Useful Links
A collection of links to spec-driven development tools, an external comparison that helps you pick the right one, and collections of practices for working with agents.
Tools covered in the book
- OpenSpec. The official site is openspec.dev, and there is a repository.
- Superpowers. The source code and instructions are in the repository.
- Matt Pocock's Skills. The set of procedures is in the repository.
Other SDD tools
The following tools are mentioned in the book without dedicated reviews.
- GitHub Spec Kit ties the SDD phases together with separate commands. See the site and the repository.
- Kiro supports SDD in an IDE. See the official site.
- Tessl uses specifications during development. See the official site.
- BMAD-Method organizes the work of role agents. See the repository.
- Spec Kitty extends Spec Kit with git worktree support. See the repository.
- Traycer Desktop brings agents, plans, execution and review into a shared workspace. The IDE extension retires on October 31, 2026; see the Desktop migration.
- Get Shit Done drives a project through phases: discussion, specification, plan, execution and verification. See the repository.
- Compound Engineering from Every ends each cycle with a step that saves what was learned for future tasks. See the repository.
- HumanLayer offers commands for the research → plan → implement cycle. See the repository.
Tool comparison
- spec-compare compares SDD tools. There is an interactive comparison and the research repository.
Practices for working with agents
- Claude Code best practices are Anthropic's official recommendations. See the documentation.
- Codex best practices are OpenAI's official recommendations: framing the task, AGENTS.md, skills, review and common mistakes. See the guide.
- claude-code-best-practice and codex-cli-best-practice collect tips from the tool developers and the community, with links to the original publications. See the repositories for Claude Code and for Codex.
- awesome-codex-cli is a catalog of tools, skills and plugins for Codex. See the repository.