Tracking spec-driven development in the wild
An open directory tracking spec-driven development frameworks and real-world projects over time, to evaluate how effective different approaches are in practice.
Featured frameworks
GitHub Spec Kit
establishedOpen-source toolkit from GitHub that scaffolds a phase-gated, spec-first workflow into any of 40+ AI coding agents.
- Claude Code
- GitHub Copilot
- Cursor
- Gemini CLI
- +8 more
OpenSpec
establishedChange-folder-based SDD for AI coding assistants — fluid, iterative, and explicitly built for brownfield codebases, not just greenfield.
- Claude Code
- Cursor
- Codex
- Gemini CLI
- +8 more
BMAD-Method
establishedAgile AI development framework that simulates a full team of specialized agent personas across a four-phase lifecycle, scaling its ceremony to project complexity.
- Claude Code
- Cursor
- Codex CLI
- Gemini Gems (planning)
- +1 more
Recently active tracked projects
Akka.NET
drift: noneThe canonical actor-model implementation for .NET — a major, long-running OSS project routing its modernization work through OpenSpec change folders.
OpenSpec
drift: noneThe OpenSpec CLI and toolkit itself, developed with its own change-folder workflow — "OpenSpec is built with OpenSpec".
Spirit of Kiro
drift: highA game built with and powered by generative AI by the Kiro team — Kiro's own public showcase project.
Help track SDD in the wild
This observatory is community-maintained. Repository metrics update automatically every day; the qualitative assessments — spec structure, drift, rework, maintenance outcomes — need human eyes. Submit a framework or project, or help review an existing one. Read how we track to see what goes into each page.