dockerfile-patterns

dockerfile-patterns is a skill for Claude Code from Nmor/the-claude-council. It costs 138 tokens per session (23,562 once invoked), scanned A, original, no licence file.

Rules for writing Dockerfiles that produce smaller, safer, and predictable container images, including staged builds, pinned base images, non-root users, layer ordering, and explicit startup commands.

In plain words
What is it for?
It guides the steps used to build application containers, install dependencies, set working directories, and define how containers start.
Why use it?
It helps prevent avoidable security, reproducibility, and image-size problems when packaging an application.

Skill for Claude Code

Written for Claude Code: paths in frontmatter.

Good fit It guides the steps used to build application containers, install dependencies, set working directories, and define how containers start.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/nmor/the-claude-council/dockerfile-patterns
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.

Any agent
npx skills add Nmor/the-claude-council --skill dockerfile-patterns
Clone the repo
git clone --depth 1 https://github.com/Nmor/the-claude-council

Made for: Claude Code.

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 dockerfile-patterns

README.md
[![agentmods](https://agentmods.dev/badge/skills/nmor/the-claude-council/dockerfile-patterns/github.svg)](https://agentmods.dev/skills/nmor/the-claude-council/dockerfile-patterns)
Your own site
<a href="https://agentmods.dev/skills/nmor/the-claude-council/dockerfile-patterns"><img src="https://agentmods.dev/badge/skills/nmor/the-claude-council/dockerfile-patterns/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for dockerfile-patterns

Your own site · 80×15
<a href="https://agentmods.dev/skills/nmor/the-claude-council/dockerfile-patterns"><img src="https://agentmods.dev/badge/skills/nmor/the-claude-council/dockerfile-patterns.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 138 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 23,562 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. ✓ AI security review Fable 5.1 · 7 Sept 2026 📄 Read the review
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 5.1 $0.00138 $0.23562
Opus 5 $0.00069 $0.11781
Sonnet 5 $0.00028 $0.04712
Haiku 4.5 $0.00014 $0.02356

Measured 8d ago against content hash fb7263ab6fa8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

dockerfile-patterns 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 8d 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.

skills/dockerfile-patterns/SKILL.md · 2,608 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

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. 8d ago First seen · 2,608 lines · 138 tokens per session scan F fb7263ab6fa8

Subscribe to this mod's changes

dockerfile-patterns is a skill published in the GitHub repository Nmor/the-claude-council (9 stars, last pushed 4d ago), with no licence file. It adds 138 tokens to every session and 23,562 once invoked, about $0.0007 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 2026-09-03.

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