When to Apply: Reference when writing BDD tests in C#/.NET with SpecFlow, using [Binding] attributes for step definitions, or integrating Gherkin with Visual Studio. Triggers on "SpecFlow", "C# BDD", ".NET BDD", "step bindings", "[Binding]".
Playbook Deep Dive (9 sections): §1 Project Setup · §2 Feature Files · §3 Step Definitions · §4 Page Objects · §5 Hooks & Dependency Injection · §6 Scoped Bindings & Transforms · §7 CI/CD Integration · §8 Debugging Table · §9 Best Practices
The agent loads from 2 on-demand reference files (advanced-patterns.md, playbook.md) containing detailed implementation guides, cloud integration patterns, debugging tables, and language-specific best practices.