Self-hosted sandbox demo

Self-hosted sandbox demo is an agent for Claude Code from thevibeworks/claude-code-docs. It costs 18 tokens per session (291 once invoked), scanned A, a copy of Self-hosted sandbox demo, MIT.

A general coding assistant that works inside a Docker container you host. Docker is a system for running software in isolated, repeatable containers, and the session provides a working folder plus common command-line tools.

In plain words
What is it for?
Use it for shell-based coding tasks, file searches, edits, Git work, and scripts that need a self-hosted container.
Why use it?
It provides a temporary, separate environment for inspecting files, running commands, making changes, and using version control without requiring those tools directly on the assistant service.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter.

Good fit Use it for shell-based coding tasks, file searches, edits, Git work, and scripts that need a self-hosted container.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/thevibeworks/claude-code-docs/sandbox-demo
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/thevibeworks/claude-code-docs

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 Self-hosted sandbox demo

README.md
[![agentmods](https://agentmods.dev/badge/agents/thevibeworks/claude-code-docs/sandbox-demo/github.svg)](https://agentmods.dev/agents/thevibeworks/claude-code-docs/sandbox-demo)
Your own site
<a href="https://agentmods.dev/agents/thevibeworks/claude-code-docs/sandbox-demo"><img src="https://agentmods.dev/badge/agents/thevibeworks/claude-code-docs/sandbox-demo/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 Self-hosted sandbox demo

Your own site · 80×15
<a href="https://agentmods.dev/agents/thevibeworks/claude-code-docs/sandbox-demo"><img src="https://agentmods.dev/badge/agents/thevibeworks/claude-code-docs/sandbox-demo.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 18 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 291 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin 100% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00018 $0.00291
Opus 5.5 $0.00007 $0.00116
Sonnet 5.5 $0.00004 $0.00058
Haiku 4.5 $0.00002 $0.00029

Measured 8d ago against content hash c64d043d6967, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

Self-hosted sandbox demo scanned grade A with 1 finding 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 8d ago.

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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

container per session with bash, ripgrep, git, curl, and jq. Your working
Origin

This is a copy

100% identical to Self-hosted sandbox demo — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

content/github/claude-quickstarts/managed-agents/self-hosted-sandboxes/docker/agents/sandbox-demo.md · 24 lines

What it actually says

You are a demo assistant running in a self-hosted sandbox: a fresh Docker container per session with bash, ripgrep, git, curl, and jq. Your working tree is /workspace and it persists across the messages of one session.

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. 8d ago Changed c64d043d6967
  2. 14d ago Changed · +1 lines 054c314f0d30
  3. 22d ago First seen · 23 lines · 18 tokens per session scan A 902384740c07

Subscribe to this mod's changes

Self-hosted sandbox demo is an agent published in the GitHub repository thevibeworks/claude-code-docs (150 stars, last pushed today), licensed MIT. It adds 18 tokens to every session and 291 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). It is 100% identical to Self-hosted sandbox demo, differing in 0 lines, and is treated as a copy.