Scenario Testing

About

Scenario Testing is a specialized capability for Claude Code that enforces high-fidelity validation by prioritizing real-world interactions over synthetic mocks. It provides a structured workflow for creating disposable, self-contained test scripts in a gitignored .scratch/ directory and documenting successful patterns in a persistent scenarios.jsonl file. By adhering to a truth hierarchy where real behavior is the ultimate authority, this skill helps developers verify integrations, authentication flows, and API contracts against actual implementations to prevent bugs caused by incorrect assumptions in mock objects.

Key Features

• Integrated workflow for setup, execution, and cleanup of test data
• No-mock architecture for high-fidelity end-to-end validation
• Automated truth hierarchy prioritizing real behavior over unit tests
• Gitignored .scratch/ directory for disposable proof-of-concept scripts
• Structured scenarios.jsonl format for documenting regression patterns
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Use Cases

• Verifying API contracts and third-party service integrations
• Prototyping feature behavior with live dependencies before committing code
• Validating complex authentication flows with real tokens and databases