Clean up Docker resources created by the Learn Docker & K8s game.

No licenceAuto-check passedDevOps & Cloud

Install Cleanup

skills CLI
$ npx skills add ericboy0224/learn-docker-and-k8s --skill cleanup -a claude-code

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

GitHub CLI
$ gh skill install ericboy0224/learn-docker-and-k8s cleanup --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/ericboy0224/learn-docker-and-k8s.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/cleanup .claude/skills/cleanup && 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
cleanup
GitHub stars
486
Token cost
~454 tokens
SKILL.md length
148 words
Files
1
Skills in repo
9
Repo updated
First seen
Licence
None found

At a glance

Clean up Docker resources created by the Learn Docker & K8s game.

  • Works in 4 steps: Show What Exists → Confirm → Clean → …
  • The user wants to clean up
  • SKILL.md covers Step 1: Show What Exists, Step 2: Confirm, Step 3: Clean and Step 4: Update Progress (if…
  • Calls docker, bash and kind

What it does

Cleanup is an agent skill from ericboy0224/learn-docker-and-k8s. Clean up Docker resources created by the Learn Docker & K8s game. Removes all learn- containers, networks, volumes, and images. Use when the user wants to clean up, reset, or free disk space.

Its SKILL.md is about 450 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 Container orchestration. It works with Docker and Kubernetes. The repository describes itself as: Interactive AI-driven game to learn Docker, Linux, networking & Kubernetes. Open in Claude Code or Cursor, type 'let's play'.

When your agent uses it

  • The user wants to clean up
  • Free disk space

Example prompts

  • “/cleanup”

Requirements

  • Docker

Workflow steps

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

  1. Show What Exists
  2. Confirm
  3. Clean
  4. Update Progress (if needed)

What it can do on your machine

Read from SKILL.md and the folder at commit da325b6. 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

    Shell commands in SKILL.md call:

    • docker
    • bash
    • kind

    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

Cleanup loads about 454 tokens when it runs. Until then it costs about 50 tokens; SKILL.md has 148 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~50
When it runs · the whole SKILL.md, loaded when a task matches
~454

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); 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 148 words (~454 tokens).

“This is a destructive operation. Always confirm with the player first.”

— opening of SKILL.md by ericboy0224
name
cleanup
disable-model-invocation
true
argument-hint
[chapter|all]

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .claude/skills/cleanup of ericboy0224/learn-docker-and-k8s.

Open the folder on GitHubat commit da325b6

Compare with similar skills

Cleanup 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.

Cleanup compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Cleanup this skillericboy0224/learn-docker-and-k8s486—~454Automated safety check: PassNone
LangBot Deployment Guidelangbot-app/LangBot18k—~1.2kAutomated safety check: NotesApache-2.0
Build Openshell Mxc WindowsNVIDIA/OpenShell15k—~4.9kAutomated safety check: PassApache-2.0
Devopsnicepkg/auto-company1922 repos~814Automated safety check: PassMIT
Debug Openshell ClusterNVIDIA/OpenShell15k—~19kAutomated safety check: NotesApache-2.0
Deepseek Harness Dockerrunzhliu/deepseek-harness-docker109—~2.7kAutomated safety check: NotesMIT

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More from ericboy0224/learn-docker-and-k8s

All 9 skills in this repo
  • Play

    ericboy0224/learn-docker-and-k8s

    Start or resume the Learn Docker & K8s interactive game. An agent skill from ericboy0224/learn-docker-and-k8s.

    486 GitHub stars~648 tokensUpdated 6 mo ago
    Auto-check passed
  • Verify

    ericboy0224/learn-docker-and-k8s

    Verify if the current challenge is completed in Learn Docker & K8s.

    486 GitHub stars~511 tokensUpdated 6 mo ago
    Auto-check passed
  • Env Check

    ericboy0224/learn-docker-and-k8s

    Check if the system is ready for the Learn Docker & K8s game.

    486 GitHub stars~358 tokensUpdated 6 mo ago
    Auto-check: notes
  • Progress

    ericboy0224/learn-docker-and-k8s

    Show the player's current progress in Learn Docker & K8s. An agent skill from ericboy0224/learn-docker-and-k8s.

    486 GitHub stars~371 tokensUpdated 6 mo ago
    Auto-check passed
  • Engage Check

    ericboy0224/learn-docker-and-k8s

    Monitor player engagement and adapt the learning experience.

    486 GitHub stars~726 tokensUpdated 6 mo ago
    Auto-check passed
  • Hint

    ericboy0224/learn-docker-and-k8s

    Get a hint for the current challenge in Learn Docker & K8s. An agent skill from ericboy0224/learn-docker-and-k8s.

    486 GitHub stars~508 tokensUpdated 6 mo ago
    Auto-check passed

Categories

Questions about Cleanup

What does Cleanup do?

Clean up Docker resources created by the Learn Docker & K8s game. Cleanup is an agent skill from ericboy0224/learn-docker-and-k8s. Clean up Docker resources created by the Learn Docker & K8s game.

When should I use Cleanup?

Cleanup fits situations like: the user wants to clean up; free disk space.

How do I install Cleanup in Claude Code?

Run `npx skills add ericboy0224/learn-docker-and-k8s --skill cleanup -a claude-code`. Or copy the skill folder (.claude/skills/cleanup in ericboy0224/learn-docker-and-k8s) into .claude/skills/cleanup in your project. Claude Code loads it when a task matches its description.

How do I install Cleanup in Codex?

Run `npx skills add ericboy0224/learn-docker-and-k8s --skill cleanup -a codex`. Or copy the skill folder (.claude/skills/cleanup in ericboy0224/learn-docker-and-k8s) into .agents/skills/cleanup in your project. Codex loads it when a task matches its description.

Can I use Cleanup 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 ericboy0224/learn-docker-and-k8s --skill cleanup -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/cleanup, .gemini/skills/cleanup, .github/skills/cleanup and .opencode/skills/cleanup in your project.

What does Cleanup need to run?

Going by SKILL.md and its folder, Cleanup needs the command-line tools its instructions call (docker, bash and kind). Our summary lists: Docker.

Does Cleanup 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 Cleanup 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. Review the folder before installing.

What licence does Cleanup use?

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

How many tokens does Cleanup use?

About 454 tokens (SKILL.md is roughly 1.8k 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 Cleanup?

Skills that share tags, products or a category with Cleanup: LangBot Deployment Guide (langbot-app/LangBot, 18k stars), Build Openshell Mxc Windows (NVIDIA/OpenShell, 15k stars), Devops (nicepkg/auto-company, 192 stars) and Debug Openshell Cluster (NVIDIA/OpenShell, 15k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Cleanup?

ericboy0224 (a GitHub user) maintains it in ericboy0224/learn-docker-and-k8s, which has 486 GitHub stars. The repository holds 9 skills in this directory. The repository was last updated on March 27, 2026.

Source: ericboy0224/learn-docker-and-k8s on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.