Spec Kit is an open-source toolkit that allows you to focus on product scenarios and predictable outcomes instead of vibe coding every piece from scratch. Den shows off what it is, how to get setup, and how to get started with spec drive development with GitHub Copilot.

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Spec Kit is a GitHub project that implements spec-driven development, helping developers create structured specifications before coding. It provides prompts and scripts that work with various AI coding agents (GitHub Copilot, Claude, etc.) to generate constitutions, functional specs, technical plans, and task breakdowns. The workflow involves establishing non-negotiable principles, clarifying requirements through AI-guided questions, creating technical plans with specific frameworks, and breaking work into implementable tasks. This approach provides better guardrails for AI code generation compared to unstructured prompting, making it suitable for production software that needs maintainability and consistency.

Plan, Specify, and Implement with Spec Kit