When to Apply: Reference when testing PHP applications across multiple layers (acceptance, functional, API), using Codeception modules, or configuring WebDriver-based browser testing in PHP. Triggers on "Codeception", "AcceptanceTester", "Cest", "Codeception PHP".
Playbook Deep Dive (9 sections): §1 Project Setup & Configuration · §2 Acceptance Tests (UI) · §3 API Tests · §4 Page Objects · §5 Database Testing · §6 Custom Helpers & Extensions · §7 CI/CD Integration · §8 Debugging Table · §9 Best Practices
The agent loads from 3 on-demand reference files (advanced-patterns.md, cloud-integration.md, playbook.md) containing detailed implementation guides, cloud integration patterns, debugging tables, and language-specific best practices.