← Use cases · Coding agents & IDE assistants
AI agent tools for spec driven development
Short answer: Our top pick for spec driven development: gsd-core, with the highest AgentPick Score (83/100) among tools tagged "spec-driven-development". Runners-up: thinkrail (66) and agtx (63). Compare what each does, its license and how recently it was updated below.
| # | Tool | What it does | Score | Stars | License | Updated |
|---|---|---|---|---|---|---|
| #1 | gsd-core | Git. Ship. Done - Core | 83/100 | ★ 11k | MIT | 14 Oct 2026 |
| #2 | thinkrail | Vibe code with pi in a lightweight, real IDE that customises itself around the way you work — The Vibe You Need | 66/100 | ★ 517 | Apache-2.0 | 14 Oct 2026 |
| #3 | agtx | 🏄🏼♂️ The blackboard for coding agents - agentic development environment for claude code, codex, cursor, opencode, grok and more. | 63/100 | ★ 1.7k | Apache-2.0 | 2 Oct 2026 |
| #4 | cc-sdd | Turn approved specs into long-running autonomous implementation. A minimal, adaptable SDD harness with Agent Skills for Claude Code, Codex, Cursor, Co… | 61/100 | ★ 3.7k | MIT | 13 Oct 2026 |
| #5 | ai-factory | You want to build with AI, but setting up the right context, prompts, and workflows takes time. AI Factory handles all of that so you can focus on wha… | 56/100 | ★ 1.1k | See repo | 7 Oct 2026 |
| #6 | cavekit | Frozen — compressed spec-driven development plugin for Claude Code. Still works; active development moved to JuliusBrussee/caveman. | 48/100 | ★ 1.2k | MIT | 14 Aug 2026 |
| #7 | skills | Reusable AI agent skills for software factories: explore ideas, write specs, implement, review, and run autonomous research. Works with Claude Code, C… | 40/100 | ★ 1.3k | MIT | 14 Oct 2026 |
| #8 | spectra-app | Spec-driven development for coding agents — a desktop app, a CLI, and skills for Codex, Claude Code, Cursor, Copilot, Antigravity and Junie | 40/100 | ★ 751 | See repo | 13 Sept 2026 |
Source: each project's public GitHub repository (description, stars, license, last push). Listed tools aren't tested or ranked by AgentPick.
How to choose
- Check which models and providers it supports.
- Prefer tools that show diffs and ask before running commands.
- Look for recent commits: coding agents change fast.
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