security-visual-testing

Security-first visual testing combining URL validation, PII detection, and visual regression with parallel viewport support. Use when testing web applications that handle sensitive data, need visual regression coverage, or require WCAG accessibility compliance.

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Dépôt: proffesor-for-testing/agentic-qe
Dernière activité de la source: 12 juin 2026 à 13:29
Langue détectée de SKILL.md: anglais
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name	security-visual-testing
description	Security-first visual testing combining URL validation, PII detection, and visual regression with parallel viewport support. Use when testing web applications that handle sensitive data, need visual regression coverage, or require WCAG accessibility compliance.
category	specialized-testing
priority	high
tokenEstimate	1400
agents	["qe-visual-tester","qe-security-scanner","qe-accessibility-auditor"]
implementation_status	stable
optimization_version	1
last_optimized	"2026-01-21T00:00:00.000Z"
dependencies	["visual-testing-advanced","security-testing","accessibility-testing"]
quick_reference_card	true
tags	["security","visual-testing","pii","accessibility","wcag","parallel-viewport","regression"]
trust_tier	3
validation	{"schema_path":"schemas/output.json","validator_path":"scripts/validate-config.json","eval_path":"evals/security-visual-testing.yaml"}

Security Visual Testing

Browser engine

Uses the qe-browser fleet skill (.claude/skills/qe-browser/) for all browser automation. The Vibium engine (10MB Go binary, WebDriver BiDi) is installed automatically by aqe init. For security-visual workflows, qe-browser adds two things on top of stock visual testing: check-injection.js (scans page content for prompt-injection patterns before screenshots are stored) and assert.js (16 typed checks including no_failed_requests for detecting data-leak requests).

# Before storing any screenshot, scan the page
vibium go "$TARGET_URL"
vibium wait load
node .claude/skills/qe-browser/scripts/check-injection.js --include-hidden
INJ=$?
if [ $INJ -ne 0 ]; then
  echo "Prompt-injection findings — do NOT store screenshot"
  exit $INJ
fi
# Safe to proceed with visual-diff
node .claude/skills/qe-browser/scripts/visual-diff.js --name "${PAGE_NAME}"

<default_to_action> When performing security-aware visual testing:

VALIDATE URLs before navigation (check for malicious patterns)
SCAN for PII before saving screenshots (mask sensitive data)
CAPTURE parallel viewports (mobile, tablet, desktop)
COMPARE against baselines (detect visual regressions)
AUDIT accessibility (WCAG 2.1 AA compliance)

Quick Security-Visual Checklist:

URL validation (no javascript:, data:, file: schemes)
PII detection (emails, phones, SSN, credit cards, API keys)
Visual regression (diff threshold < 0.1%)
Viewport coverage (320px, 768px, 1024px, 1440px)
Accessibility score (> 90% axe-core pass rate)

Critical Success Factors:

Always mask PII before storing screenshots
Test across all target viewports in parallel
Store baselines in version control
Run accessibility audits on every visual change </default_to_action>

Scenario	Use This Skill?	Why
Testing login pages	Yes	Contains PII (passwords, emails)
Visual regression suite	Yes	Parallel viewport + baseline comparison
Payment forms	Yes	Credit card data needs masking
Public marketing pages	Maybe	Only if sensitive data possible
API-only testing	No	Use security-testing skill instead

Capability	Description	Performance
URL Validation	Block malicious URLs before navigation	<5ms
PII Detection	Find 6+ types of sensitive data	<100ms
Parallel Viewports	Test 4 viewports simultaneously	4x faster
Visual Regression	Pixel-diff with configurable threshold	<500ms
Accessibility Audit	WCAG 2.1 A/AA/AAA compliance	<2s

# Run complete security + visual audit
aqe test visual-audit --url https://example.com --security --accessibility

# Capture screenshot with automatic PII masking
aqe screenshot --url https://example.com/profile --pii-safe

# Test visual consistency across viewports
aqe test responsive --url https://example.com --viewports mobile,tablet,desktop

import { BrowserSecurityScanner } from '@agentic-qe/v3';

const scanner = new BrowserSecurityScanner(memory, {
  urlValidation: { enabled: true },
  piiDetection: { enabled: true, maskBeforeSave: true },
  parallelViewports: { maxConcurrent: 4 }
});

const result = await scanner.scanUrl('https://example.com', {
  viewports: ['mobile', 'tablet', 'desktop'],
  accessibility: true
});

import { TrajectoryAdapter } from '@agentic-qe/v3';

const adapter = new TrajectoryAdapter(memory);

// Record testing trajectory for learning
await adapter.startTrajectory('security-visual-test', {
  url: 'https://example.com',
  testType: 'security-visual'
});

// ... perform tests ...

await adapter.endTrajectory(trajectoryId, {
  success: true,
  piiFound: 3,
  visualRegressions: 0,
  accessibilityScore: 95
});

aqe/security-visual/
├── baselines/*          - Visual regression baselines
├── screenshots/*        - Captured screenshots (PII masked)
├── reports/*            - Audit reports
└── trajectories/*       - Learning trajectories

const fleet = await FleetManager.coordinate({
  strategy: 'security-visual-audit',
  agents: [
    'qe-visual-tester',      // Visual regression
    'qe-security-scanner',   // URL/PII scanning
    'qe-accessibility-auditor' // WCAG compliance
  ],
  topology: 'parallel',
  maxConcurrent: 4
});

Error	Cause	Resolution
`URL_BLOCKED`	Malicious URL pattern detected	Check URL, remove javascript:/data:
`PII_DETECTED`	Sensitive data found in screenshot	Enable masking or redact manually
`BASELINE_MISSING`	No baseline for comparison	Run with `--update-baseline` first
`VIEWPORT_TIMEOUT`	Browser didn't respond	Increase timeout or reduce parallel
`ACCESSIBILITY_FAILED`	WCAG violations found	Review violations, fix issues