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Agent skill

Deploy Playground

by objeck in objeck/objeck-lang

Deploy/refresh the Objeck web playground (playground.objeck.org) on its VPS over SSH — git pull, rebuild the sandbox Docker image, restart the service, health-check.

Custom licenceAuto-check: warningsDevOps & Cloud

Install Deploy Playground

The automated check flagged lines worth reading first. See the safety section below.

skills CLI
$ npx skills add objeck/objeck-lang --skill deploy-playground -a claude-code

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

GitHub CLI
$ gh skill install objeck/objeck-lang deploy-playground --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/objeck/objeck-lang.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/deploy-playground .claude/skills/deploy-playground && 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
deploy-playground
GitHub stars
165
Token cost
~2.1k tokens
SKILL.md length
955 words
Files
1
Skills in repo
5
Repo updated
First seen
Licence
Custom licence

At a glance

Deploy/refresh the Objeck web playground (playground.objeck.org) on its VPS over SSH — git pull, rebuild the sandbox Docker image, restart the service, health-check.

  • Works in 4 steps: Deploy → Recover a stuck git tree (only if… → Version sanity check -- BOTH of them → …
  • Tasks that involve Containers
  • SKILL.md covers Prerequisites — held…, Steps, Security and Sourceforge is not part of this, plus 1 more section
  • Calls git, ssh and curl; reaches playground.objeck.org; needs PLAYGROUND_SSH_KEY

What it does

Deploy Playground is an agent skill from objeck/objeck-lang. Deploy/refresh the Objeck web playground (playground.objeck.org) on its VPS over SSH — git pull, rebuild the sandbox Docker image, restart the service, health-check. Host and SSH access are held out-of-band; this skill contains no secrets.

Its SKILL.md is about 2.1k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in DevOps & Cloud, covering Containers and Git workflow. It works with Git, Docker and Linux. The repository describes itself as: Lightweight object-oriented and functional programming language. Designed to be intuitive, small, cross-platform, and fast. The language emphasizes portability, scalability, and…

When your agent uses it

  • Tasks that involve Containers
  • Tasks that involve Git workflow

Example prompts

  • “/deploy-playground”

Requirements

  • Python 3
  • Docker
  • A credential in PLAYGROUND_SSH_KEY
  • Pre-approved tools (allowed-tools): Read, Bash

Workflow steps

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

  1. Deploy
  2. Recover a stuck git tree (only if update.sh's pull fails)
  3. Version sanity check -- BOTH of them
  4. Report

What it can do on your machine

Read from SKILL.md and the folder at commit 794c0bd. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves these tools, so the agent can use them without asking each time:

    • Read
    • Bash

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • git
    • ssh
    • curl
    • docker
    • jq

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

  • Network

    Hosts in commands or code, which the agent is likely to contact:

    • playground.objeck.org

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

  • Credentials

    Names these keys or tokens, usually read from environment variables:

    • PLAYGROUND_SSH_KEY

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

Context cost

Deploy Playground loads about 2.1k tokens when it runs. Until then it costs about 64 tokens; SKILL.md has 955 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~64
When it runs · the whole SKILL.md, loaded when a task matches
~2.1k

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: warnings

The automated check found patterns that need a careful read before installing.

  • WarningMentions a credentials file (SSH keys, cloud or package-manager tokens)SKILL.md:23
    cat ~/.ssh/id_ed25519.pub      # or ~/.ssh/id_rsa.pub
  • WarningMentions a credentials file (SSH keys, cloud or package-manager tokens)SKILL.md:30
    r an SSH alias named `playground`** in `~/.ssh/config`. The Windows release box
  • NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
    allowed-tools: Read, Bash

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

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 955 words (~2,091 tokens).

“Deploy or refresh the DigitalOcean-hosted Objeck playground at playground.objeck.org. Use after a release, or any time the server needs to pull the latest master.”

— opening of SKILL.md by objeck, Custom licence
name
deploy-playground
allowed-tools
Read, Bash
argument-hint
[version] e.g. 2026.6.1 (optional — for the version sanity check)

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .claude/skills/deploy-playground of objeck/objeck-lang.

Open the folder on GitHubat commit 794c0bd

Compare with similar skills

Deploy Playground 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.

Deploy Playground compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Deploy Playground this skillobjeck/objeck-lang165—~2.1kAutomated safety check: WarnCustom licence
Ssh Skillbadseal/ssh-skill536—~2.4kAutomated safety check: NotesNone
Rtk Skillsopaco/deepwiki-rs3.1k—~1.4kAutomated safety check: PassMIT
Pluggedin Stack OpsVeriTeknik/pluggedin-app103—~1.3kAutomated safety check: NotesMIT
Docker Via WslJMBeresford/retrom2.1k—~832Automated safety check: PassMIT
Polyphonyalinaqi/maggy707—~980Automated safety check: PassMIT

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Works with

Categories

Questions about Deploy Playground

What does Deploy Playground do?

Deploy/refresh the Objeck web playground (playground.objeck.org) on its VPS over SSH — git pull, rebuild the sandbox Docker image, restart the service, health-check. Deploy Playground is an agent skill from objeck/objeck-lang.org) on its VPS over SSH — git pull, rebuild the sandbox Docker image, restart the service, health-check.

When should I use Deploy Playground?

Deploy Playground fits situations like: tasks that involve Containers; tasks that involve Git workflow.

How do I install Deploy Playground in Claude Code?

Run `npx skills add objeck/objeck-lang --skill deploy-playground -a claude-code`. Or copy the skill folder (.claude/skills/deploy-playground in objeck/objeck-lang) into .claude/skills/deploy-playground in your project. Claude Code loads it when a task matches its description.

How do I install Deploy Playground in Codex?

Run `npx skills add objeck/objeck-lang --skill deploy-playground -a codex`. Or copy the skill folder (.claude/skills/deploy-playground in objeck/objeck-lang) into .agents/skills/deploy-playground in your project. Codex loads it when a task matches its description.

Can I use Deploy Playground 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 objeck/objeck-lang --skill deploy-playground -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/deploy-playground, .gemini/skills/deploy-playground, .github/skills/deploy-playground and .opencode/skills/deploy-playground in your project.

What does Deploy Playground need to run?

Going by SKILL.md and its folder, Deploy Playground needs the command-line tools its instructions call (git, ssh, curl, docker and jq) and credentials named PLAYGROUND_SSH_KEY. Our summary lists: Python 3; Docker; A credential in PLAYGROUND_SSH_KEY. Its frontmatter pre-approves these tools: Read, Bash.

Does Deploy Playground access the network?

SKILL.md names 1 domain. In commands or code: playground.objeck.org; the agent is likely to contact it when it follows the instructions. This is read from the text; nothing was executed.

Is Deploy Playground safe to install?

Our automated static check of SKILL.md flagged 2 warning(s): mentions a credentials file (ssh keys, cloud or package-manager tokens). Read the flagged lines before installing; the check is not a guarantee either way.

What licence does Deploy Playground use?

Deploy Playground has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Deploy Playground use?

About 2.1k tokens (SKILL.md is roughly 8.4k 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 Deploy Playground?

Skills that share tags, products or a category with Deploy Playground: Ssh Skill (badseal/ssh-skill, 536 stars), Rtk Skill (sopaco/deepwiki-rs, 3.1k stars), Pluggedin Stack Ops (VeriTeknik/pluggedin-app, 103 stars) and Docker Via Wsl (JMBeresford/retrom, 2.1k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Deploy Playground?

objeck (a GitHub user) maintains it in objeck/objeck-lang, which has 165 GitHub stars. The repository holds 5 skills in this directory. The repository was last updated on October 7, 2026.

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