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sandbox-claude-inside

100 / 100 · Low risk

Fine to try.

By arbiterForge/codeArbiter (GitHub) · coding · 153 stars · scanned at commit 3f1bd13

Run Claude Code INSIDE a ca-sandbox box (`--with-claude`). Routed to when the user wants an agent loop running against an isolated, ephemeral sandbox rather than the host. Authenticates via an env-injected CLAUDE_CODE_OAUTH_TOKEN with no host bind of ~/.claude; the image pins the CLI and disables the autoupdater; HOME is backed by a named volume so the .claude state persists across restart. Five gated phases — posture, image, token, run, teardown. The hard default is offline or Anthropic-domain…

Works with any agent that supports SKILL.md skills.

What this skill can do

We found nothing in the files we read that matches our rules. That does not prove the skill is safe: see the limits of static scanning.

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'sandbox-claude-inside' ] || [ -L ~/.agents/skills/'sandbox-claude-inside' ]; then echo 'A skill folder named sandbox-claude-inside already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/arbiterForge/codeArbiter' "$d" && git -C "$d" checkout --quiet '3f1bd13762ed9f25320e58907f9bf98a81128504' -- 'plugins/ca-sandbox/skills/sandbox-claude-inside' && mkdir -p ~/.agents/skills && cp -R "$d"/'plugins/ca-sandbox/skills/sandbox-claude-inside' ~/.agents/skills/'sandbox-claude-inside' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'sandbox-claude-inside' ~/.claude/skills/'sandbox-claude-inside' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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