OpenSpec
Spec-driven development artifacts for AI coding agents
About
OSS framework that organizes AI-assisted coding into version-controlled artifacts — proposals, specifications, designs, and task checklists — written before implementation begins. Integrates with 25+ AI coding assistants so humans and agents work from the same source of truth.
Choose OpenSpec when…
- •You want AI agents to write a spec/proposal before touching code
- •You're coordinating multiple AI coding assistants and need one shared source of truth
- •You want spec artifacts kept in version control alongside the code they describe
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Spec writing, API design, architecture diagrams, and contract-first tooling — the upstream layer before code is written
Stack Genome Detection
AIchitect's Genome scanner detects OpenSpec in your project via these signals:
@fission-ai/openspecopenspec/Integrates with (1)
OpenSpec ships a Claude Code integration that drives the proposal → spec → design → tasks workflow directly from Claude Code's agent loop.
→ Get spec-driven development inside Claude Code without leaving the terminal.
Alternatives to consider (1)
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