Secure, Fast, and Extensible Sandbox runtime for AI agents.
OpenSandbox is a sandbox platform that gives AI applications APIs, SDKs, and runtimes for creating isolated environments, running commands, and managing files. It is used for coding and GUI agents, browser automation, code execution, agent evaluation, and reinforcement-learning training across Docker and Kubernetes environments. The catalogue entries provide instructions and a skill for working with these sandboxes.
Latest release release-1.2.0 — OpenSandbox 1.2.0 · 27 Oct 2026
3 files for Codex, OpenCode and Claude Code: OpenSandbox AGENTS.md, OpenSandbox CLAUDE.md, opensandbox-release-notes — 1,966 tokens loaded in every session.
AGENTS.md A 1,945 tok CLAUDE.md A 21 tok .agents/skills/opensandbox-release-notes/SKILL.md A 62 tok These files are opensandbox-group/OpenSandbox's own configuration — they tell Codex, OpenCode and Claude Code how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.