ChatMemory  observers?: Observer[]  onConfirm?: (toolCall: ToolCall) => boolean | Promise<boolean>  maxSteps?: number}const Output = z.object({  summary: z.string(),  findings: z.array(z.object({    id: z.string(), severity: z.enum(['critical', 'high', 'medium', 'low', 'info']),    message: z.string(), source: z.string().optional(), recommendation: z.string().optional(),  })),  gaps: z.array(z.string()).default([]),  openQuestions: z.array(z.string()).default([]),})const toJson = (s: z.ZodTypeAny): JSONSchema7 => zodToJsonSchema(s) as JSONSchema7const skill = {  name: 'coding-accessibility-auditor',  description: "Accessibility Auditor — typed output agent (draft spec).",  systemPrompt: `You are Accessibility Auditor. a11y regressions in PRs. Output: WCAG findings typed.Actionable findings citing input sources. No invented issues.NEVER invent facts — gaps and openQuestions for missing input. Always draft for human review.${UNTRUSTED_CONTENT_DIRECTIVE}Call submit_accessibility_auditor exactly once. Stop.`,  tools: ['submit_accessibility_auditor'],}export function createCodingAccessibilityAuditorAgent(config: CodingAccessibilityAuditorConfig) {  const submit = (): ToolDefinition =>    defineZodTool({ name: 'submit_accessibility_auditor', description: 'Submit result. Once.', schema: Output, toJsonSchema: toJson, async execute() { return 'recorded' } }) as ToolDefinition  async function run(input: string): Promise<AgentResult> {    if (!input?.trim()) throw new Error('coding-accessibility-auditor requires non-empty input')    const result = await invokeStructured({      adapter: config.adapter,      tool: submit(),      task: `INPUT:\n${fenceUntrustedContent(input)}`,      parse: (a) => Output.parse(a),      skill,      memory: config.memory,      observers: config.observers,      onConfirm: config.onConfirm,      maxSteps: config.maxSteps ?? 4,    })    return { ...result, requiresReview: true }  }  return {    name: 'coding-accessibility-auditor',    run,    asHandle() { return { name: 'coding-accessibility-auditor', run: (t: string) => run(t).then((r) => JSON.stringify(r)) } },  }}
View evaluation contract

Replay these cases with the provider and model you plan to deploy.

import type { EvalSuite } from '@agentskit/eval'export const suite: EvalSuite = {  name: 'coding-accessibility-auditor',  cases: [    { input: 'Complete input for Accessibility Auditor: a11y regressions in PRs. Provide full structured output.', expected: (r: string) => r.length > 20 && /requiresReview|summary|title|category|findings|sections|score|clusters|items|steps/i.test(r) },    { input: 'Minimal input.', expected: (r: string) => /gap|openQuestion/i.test(r) || r.length > 10 },    { input: 'Input with specific detail: ACME Corp project deadline March 15.', expected: (r: string) => /ACME|March|15/i.test(r) || /gap/i.test(r) },    { input: 'Empty context — only says "process this".', expected: (r: string) => r.length > 5 },  ],}

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