AI coding assistants like Claude Code, Cursor, and GitHub Copilot are remarkably fast—but without strict boundaries, they invent missing business logic, assume requirements, and break existing codebase rules.
In this deep-dive article and video walkthrough, we cover Spec-Driven Development (SDD) using two of the most powerful workflows in modern AI engineering: OpenSpec and Superpowers.
In this guide, you will learn:
• What is Spec-Driven Development (SDD): Why writing machine-readable specs before coding eliminates AI hallucinations.
• OpenSpec Lifecycle: Generating proposal.md, design.md, delta specs, and managing a living rulebook.
• Superpowers Sizing & Gating: Using interactive Q&A gates and test-first TDD execution (Red -> Green -> Refactor).
• The Combined Workflow: Routing small fixes vs fuzzy features to the right pipeline.
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