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spec-driven-dev

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Use when starting any non-trivial feature, refactor, or new project that will touch more than one file. Drives an AI coding agent through a gated Spec → Plan → Build → Test → Review → Ship lifecycle so work is specified before it is built, verified before it is reviewed, and reviewed before it ships.

skills/spec-driven-dev/SKILL.md

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# Spec-Driven Development

A gated, six-phase workflow for shipping real software with an AI coding
agent. Each phase has a goal, exit criteria, and a rationalization table for
the excuses an agent will invent to skip it. Do not advance until the current
gate is closed.

## When to Use

- Starting a new project, service, or significant feature
- Requirements arrive as a paragraph, screenshot, or vague idea
- The change touches more than one file or subsystem
- You are about to make an architectural decision
- An agent is about to write more than ~100 lines without a plan