ca-sandbox

ca-sandbox is a plugin for Claude Code from arbiterForge/codeArbiter. Its manifest loads nothing; the 2 skills, 5 commands it bundles cost 354 tokens per session together, scanned A, original, AGPL-3.0.

A local system for working with untrusted repositories in temporary Docker containers. It isolates the container from the host filesystem, controls network access, caches dependencies, and removes the workspace afterward.

In plain words
What is it for?
Use it to fetch, build, test, and inspect repositories in isolated workspaces with configurable network access.
Why use it?
It provides a safer place to inspect or run unfamiliar code without giving that code direct access to the host machine.

Plugin for Claude Code

Written for Claude Code: a Claude Code plugin manifest.

Good fit Use it to fetch, build, test, and inspect repositories in isolated workspaces with configurable network access.

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Install in Claude Code
/plugin marketplace add arbiterForge/codeArbiter
/plugin install ca-sandbox
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/arbiterForge/codeArbiter

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for ca-sandbox

README.md
[![agentmods](https://agentmods.dev/badge/plugins/arbiterforge/codearbiter/ca-sandbox/github.svg)](https://agentmods.dev/plugins/arbiterforge/codearbiter/ca-sandbox)
Your own site
<a href="https://agentmods.dev/plugins/arbiterforge/codearbiter/ca-sandbox"><img src="https://agentmods.dev/badge/plugins/arbiterforge/codearbiter/ca-sandbox/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for ca-sandbox

Your own site · 80×15
<a href="https://agentmods.dev/plugins/arbiterforge/codearbiter/ca-sandbox"><img src="https://agentmods.dev/badge/plugins/arbiterforge/codearbiter/ca-sandbox.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured The manifest loads nothing itself; its 2 skills, 5 commands cost 354 tokens a session between them.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Security

Grade A, and why

ca-sandbox scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured today.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/ca-sandbox/.claude-plugin/plugin.json · 12 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Contents

What it installs

The manifest is a name and a version. 2 skills, 5 commands travel with it, and installing the plugin installs all of them — 354 tokens a session between them. Each is measured on its own page, and each can be installed alone.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. today Changed ec84f4e78149
  2. 7d ago Changed e7bba737721e
  3. 8d ago Changed b3442b04513b
  4. 9d ago Changed 8e1093e755e8
  5. 1mo ago Changed 4de508b7f411
  6. 1mo ago First seen · 12 lines scan A 6e6e9e45f18e

Subscribe to this mod's changes

ca-sandbox is a plugin published in the GitHub repository arbiterForge/codeArbiter (149 stars, last pushed today), licensed AGPL-3.0. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.