Testing & TDD Skills Test-driven development workflows and testing infrastructure for Apple platform apps. Works with both new and existing codebases. When This Skill Activates Use this skill when the user: - Wants to do TDD (test-driven development) with AI-generated code - Needs to add tests before refactoring existing code - Wants to fix a bug using the red-green-refactor cycle - Needs test infrastructure (factories, mocks, contracts) - Asks about snapshot/visual regression testing - Wants to ensure AI-generated code is correct via tests Available Skills For Existing Codebases characteriza…