Does it automatically overwrite my Dockerfile?

No, the skill follows a workflow where it first identifies optimizations and presents a report. It only applies changes after receiving user confirmation.

How does this skill reduce Docker image size?

It analyzes image layers and suggests switching to smaller base images like Alpine or Slim, implementing multi-stage builds, and removing build-time dependencies from the final runtime stage.

Can it speed up my local development builds?

Yes, the skill optimizes layer ordering to ensure frequently changing files are handled last and adds BuildKit cache mounts to persist package manager caches between builds.

What Docker commands does this skill use?

It utilizes 'docker images', 'docker inspect', and 'docker history' to gather data about your current images before performing any analysis or refactoring.

Docker Image Optimizer

Name: Docker Image Optimizer
Author: jugrajsingh

byjugrajsingh

0•

Deployment & DevOps

Analyzes Docker image layers and applies best practices to reduce size, improve build speeds, and optimize layer caching.

This skill empowers Claude to audit your containerization strategy by examining Dockerfiles and image history to identify inefficiencies. It automatically suggests and implements advanced techniques such as multi-stage builds, cache mounts, and base image switching, helping teams achieve faster CI/CD pipelines and lower infrastructure costs through significantly smaller container footprints.

Key Features

01Layer reordering to maximize caching efficiency

02Automated image layer analysis and size profiling

03BuildKit cache mount integration for faster dependency installation

04Interactive optimization reports with before/after comparisons

050 GitHub stars

06Multi-stage build conversion for leaner production images

Use Cases

01Reducing container storage costs by switching to slim or distroless base images

02Refactoring bloated legacy Dockerfiles to follow modern container best practices

03Accelerating CI/CD pipelines by optimizing Docker layer caching

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add jugrajsingh/skillgarden optimizing

For use in Claude.ai and ChatGPT

Download Skill