cyberneticlibrary
← library

Validate UI across layouts and modes

qa-engineersubagentsetup L3★0
MF24026/eternova ↗
What it does

Write conventional commit messages

Best for

When specialized expertise is needed for this task type.

Inputs
  • · Running app/dev server
Outputs
  • · PNG screenshots (multiple viewports)
Requires
  • · Playwright MCP (browser automation)
  • · Read/Write file tools
Preconditions
  • · Dev server running on localhost
  • · Automated tests passing (PHPUnit/Playwright spec)
  • · Ollama running locally (if using local LLM)
Failure modes
  • · Chromium not found or browser crash
  • · Input validation fails (schema, types)
  • · Required checks failing on branch
Trust signals
  • · Provides concrete example output format
  • · Explicit accessibility standards (WCAG, a11y)
  • · Requires passing automated tests as prerequisite
  • · Provides verifiable checklist or rules
  • · Produces auditable, structured output format
  • · Validates across multiple conditions/viewports