MSW Best Practices

Comprehensive API mocking guide for MSW v2 applications (current: MSW 2.15), designed for AI agents and LLMs. Contains 48 rules across 8 categories, prioritized by impact to guide automated refactoring and code generation.

When to Apply

Reference these guidelines when:

• Setting up MSW for testing or development
• Writing or organizing request handlers
• Configuring test environments with MSW
• Mocking REST or GraphQL APIs
• Debugging handler matching issues
• Testing error states and edge cases

Rule Categories by Priority