docker-patterns

docker-patterns is a skill for Claude Code, Codex from langchain-ai/skills-benchmarks. It costs 14 tokens per session (293 once invoked), scanned B, original, MIT.

A set of patterns for packaging applications in Docker, a tool that runs software in isolated containers. It covers smaller multi-stage images, safer settings, health checks, and Compose configuration.

In plain words
What is it for?
Use it when writing Dockerfiles, preparing production images, running services with Docker Compose, adding health checks, or limiting container resources.
Why use it?
It helps avoid oversized images, unnecessary security risks, and containers that fail without being detected.

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/langchain-ai/skills-benchmarks/docker_patterns
Any agent
npx skills add langchain-ai/skills-benchmarks --skill docker_patterns
Clone the repo
git clone --depth 1 https://github.com/langchain-ai/skills-benchmarks

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-patterns

README.md
[![agentmods](https://agentmods.dev/badge/skills/langchain-ai/skills-benchmarks/docker_patterns.svg)](https://agentmods.dev/skills/langchain-ai/skills-benchmarks/docker_patterns)
Your own site
<a href="https://agentmods.dev/skills/langchain-ai/skills-benchmarks/docker_patterns"><img src="https://agentmods.dev/badge/skills/langchain-ai/skills-benchmarks/docker_patterns.svg" alt="Measured on agentmods" height="20"></a>
Per session 14 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 293 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 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 $0.00014 $0.00293
Opus 5 $0.00007 $0.00147
Sonnet 5 $0.00003 $0.00059
Haiku 4.5 $0.00001 $0.00029

Measured 4d ago against content hash 4b9d70b0d618, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

docker-patterns scanned grade B with 2 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.

Asks for rootmediumPrivilege escalation

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

1. Never run as root - use `USER` directive

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

CMD curl -f http://localhost:3000/health || exit 1
skills/noise/docker_patterns/SKILL.md · 59 lines

What it actually says

Docker Containerization Patterns

Build efficient, secure Docker images using modern patterns.

Multi-Stage Builds

Always use multi-stage builds to minimize image size:

# Build stage
FROM node:20-alpine AS builder
WORKDIR /app
COPY package*.json ./
RUN npm ci --only=production

# Production stage
FROM node:20-alpine
WORKDIR /app
COPY --from=builder /app/node_modules ./node_modules
COPY . .
USER node
CMD ["node", "server.js"]

Security Best Practices

  1. Never run as root - use USER directive
  2. Use specific version tags, not latest
  3. Scan images with docker scout or Trivy
  4. Use .dockerignore to exclude sensitive files

Health Checks

HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
  CMD curl -f http://localhost:3000/health || exit 1

Compose Patterns

services:
  app:
    build:
      context: .
      target: production
    environment:
      - NODE_ENV=production
    deploy:
      resources:
        limits:
          memory: 512M
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 · 59 lines · 14 tokens per session scan B 4b9d70b0d618

Subscribe to this mod's changes

docker-patterns is a skill published in the GitHub repository langchain-ai/skills-benchmarks (116 stars, last pushed 16d ago), licensed MIT. It adds 14 tokens to every session and 293 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it B with 2 findings (asks for root, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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