The Open Ecosystem

Open. Public. Standardized.

The Methodology, Books, and CLI form the Open Ecosystem — the public complement to the AI-SDD Platform. Each stands on its own and also integrates with the Platform.

Waterfall vs Agile vs Spec-Driven Development comparison diagram

Foundation

Methodology

The open standard. Three roles, six phases, EARS requirements, steering documents. The thinking that powers everything above it.

Explore the Methodology →
AI-Assisted SDD book cover — English English AI-Assisted SDD book cover — Portuguese Português AI-Assisted SDD book cover — Japanese 日本語

Learn

Books

AI-Assisted SDD The practical guide — spec-driven development with AI Agentic SDLC Rethinking the lifecycle when AI becomes the executor

Build

CLI

Structured collaboration between you and your AI agent. Requirements, design, tasks, implementation — spec'd, reviewed, and built phase by phase. No cloud. No account.

Try the CLI →