dockerfile-validator SKILL.md skillA
This file is byte-identical to the first copy the registry indexed. Same content hash, so the same checks give both the same grade.
dockerfile-validator from hybridlabor-api/aos is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add hybridlabor-api/aos/dockerfile-validator@git:20260930.08ad51dPins git:20260930.08ad51d in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- hybridlabor-api/aos
- Path
skills/global_config/dockerfile-validator/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260930.08ad51d, committed Sep 30, 2026
- Size
- 9,329 bytes
- Repository stars
- 6
- License
- Apache-2.0
Validate, lint, audit, or scan a Dockerfile for security and best practices.
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
# Dockerfile Validator Validate Dockerfiles with deterministic stages, clear severity reporting, and explicit fallbacks when tools or network access are constrained. ## Trigger Phrases Use this skill when the user asks for tasks like: - "validate this Dockerfile" - "lint/check my Dockerfile" - "security scan Dockerfile" - "optimize Docker image size/build time" - "review Dockerfile before merge" - "find issues in Dockerfile.prod/Dockerfile.dev" ## Use / Do Not Use Use this skill for: - Syntax and lint validation - Security and secrets checks - Best-practice and performance review - Dockerfile hardening before CI/CD or production Do not use this skill for: - Generating a new Dockerfile from scratch (use `dockerfile-generator`) - Running containers, debugging runtime behavior, or image registry operations ## Local Files In This Skill - Validator script: `scripts/dockerfile-validate.sh` - References: - `references/security_checklist.md` - `references/optimization_guide.md` - `references/docker_best_practices.md` - Example Dockerfiles: `examples/*.Dockerfile` ## Deterministic Execution Flow (Required) …
Read the whole file at its exact version.
How to install
mdr add hybridlabor-api/aos/dockerfile-validator@sha256:c03737a474c0e1ffThe line at the top of this page pins the label git:20260930.08ad51d, 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_5ugejhou4d2gz5cw)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Sep 30, 2026.
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 (9329 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
hybridlabor-api/aos · 6 stars · license Apache-2.0 · pushed 2026-10-15 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_5ugejhou4d2gz5cw GET https://markdownregistry.com/api/v1/resolve?ref=hybridlabor-api/aos/dockerfile-validator GET https://markdownregistry.com/api/v1/blob/c03737a474c0e1ff1311332c1a27df4b3d0c8877fc7b1018e019d22a94e76314
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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