docker-knowledge-patch

docker-knowledge-patch is a skill for Claude Code from Nevaberry/nevaberry-plugins. It costs 7 tokens per session (2,333 once invoked), scanned A, original, MIT.

A reference guide for Docker, the software used to package and run applications in containers. It covers Docker Engine, networking, images, Dockerfiles, Compose, Buildx, and related components.

In plain words
What is it for?
Use it when changing Docker configuration, API calls, parsers, runtime behavior, networking, image builds, or Compose workflows.
Why use it?
Docker has separate versions and detailed output formats, so small compatibility assumptions can cause broken builds, deployments, or automation.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the knowledge-patch plugin — 57 skills, 1 hook shipped together

Good fit Use it when changing Docker configuration, API calls, parsers, runtime behavior, networking, image builds, or Compose workflows.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/nevaberry/nevaberry-plugins/docker-knowledge-patch
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 Nevaberry/nevaberry-plugins --skill docker-knowledge-patch
Clone the repo
git clone --depth 1 https://github.com/Nevaberry/nevaberry-plugins

Made for: Claude Code.

Or install knowledge-patch, the plugin that ships this one along with the rest of its 57 skills, 1 hook.

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-knowledge-patch

README.md
[![agentmods](https://agentmods.dev/badge/skills/nevaberry/nevaberry-plugins/docker-knowledge-patch/github.svg)](https://agentmods.dev/skills/nevaberry/nevaberry-plugins/docker-knowledge-patch)
Your own site
<a href="https://agentmods.dev/skills/nevaberry/nevaberry-plugins/docker-knowledge-patch"><img src="https://agentmods.dev/badge/skills/nevaberry/nevaberry-plugins/docker-knowledge-patch/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 docker-knowledge-patch

Your own site · 80×15
<a href="https://agentmods.dev/skills/nevaberry/nevaberry-plugins/docker-knowledge-patch"><img src="https://agentmods.dev/badge/skills/nevaberry/nevaberry-plugins/docker-knowledge-patch.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 7 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,333 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 2 findings, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium MCP Rug Pull · line 153
    Docker image references without a specific tag (:latest is implicit) or digest (@sha256:...) can be silently replaced by a malicious image.
    Fix: Pin the image: image:tag or image@sha256:abc123
  • medium MCP Rug Pull · line 178
    Docker image references without a specific tag (:latest is implicit) or digest (@sha256:...) can be silently replaced by a malicious image.
    Fix: Pin the image: image:tag or image@sha256:abc123
How audits are shown
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 5.1 $0.00007 $0.02333
Opus 5.5 $0.00003 $0.00933
Sonnet 5.5 $0.00001 $0.00467
Haiku 4.5 $0.00001 $0.00233

Measured 1mo ago against content hash aec5ada7d65f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

docker-knowledge-patch 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 1mo 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.

plugins/knowledge-patch/patches-claude/docker-knowledge-patch/SKILL.md · 236 lines

How it starts

The opening of the file, as written. The whole thing — 236 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Docker Knowledge Patch

Use this patch when work touches Docker Engine runtime, networking, images, the Engine API, Go integrations, Buildx, BuildKit, Dockerfile, or Compose.

How to use this patch

  1. Identify the component and read its complete topic reference before changing configuration, API calls, parsers, or automation.
  2. Check the installed daemon, CLI, API, Buildx, BuildKit, Dockerfile frontend, and Compose versions that matter to the task. They do not share one version.
  3. For Engine work, distinguish a fresh installation from an upgrade and check both the daemon version and negotiated API version.
  4. Treat output formats as interfaces: request an explicit CLI format and parse event, progress, and Compose streams according to their record framing.
  5. Prefer the project's manifests, configuration, code, tests, and observed behavior whenever they disagree with compatibility guidance.

Reference index

Reference Topics
runtime.md Daemon lifecycle, storage, resources, security, rootless, Swarm, Windows, and platform support
networking.md Attachments, DNS, IPv4/IPv6, IPAM, gateways, firewalls, and routing
images-registry.md Image stores, inspection, archives, platforms, registries, identity, and trust
engine-api.md API floors, version-gated schemas, event framing, updates, and deprecations
go-sdk-cli.md Go module, client, type, and call migrations; CLI integration changes
buildx.md Buildx, Bake, Imagetools, builders, exporters, policies, and resources
buildkit-dockerfile.md BuildKit sources, provenance, verification, deployment, Dockerfile, and linting
compose.md Compose SDK, builds, reconciliation, lifecycle, providers, publish, Watch, and output

Read the full file on GitHub · 236 lines

Files

What ships with it

9 files 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. 1mo ago First seen · 236 lines · 7 tokens per session scan A aec5ada7d65f

Subscribe to this mod's changes

docker-knowledge-patch is a skill published in the GitHub repository Nevaberry/nevaberry-plugins (23 stars, last pushed 1mo ago), licensed MIT. It adds 7 tokens to every session and 2,333 once invoked, about $0.0000 per session on Opus 5.5. 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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