Spec Kit
MIT Spec-Driven Development toolkit — any AI coding agent (GitHub)
AI Agents / Coding Agents · OSS/MIT · 142k
Reviewed 2026-09-15 · last push 2026-10-16 · repo checked 2026-10-19
What's Good
MIT (github/spec-kit). Ready-to-use SDD process (or bring your own): specs, plans, and agent-friendly artifacts so coding agents implement against intent instead of vibes. Docs at github.github.io/spec-kit. Agent-agnostic — Claude Code, Codex, Copilot, and friends. Org-extensible and community-driven.
The Catch
Vs Claude Code / Codex / OpenHands (coding agents): Spec Kit is the SDD workflow primitive — process and toolkit, not a coding agent seat. You still bring the agent, models, and repo discipline. GitHub org project, not a hosted product SLA.
Verdict
MIT SDD toolkit. Specs before code; not a coding agent itself.
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