Open-source agent sandbox infrastructure for parallel coding agents: isolated workspaces, MCP/CLI control, observability, and atomic publication.
Latest release v0.1.4 · 30 Jul 2026
2 files for Codex, OpenCode and Claude Code: ephemeral-sandbox AGENTS.md, ephemeral-sandbox CLAUDE.md — 1,317 tokens loaded in every session.
AGENTS.md A 114 tok CLAUDE.md A 1,203 tok These files are Ephemeral-AI-Lab/ephemeral-sandbox'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.