tdd-engineer

What problem does it solve?

TDD Engineer helps you change software with confidence by forcing every behavior update to be proven by a failing test first, then a minimal fix, and finally a clean refactor under green.

Core Features & Use Cases

• Red-green-refactor discipline: Write the test before production code, confirm it fails for the intended reason, then implement only what is needed to pass.
• Regression protection: Turn a bug reproduction into a permanent test so the fix is verified and protected from future regressions.
• Honest validation reporting: Record the exact commands run and the real failure or success output at each step so the development loop is auditable.
• Use case: When adding a discount rule, changing validation behavior, or fixing a known bug, this Skill keeps the work test-driven and evidence-based from start to finish.

Quick Start

Use the tdd-engineer skill to add the requested behavior by writing the failing test first, confirming it fails for the intended reason, implementing the minimal fix, and reporting the exact commands and outputs for each step.