docker-ce

docker-ce is a skill for Claude Code, Codex from vikasudasi/skill-vault. It costs 23 tokens per session (251 once invoked), scanned A, original, Apache-2.0.

A practical guide to running Docker CE on Ubuntu. Docker packages applications and their dependencies into isolated containers, while volumes store data outside those containers.

In plain words
What is it for?
Use it to start and inspect containers, view logs, manage images, networks, and volumes, fix port conflicts, and recover from common failures.
Why use it?
It helps diagnose common container, port, network, and storage problems and warns about cleanup commands that can delete data.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/vikasudasi/skill-vault/docker-ce
Any agent
npx skills add vikasudasi/skill-vault --skill docker-ce
Clone the repo
git clone --depth 1 https://github.com/vikasudasi/skill-vault

Made for: Claude Code, Codex.

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 docker-ce

README.md
[![agentmods](https://agentmods.dev/badge/skills/vikasudasi/skill-vault/docker-ce.svg)](https://agentmods.dev/skills/vikasudasi/skill-vault/docker-ce)
Your own site
<a href="https://agentmods.dev/skills/vikasudasi/skill-vault/docker-ce"><img src="https://agentmods.dev/badge/skills/vikasudasi/skill-vault/docker-ce.svg" alt="Measured on agentmods" height="20"></a>
Per session 23 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 251 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found 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 $0.00023 $0.00251
Opus 5 $0.00012 $0.00125
Sonnet 5 $0.00005 $0.00050
Haiku 4.5 $0.00002 $0.00025

Measured 4d ago against content hash 3ec5084ca169, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

docker-ce scanned grade A with 0 findings 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 4d 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

tests/fixtures/skills/docker-ce/SKILL.md · 41 lines

What it actually says

Docker CE on Ubuntu

Use when the user is working with Docker containers on Ubuntu and needs an operational runbook rather than a quick one-liner.

Pull and run

docker pull ubuntu:24.04
docker run --rm -it ubuntu:24.04 bash

Inspect

docker ps -a
docker images
docker logs --tail 100 <container>

Common failure: port already in use

Error starting userland proxy: listen tcp4 0.0.0.0:8080: bind: address already in use

Find and stop the offending container:

docker ps -a --filter publish=8080
docker rm -f <container>

Cleanup

docker system prune -a --volumes   # destroys unused images + all volumes

See references/volumes.md for volume persistence semantics.

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 4d ago First seen · 41 lines · 23 tokens per session scan A 3ec5084ca169

Subscribe to this mod's changes

docker-ce is a skill published in the GitHub repository vikasudasi/skill-vault (0 stars, last pushed 19d ago), licensed Apache-2.0. It adds 23 tokens to every session and 251 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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