Container Security Hardening

Q: What is a Claude Code skill and how does the Container Security Hardening skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Container Security Hardening is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Security category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Security · Sub-category: cloud-security · Last updated: 2026-06-04

Harden Docker/container images and runtime deployments with secure base images, non-root users, CVE scanning, SBOM/signing, seccomp/AppArmor, and Kubernetes pod security controls. Use for Dockerfile security reviews, container CVEs, image scanning, distroless images, or production hardening.

About this skill (catalog notes)

Container Security Hardening includes explicit scope boundaries (an explicit 'when not to use' or 'out of scope' section); a dedicated installation section; pricing or quota commentary. At roughly 3,551 words the SKILL.md is on the longer end of the catalog distribution.

Source: github.com/sickn33/antigravity-awesome-skills
License: MIT
Original author: zebbern
Indexed lastmod: 2026-06-04
Catalog position: Security · cloud-security
Indexed related skills: 10

How Container Security Hardening fits the catalog

Container Security Hardening sits in the Security category under the cloud-security sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

From the source SKILL.md

A production-focused guide for building, scanning, and running containers securely — from Dockerfile authoring through runtime enforcement and supply chain integrity.

What this skill does

Container Security Hardening is a community-contributed Claude Code skill in the cloud-security sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/container-security-hardening/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Container Security Hardening Claude Code skill is built for security engineers, penetration testers, DevSecOps practitioners, and development teams hardening codebases and infrastructure. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 119,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/container-security-hardening
curl -L https://claudskills.com/skills/container-security-hardening/SKILL.md \
  -o ~/.claude/skills/container-security-hardening/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/container-security-hardening/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/container-security-hardening/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\container-security-hardening\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Container Security Hardening Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/container-security-hardening/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Container Security Hardening skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Container Security Hardening skill?

Use Container Security Hardening when your Claude Code task falls under the Security category — specifically in the cloud security area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Container Security Hardening" or describe the task and let Claude pick). Browse related skills at /category/security/.

What is a Claude Code skill and how does the Container Security Hardening skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Container Security Hardening is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Security category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/zebbern/antigravity-awesome-skills/blob/HEAD/plugins/antigravity-awesome-skills-claude/skills/container-security-hardening/SKILL.md
License: MIT
Author: zebbern
Website: https://github.com/sickn33/antigravity-awesome-skills

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

zebbern. (2026). Container Security Hardening [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/container-security-hardening/

BibTeX

@misc{container-security-hardening-2026,
  author    = {zebbern},
  title     = {Container Security Hardening [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/container-security-hardening/}
}

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Browse all Security skills in the ClaudSkills registry, or explore these other picks from the same category:

Browse all Security skills → Top 100 skills

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