Agent skill

Sandbox Manager

by essamamdani in essamamdani/openclaw-coolify

Create and manage isolated application sandboxes (Next.js, Python, PHP, etc.) with public URLs via Cloudflare.

No licenceAuto-check passedBackend & APIs

Install Sandbox Manager

skills CLI
$ npx skills add essamamdani/openclaw-coolify --skill sandbox-manager -a claude-code

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

GitHub CLI
$ gh skill install essamamdani/openclaw-coolify sandbox-manager --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/essamamdani/openclaw-coolify.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/sandbox-manager .claude/skills/sandbox-manager && 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
sandbox-manager
GitHub stars
154
Token cost
~340 tokens
SKILL.md length
92 words
Files
5 (incl. scripts)
Skills in repo
1
Repo updated
First seen
Licence
None found

At a glance

Create and manage isolated application sandboxes (Next.js, Python, PHP, etc.) with public URLs via Cloudflare.

  • Backend & APIs work in your project
  • Runs Shell scripts from its folder

What it does

Sandbox Manager is an agent skill from essamamdani/openclaw-coolify. Create and manage isolated application sandboxes (Next.js, Python, PHP, etc.) with public URLs via Cloudflare.

Its SKILL.md is about 340 tokens, which your agent loads only when the skill is triggered. The skill folder holds 5 other files, including scripts (for example `scripts/create_sandbox.sh`, `scripts/db.sh` and `scripts/delete_sandbox.sh`).

It sits in Backend & APIs. It works with Cloudflare, Next.js, PHP and Python. The repository describes itself as: OpenClaw aka (Clawdbot, MoltBot) is an open agent platform that runs on your machine and works from the chat apps you already use. WhatsApp, Telegram, Discord, Slack…

When your agent uses it

  • Backend & APIs work in your project

Example prompts

  • “/sandbox-manager”

Requirements

  • A Bash shell
  • Docker

What it can do on your machine

Read from SKILL.md and the folder at commit 7e2c089. 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 4 files in scripts/ (Shell), which the agent can run.

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

  • Network

    No URLs in SKILL.md.

    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

Sandbox Manager loads about 340 tokens when it runs. Until then it costs about 32 tokens; SKILL.md has 92 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~32
When it runs · the whole SKILL.md, loaded when a task matches
~340

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 passed

The automated check found no risky patterns in SKILL.md.

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); the scripts in this folder are not scanned.

SKILL.md

Without a licence we can't republish the file, so here is its outline and opening line. It has 92 words (~340 tokens).

“This skill allows you to spin up isolated "sandboxes" for various application stacks. Each sandbox is a Docker container with:”

— opening of SKILL.md by essamamdani
name
sandbox-manager

Read the full SKILL.md on GitHub

Files

SKILL.md and 4 other files (scripts) in skills/sandbox-manager of essamamdani/openclaw-coolify.

  • SKILL.md
  • scripts/create_sandbox.sh
  • scripts/db.sh
  • scripts/delete_sandbox.sh
  • scripts/list_sandboxes.sh

Open the folder on GitHubat commit 7e2c089

Compare with similar skills

Sandbox Manager 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.

Sandbox Manager compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Sandbox Manager this skillessamamdani/openclaw-coolify154—~340Automated safety check: PassNone
Vercel Functionsvercel/vercel-plugin301—~12kAutomated safety check: NotesCustom licence
Bun Nextjssecondsky/claude-skills227—~1.9kAutomated safety check: NotesMIT
Golivemikehasa/golive-skill1.2k—~13kAutomated safety check: NotesMIT
Stack Previewvicoa-ai/vicoa499—~1.8kAutomated safety check: NotesAGPL-3.0
Tidyfactor StylerTidyFactor/Styler118—~1.7kAutomated safety check: PassApache-2.0

Similar skills

  • Vercel Functions

    vercel/vercel-plugin

    Official

    Vercel Functions expert guidance — Node.js/Bun/Python runtimes, Fluid Compute, long-duration (30 min) functions, large functions (5 GB bundles), Docker/OCI container images, plan limits, streaming…

    301 GitHub stars~12k tokensUpdated yesterday
    Backend & APIsAuto-check: notes
  • Bun Nextjs

    secondsky/claude-skills

    This skill should be used when the user asks about "Next.js with Bun", "Bun and Next", "running Next.js on Bun", "Next.js development with Bun", "create-next-app with Bun", or building Next.js…

    227 GitHub stars~1.9k tokensUpdated 11 days ago
    DevOps & CloudAuto-check: notes
  • Golive

    mikehasa/golive-skill

    Take an agent-written app from repo to live production on the user's OWN accounts, with providers they choose (hosting, database, auth, payments, email, domain/DNS).

    1.2k GitHub stars~13k tokensUpdated 5 days ago
    Backend & APIsAuto-check: notes
  • Stack Preview

    vicoa-ai/vicoa

    Run the whole Vicoa stack (Postgres, backend, realtime server, web dashboard) from the current checkout and publish it at one public tunnel URL, so a branch can be reviewed from another machine or…

    499 GitHub stars~1.8k tokensUpdated yesterday
    Backend & APIsAuto-check: notes
  • Tidyfactor Styler

    TidyFactor/Styler

    Production framework styler and surgical RTL UI polish engine with Contextual Decision Layer (CDL).

    118 GitHub stars~1.7k tokensUpdated 1 mo ago
    Frontend & DesignAuto-check passed
  • Send and receive transactional emails with Cloudflare Email Service (Email Sending + Email Routing).

    127 GitHub starsUsed in 2 repos~2k tokens
    Backend & APIsAuto-check passed

Categories

Questions about Sandbox Manager

What does Sandbox Manager do?

Create and manage isolated application sandboxes (Next.js, Python, PHP, etc.) with public URLs via Cloudflare. Sandbox Manager is an agent skill from essamamdani/openclaw-coolify.) with public URLs via Cloudflare.

When should I use Sandbox Manager?

Sandbox Manager fits situations like: backend & APIs work in your project.

How do I install Sandbox Manager in Claude Code?

Run `npx skills add essamamdani/openclaw-coolify --skill sandbox-manager -a claude-code`. Or copy the skill folder (skills/sandbox-manager in essamamdani/openclaw-coolify) into .claude/skills/sandbox-manager in your project. Claude Code loads it when a task matches its description.

How do I install Sandbox Manager in Codex?

Run `npx skills add essamamdani/openclaw-coolify --skill sandbox-manager -a codex`. Or copy the skill folder (skills/sandbox-manager in essamamdani/openclaw-coolify) into .agents/skills/sandbox-manager in your project. Codex loads it when a task matches its description.

Can I use Sandbox Manager 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 essamamdani/openclaw-coolify --skill sandbox-manager -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/sandbox-manager, .gemini/skills/sandbox-manager, .github/skills/sandbox-manager and .opencode/skills/sandbox-manager in your project.

What does Sandbox Manager need to run?

Going by SKILL.md and its folder, Sandbox Manager needs a shell for the scripts in its folder. Our summary lists: A Bash shell; Docker.

Does Sandbox Manager access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Sandbox Manager safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.

What licence does Sandbox Manager use?

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

How many tokens does Sandbox Manager use?

About 340 tokens (SKILL.md is roughly 1.4k 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 Sandbox Manager?

Skills that share tags, products or a category with Sandbox Manager: Vercel Functions (vercel/vercel-plugin, 301 stars), Bun Nextjs (secondsky/claude-skills, 227 stars), Golive (mikehasa/golive-skill, 1.2k stars) and Stack Preview (vicoa-ai/vicoa, 499 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Sandbox Manager?

essamamdani (a GitHub user) maintains it in essamamdani/openclaw-coolify, which has 154 GitHub stars. The repository was last updated on August 8, 2026.

Source: essamamdani/openclaw-coolify on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.