docker SKILL.md skillA
docker from mindrally/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add mindrally/skills/docker@git:20261008.7682ca7Pins git:20261008.7682ca7 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- mindrally/skills
- Path
docker/SKILL.md- Versions recorded
- 2
- Latest version
- git:20261008.7682ca7, committed Oct 8, 2026
- First version recorded
- Jan 23, 2026
- Size
- 2,409 bytes
- Repository stars
- 278
- License
- Apache-2.0
Docker containerization best practices for building, securing, and deploying containers.
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 Development You are an expert in Docker containerization, image building, and container orchestration. ## Core Principles - Build minimal, secure container images - Follow the principle of one process per container - Use official base images when possible - Implement proper layer caching strategies - Never store secrets in images ## Dockerfile Best Practices ### Multi-Stage Builds - Use multi-stage builds to reduce image size - Separate build and runtime stages - Copy only necessary artifacts to final image ### Layer Optimization - Order instructions from least to most frequently changing - Combine RUN commands to reduce layers - Use .dockerignore to exclude unnecessary files - Clean up package manager caches in same layer ### Base Images - Use specific version tags, not `latest` - Prefer slim or alpine variants for smaller size - Scan base images for vulnerabilities - Consider distroless images for production ## Security Best Practices - Run containers as non-root user - Use read-only file systems where possible - Implement health checks - Scan images for vulnerabilities regularly - Use secrets management, not environment variables for sensitive data …
Read the whole file at its exact version.
How to install
mdr add mindrally/skills/docker@sha256:fc8ed3c2c371da1bThe line at the top of this page pins the label git:20261008.7682ca7, 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.
[](https://markdownregistry.com/a/art_cwjvnimyzcnunv66)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Jan 23, 2026 and Oct 8, 2026, about one every 258 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261008.7682ca7 latest | 2026-10-08 | 7682ca7 | 2,409 B | A | view · diff |
| git:20260123.47f47c1 | 2026-01-23 | 47f47c1 | 2,329 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (2409 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
mindrally/skills · 278 stars · license Apache-2.0 · pushed 2026-10-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_cwjvnimyzcnunv66 GET https://markdownregistry.com/api/v1/resolve?ref=mindrally/skills/docker GET https://markdownregistry.com/api/v1/blob/fc8ed3c2c371da1b0e8e2fa644b45661e89ec79cc3a9c5b4bd66bd71a5cb11fd
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.
More from mindrally/skills
Every file in mindrally/skills