One collection for architecture and behavior
Keep C4 diagrams and Gherkin features together so product intent stays visible as the work evolves.
Next-generation specification-writing
Vibe your intent.
Spec your app.
When product intent lives in scattered docs, tickets, and chat threads, teams drift and AI builds from stale context. Spec9 keeps one living specification at the center so what you agree on is what ships. Join the waitlist now: only the first 1,000 signups lock in lifetime free access.
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What Spec9 gives you
Structured, validated, readable
Spec9 helps teams capture specs in a consistent format that is easy to review and share.
Built for humans and AI agents
Cursor, Copilot, and Claude connect via MCP to the live collection while they implement.