docker-ops SKILL.md skillA

docker-ops from 0xdarkmatter/claude-mods is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add 0xdarkmatter/claude-mods/docker-ops@git:20261007.cd3ef77

Pins git:20261007.cd3ef77 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
0xdarkmatter/claude-mods
Path
skills/docker-ops/SKILL.md
Versions recorded
8
Latest version
git:20261007.cd3ef77, committed Oct 7, 2026
First version recorded
Mar 8, 2026
Size
13,580 bytes
Repository stars
68
License
MIT

Docker on your machine and in your repo: Dockerfile, .dockerignore, compose.yaml, BuildKit, image hardening and supply chain, plus the engine underneath (Docker Desktop, OrbStack, Colima, Podman, Rancher Desktop): contexts and sockets, ports, disk space, file sharing, emulation. Ships a repo auditor, a read-only machine doctor, an image-tag checker. Not for Kubernetes or Helm (kubernetes-ops), DDEV projects (ddev-ops), or WSL itself (windows-ops).

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Docker Operations

Docker on your machine and in your repo: the files you write (Dockerfile, .dockerignore,
compose.yaml) and the engine that runs them. Versions verified 2026-10-07 (Compose v5,
Docker Desktop 4.94, WSL 3.0, Podman 6); `scripts/check-docker-facts.py --live` re-checks
them weekly.

**Why:** the costly Docker mistakes are silent. A secret is copied into a layer, a datastore
listens on every interface, `compose config` pastes credentials into a log, a prune deletes
a volume someone needed. The rules below stop those first.

## Hard rules

1. **Say what is lost before anything destructive, and confirm a sweep.** Removing one
   stopped container the user named is fine on an explicit ask. `docker kill`, any `prune`,
   `compose down -v`, `volume rm`, and anything unscoped (`docker rm -f $(docker ps -aq)`)
   needs a confirmation that names what goes. A sweep counts as a sweep even when
   everything in it is stopped: scope beats state. Tiers: [destructive-commands.md](references/destructive-commands.md).
2. **Never run `docker compose config` bare.** It prints interpolated values and inlines
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add 0xdarkmatter/claude-mods/docker-ops@sha256:3ba18d5d755fa940

The line at the top of this page pins the label git:20261007.cd3ef77, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_gm7d7jwnai5ojknt.svg)](https://markdownregistry.com/a/art_gm7d7jwnai5ojknt)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 8 versions of this file, between Mar 8, 2026 and Oct 7, 2026, about one every 30 days.

versioncommittedcommitsizeaudit
git:20261007.cd3ef77 latest2026-10-07 cd3ef77 13,580 BA view · diff
git:20261007.c017dbc2026-10-07 c017dbc 13,480 BA view · diff
git:20261007.f5889332026-10-07 f588933 13,435 BA view · diff
git:20261005.82dd4122026-10-05 82dd412 10,207 BA view · diff
git:20261005.4548fd22026-10-05 4548fd2 9,927 BA view · diff
git:20260705.0b8419c2026-07-05 0b8419c 9,667 BA view · diff
git:20260410.d2211362026-04-10 d221136 9,343 BA view · diff
git:20260308.ca165aa2026-03-08 ca165aa 9,298 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (13580 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

0xdarkmatter/claude-mods · 68 stars · license MIT · pushed 2026-10-14 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_gm7d7jwnai5ojknt
GET https://markdownregistry.com/api/v1/resolve?ref=0xdarkmatter/claude-mods/docker-ops
GET https://markdownregistry.com/api/v1/blob/3ba18d5d755fa940c68a2889c77b5beada90256cace90d2ddc70e5e8620aa694

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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