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Sandbox Lifecycle

Category: Engineering  ·  Sub-category: devops  ·  Last updated:
tool:docker
The lifecycle gate for a local Codespace-equivalent sandbox. Routed to when the user invokes /ca-sandbox:sandbox to pull an untrusted repo into an ephemeral, host-FS-isolated Docker container, or any of the interaction commands (/ca-sandbox:sandbox-shell, /ca-sandbox:sandbox-exec, /ca-sandbox:sandbox-cp, /ca-sandbox:sandbox-destroy) against an existing box. Five gated phases — pre-flight, clone+build, isolated run, interact, teardown. The load-bearing invariant is structural: untrusted code in the box can never reach the host filesystem (no bind mount, no docker socket, never --privileged, cap-drop ALL, non-root, read-only root). Network defaults to offline; egress out is host-initiated only. Every object is labeled ca.sandbox=1 and torn down on exit.
Security AStatic scan found no risk patternsHow grading works ›

From the source SKILL.md

Pull an untrusted repo into a throwaway box, explore it without risking the host, then burn the box. This skill owns the whole arc — clone into a named volume, build a dep-cached image, run it under structural isolation, interact (shell / exec / cp out), destroy — and the one invariant that makes it safe: the code inside the box can never touch the host filesystem. That guarantee is enforced by construction (no bind mounts, no docker socket, never --privileged), not by trusting the repo.

What this skill does

Sandbox Lifecycle is a community-contributed Claude Code skill in the devops sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/sandbox-lifecycle/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Sandbox Lifecycle Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 158,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/sandbox-lifecycle
curl -L https://claudskills.com/skills/sandbox-lifecycle/SKILL.md \
  -o ~/.claude/skills/sandbox-lifecycle/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/sandbox-lifecycle/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/sandbox-lifecycle/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\sandbox-lifecycle\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Telegram

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Sandbox Lifecycle Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/sandbox-lifecycle/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Sandbox Lifecycle skill do?
The lifecycle gate for a local Codespace-equivalent sandbox. Routed to when the user invokes /ca-sandbox:sandbox to pull an untrusted repo into an ephemeral, host-FS-isolated Docker container, or any of the interaction commands (/ca-sandbox:sandbox-shell, /ca-sandbox:sandbox-exec, /ca-sandbox:sandbox-cp, /ca-sandbox:sandbox-destroy) against an existing box. Five gated phases — pre-flight, clone+build, isolated run, interact, teardown. The load-bearing invariant is structural: untrusted code in the box can never reach the host filesystem (no bind mount, no docker socket, never --privileged, cap-drop ALL, non-root, read-only root). Network defaults to offline; egress out is host-initiated only. Every object is labeled ca.sandbox=1 and torn down on exit.
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Sandbox Lifecycle skill?
Use Sandbox Lifecycle when your Claude Code task falls under the Engineering category — specifically in the devops area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Sandbox Lifecycle" or describe the task and let Claude pick). Browse related skills at /category/engineering/.
What is a Claude Code skill and how does the Sandbox Lifecycle skill fit in?
A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Sandbox Lifecycle is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
arbiterForge. (2026). Sandbox Lifecycle [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/sandbox-lifecycle/
BibTeX
@misc{sandbox-lifecycle-2026,
  author    = {arbiterForge},
  title     = {Sandbox Lifecycle [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/sandbox-lifecycle/}
}

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Security scan

Grade A · scanned 2026-07-23 — free static scan against the OWASP Agentic Skills Top 10.

No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›

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[![Security: A](https://img.shields.io/badge/Security-A-2e7d32)](https://claudskills.com/skills/sandbox-lifecycle/#security)

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Browse all Engineering skills → Top 100 skills
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