OpenSpec

A universal CLI toolkit for serious AI-assisted development. Works across Cursor, Claude Code, Antigravity, Codex, and more.

Kiro is an agentic IDE that works alongside you from prototype to production.

Spec-driven development (SDD) for your team's workflow. Kiro style commands that enforce structured requirements→design→tasks workflow and steering, transforming how you build with AI. Support Claude Code, Codex, Opencode, Cursor, Github Copilot, Gemini CLI and Windsurf.

AI coding dream team of agents for VS Code. Claude Code + openai Codex collaborate in brainstorm mode, debate solutions, and synthesize the best approach for your code.