#spec-driven-development

1 post tagged “spec-driven-development”.

• Sep 26, 2026 · Engineering · 19 min read

  Spec-Driven Development: How It Differs from TDD and BDD, and How to Run It with AI Agents

  What spec-driven development actually adds when an AI agent writes the code — one feature built three ways with TDD, BDD and SDD, how the three stack, and how to run the loop in Claude Code, GitHub Copilot, Cursor, Spec Kit and Kiro.