container-workflows

container-workflows is a skill for Claude Code, Codex from sammasak/claude-code-skills. It costs 40 tokens per session (877 once invoked), scanned A, original, no licence file.

A guide for building and securing container images with Dockerfiles. Container images package an application and its dependencies so it can run consistently in different environments.

In plain words
What is it for?
It helps write Dockerfiles, build images without root access, use multi-stage builds, push images to registries, and improve supply-chain security.
Why use it?
It helps avoid common problems with oversized or insecure images and unsafe build processes.

Skill for Claude CodeCodex

Part of the personal plugin — 25 skills, 7 agents shipped together

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/sammasak/claude-code-skills/container-workflows
Any agent
npx skills add sammasak/claude-code-skills --skill container-workflows
Clone the repo
git clone --depth 1 https://github.com/sammasak/claude-code-skills

Made for: Claude Code, Codex.

Or install personal, the plugin that ships this one along with the rest of its 25 skills, 7 agents.

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 container-workflows

README.md
[![agentmods](https://agentmods.dev/badge/skills/sammasak/claude-code-skills/container-workflows.svg)](https://agentmods.dev/skills/sammasak/claude-code-skills/container-workflows)
Your own site
<a href="https://agentmods.dev/skills/sammasak/claude-code-skills/container-workflows"><img src="https://agentmods.dev/badge/skills/sammasak/claude-code-skills/container-workflows.svg" alt="Measured on agentmods" height="20"></a>
Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 877 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00040 $0.00877
Opus 5 $0.00020 $0.00439
Sonnet 5 $0.00008 $0.00175
Haiku 4.5 $0.00004 $0.00088

Measured 4d ago against content hash 77003a58bd52, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

container-workflows scanned grade A with 1 finding 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.

Asks for rootlowPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

| Run as root | `USER nobody` or dedicated UID |

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

skills/container-workflows/SKILL.md · 77 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 · 77 lines · 40 tokens per session scan A 77003a58bd52

Subscribe to this mod's changes

container-workflows is a skill published in the GitHub repository sammasak/claude-code-skills (2 stars, last pushed 9d ago), with no licence file. It adds 40 tokens to every session and 877 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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