shift-left-testing

Installation
SKILL.md

Shift-Left Testing

<default_to_action> When implementing early testing practices:

  1. VALIDATE requirements before coding (testability, BDD scenarios)
  2. WRITE tests before implementation (TDD)
  3. AUTOMATE in CI pipeline (every commit triggers tests)
  4. FIX defects immediately - never let them accumulate

Quick Shift-Left Levels:

  • Level 1: Unit tests with each PR (developer responsibility)
  • Level 2: TDD practice (tests before code)
  • Level 3: BDD/Example mapping in refinement (requirements testing)
  • Level 4: Risk analysis in design (architecture testing) </default_to_action>

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Jan 24, 2026