docker

docker is a skill for Claude Code, Codex from mjunaidca/mjs-agent-skills. It costs 65 tokens per session (2,973 once invoked), scanned A, original, no licence file.

A guide to packaging Python and Node.js applications in Docker containers, isolated environments that bundle an app with what it needs to run. It also covers Docker Compose for defining multiple connected containers.

In plain words
What is it for?
Use it to create Dockerfiles and Compose setups, containerize Python or Node.js projects, inspect environment variables, check container security, and test the result.
Why use it?
It checks the project and environment settings before creating container files, helping avoid missing dependencies and accidentally exposing secrets.

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/mjunaidca/mjs-agent-skills/docker
Any agent
npx skills add mjunaidca/mjs-agent-skills --skill docker
Clone the repo
git clone --depth 1 https://github.com/mjunaidca/mjs-agent-skills

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

README.md
[![agentmods](https://agentmods.dev/badge/skills/mjunaidca/mjs-agent-skills/docker.svg)](https://agentmods.dev/skills/mjunaidca/mjs-agent-skills/docker)
Your own site
<a href="https://agentmods.dev/skills/mjunaidca/mjs-agent-skills/docker"><img src="https://agentmods.dev/badge/skills/mjunaidca/mjs-agent-skills/docker.svg" alt="Measured on agentmods" height="20"></a>
Per session 65 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,973 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00065 $0.02973
Opus 5 $0.00032 $0.01486
Sonnet 5 $0.00013 $0.00595
Haiku 4.5 $0.00006 $0.00297

Measured 4d ago against content hash 4c6f81c65a33, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

docker 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.

.claude/skills/docker/SKILL.md · 418 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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 · 418 lines · 65 tokens per session scan A 4c6f81c65a33

Subscribe to this mod's changes

docker is a skill published in the GitHub repository mjunaidca/mjs-agent-skills (27 stars, last pushed 23d ago), with no licence file. It adds 65 tokens to every session and 2,973 once invoked, about $0.0003 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 2026-08-30.

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