# Container Diff

> Use this skill when the user wants to compare Docker container images to see what packages, files, or changes exist between versions.

- Skill: `javimosch/container-diff` (Agent Skill)
- Install (CLI): `npx skillmds@latest add javimosch/container-diff`
- Raw SKILL.md: https://api.skillmd.com/api/skills/javimosch/container-diff/raw
- Safety review: PASS (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: DevOps & Infra
- Author: javimosch (https://skillmd.com/u/javimosch)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/javimosch/container-diff

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# container-diff Plugin

container-diff analyzes differences between container images.

## Usage Examples

- "compare packages between two images"
- "diff filesystem contents of containers"
- "check what dependencies changed in new image version"

## Installation

```bash
npm install -g container-diff
```

## Key Features
- Package-level diff (pip, npm, apt)
- Filesystem comparison
- Multi-architecture image support
- Image change analysis
- Container image auditing