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Agent skill

Crabbox Setup

by AI-Builder-Club in AI-Builder-Club/skills

Scaffold an isolated CLOUD dev box per agent (via crabbox + Daytona) for any codebase — the parallel-safe counterpart to dev-local-setup.

No licenceAuto-check: notesTesting & QA

Install Crabbox Setup

skills CLI
$ npx skills add AI-Builder-Club/skills --skill crabbox-setup -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install AI-Builder-Club/skills crabbox-setup --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/AI-Builder-Club/skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/crabbox-setup .claude/skills/crabbox-setup && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
crabbox-setup
GitHub stars
1.3k
Token cost
~1.9k tokens
SKILL.md length
822 words
Files
6 (incl. assets)
Skills in repo
11
Repo updated
First seen
Licence
None found

At a glance

Scaffold an isolated CLOUD dev box per agent (via crabbox + Daytona) for any codebase — the parallel-safe counterpart to dev-local-setup.

  • Works in 8 steps: Discover (reuse dev-local, don't… → devbox/Dockerfile → Build the snapshot (user runs daytona… → …
  • The user says set up crabbox
  • SKILL.md covers Step 0 — Discover (reuse…, Step 1 — devbox/Dockerfile, Step 2 — Build the snapshot… and Step 3 — .crabbox.yaml, plus 7 more sections
  • Runs Shell scripts from its folder; calls bash and docker

What it does

Crabbox Setup is an agent skill from AI-Builder-Club/skills. Scaffold an isolated CLOUD dev box per agent (via crabbox + Daytona) for any codebase — the parallel-safe counterpart to dev-local-setup. Each agent gets its own full stack (own DB + dev server) and an in-box browser for e2e, so concurrent loops never collide on ports/state. Sets up the snapshot image, .crabbox.yaml, an idempotent setup.sh (also boots the stack locally), and a cbx.sh wrapper. Use when the user says "set up crabbox", "give each agent its own box", "add cloud testing", "make this repo testable in…

Its SKILL.md is about 1.9k tokens, which your agent loads only when the skill is triggered. The skill folder holds 6 other files, including assets (for example `assets/cbx.sh`, `assets/cli.config.json` and `assets/crabbox.yaml`).

It sits in Testing & QA, covering End-to-end testing and Containers. It works with Docker. The repository describes itself as: Codebase harness + loop engineer.

When your agent uses it

  • The user says set up crabbox
  • Give each agent its own box
  • Add cloud testing
  • Make this repo testable in the cloud / on Daytona

Example prompts

  • “set up crabbox”
  • “give each agent its own box”
  • “add cloud testing”
  • “/crabbox-setup”

Requirements

  • A Bash shell
  • Docker

Workflow steps

8 steps, taken from the step headings in SKILL.md.

  1. Discover (reuse dev-local, don't re-derive)
  2. devbox/Dockerfile
  3. Build the snapshot (user runs daytona login first)
  4. .crabbox.yaml
  5. setup.sh (boots the stack on the box AND locally)
  6. cbx.sh + browser config
  7. gitignore + commit (required for fast sync)
  8. Verify (run the e2e suite on the box)

What it can do on your machine

Read from SKILL.md and the folder at commit 917780c. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Ships script files (Shell), which the agent can run.

    Shell commands in SKILL.md call:

    • bash
    • docker

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use docker, which can reach the network depending on how they are called.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Crabbox Setup loads about 1.9k tokens when it runs. Until then it costs about 160 tokens; SKILL.md has 822 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~160
When it runs · the whole SKILL.md, loaded when a task matches
~1.9k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check: notes

The automated check noted patterns worth knowing about, such as sudo or a known installer.

  • NoteMentions a .env fileSKILL.md:63
    `**/.env*`), and `env.allow` (the exact secret var names). Secrets travel via `env.allow`

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Without a licence we can't republish the file, so here is its outline and opening line. It has 822 words (~1,941 tokens).

“dev-local-setup gives you one local stack. But the loop-engineer model runs many loops in parallel, and you can't run N full stacks on one laptop — fixed ports, one Docker daemon, one shared DB; worktrees don't fix that (they still…”

— opening of SKILL.md by AI-Builder-Club
name
crabbox-setup
user_invocable
true

Read the full SKILL.md on GitHub

Files

SKILL.md and 5 other files (assets) in skills/crabbox-setup of AI-Builder-Club/skills.

  • SKILL.md
  • assets/Dockerfile
  • assets/cbx.sh
  • assets/cli.config.json
  • assets/crabbox.yaml
  • assets/setup.sh

Open the folder on GitHubat commit 917780c

Compare with similar skills

Crabbox Setup next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Crabbox Setup compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Crabbox Setup this skillAI-Builder-Club/skills1.3k—~1.9kAutomated safety check: NotesNone
Dqd Labctrsploit/ctrsploit154—~1.6kAutomated safety check: PassNone
Openclaw Docker E2E Authoringopenclaw/openclaw392k—~593Automated safety check: PassMIT
Release Openclaw Plugin Testingopenclaw/openclaw392k—~3.2kAutomated safety check: PassMIT
Testingwellwelwel/poku1.2k—~1kAutomated safety check: PassMIT
Go Redis Client Test Runnerredis/go-redis22k—~786Automated safety check: PassBSD-2-Clause

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Works with

Categories

Questions about Crabbox Setup

What does Crabbox Setup do?

Scaffold an isolated CLOUD dev box per agent (via crabbox + Daytona) for any codebase — the parallel-safe counterpart to dev-local-setup. Crabbox Setup is an agent skill from AI-Builder-Club/skills. Scaffold an isolated CLOUD dev box per agent (via crabbox + Daytona) for any codebase — the parallel-safe counterpart to dev-local-setup.

When should I use Crabbox Setup?

Crabbox Setup fits situations like: the user says set up crabbox; give each agent its own box; add cloud testing; make this repo testable in the cloud / on Daytona.

How do I install Crabbox Setup in Claude Code?

Run `npx skills add AI-Builder-Club/skills --skill crabbox-setup -a claude-code`. Or copy the skill folder (skills/crabbox-setup in AI-Builder-Club/skills) into .claude/skills/crabbox-setup in your project. Claude Code loads it when a task matches its description.

How do I install Crabbox Setup in Codex?

Run `npx skills add AI-Builder-Club/skills --skill crabbox-setup -a codex`. Or copy the skill folder (skills/crabbox-setup in AI-Builder-Club/skills) into .agents/skills/crabbox-setup in your project. Codex loads it when a task matches its description.

Can I use Crabbox Setup in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add AI-Builder-Club/skills --skill crabbox-setup -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/crabbox-setup, .gemini/skills/crabbox-setup, .github/skills/crabbox-setup and .opencode/skills/crabbox-setup in your project.

What does Crabbox Setup need to run?

Going by SKILL.md and its folder, Crabbox Setup needs a shell for the scripts in its folder and the command-line tools its instructions call (bash and docker). Our summary lists: A Bash shell; Docker.

Does Crabbox Setup access the network?

SKILL.md contains no URLs. Its commands use docker, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Crabbox Setup safe to install?

Our automated static check of SKILL.md found notes only (mentions a .env file), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.

What licence does Crabbox Setup use?

No licence was found for Crabbox Setup or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Crabbox Setup use?

About 1.9k tokens (SKILL.md is roughly 7.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Crabbox Setup?

Skills that share tags, products or a category with Crabbox Setup: Dqd Lab (ctrsploit/ctrsploit, 154 stars), Openclaw Docker E2E Authoring (openclaw/openclaw, 392k stars), Release Openclaw Plugin Testing (openclaw/openclaw, 392k stars) and Testing (wellwelwel/poku, 1.2k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Crabbox Setup?

AI-Builder-Club (a GitHub organization) maintains it in AI-Builder-Club/skills, which has 1,288 GitHub stars. The repository holds 11 skills in this directory. The repository was last updated on September 15, 2026.

Source: AI-Builder-Club/skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.