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Optimize Docker Build Cache

Checked
pjt222·vlatest·cloud·MIT

Helps with optimization, Docker, building as part of deploying and managing cloud infrastructure workflows.

Repository

Install on your platform

Showing Claude Code. One command installs this skill into any of the agents below.

  1. 1

    Run this in your project

    terminal
    $ npx skills add pjt222/agent-almanac --skill optimize-docker-build-cache -a claude-code

  2. Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

What we know about this skill

Publisher

pjt222

Taken from the source listing. We haven't verified who controls this account.

Install target

Live repository

Not pinned. Installing fetches whatever the repository holds at the time you run the command.

No human has reviewed this code. The checks below are a static scan of the files at one commit — nobody has run this skill or judged whether it works. A skill runs with whatever access you give your agent, so read the source before you install it.

Automated safety checks

scanned

This skill passed all 6 checks. We read its files at one commit and looked for the things that make a skill dangerous to run — not for whether it works.

  • Declares what it does: passed

    SKILL.md parses and declares a name and a description.

    SKILL.md exists, its frontmatter parses, and it declares a name and a description.

  • No undeclared network calls: passed

    Makes no network calls.

    Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.

  • No obfuscated payloads: passed

    No encoded or obfuscated payloads.

    No base64, hex or compressed blob is decoded and then executed, and no encoded shell commands.

  • No credential access: passed

    Reads no keys, tokens, keychains or credential files.

    Neither the code nor the SKILL.md instructions read SSH keys, cloud credentials, keychains, token stores, browser cookie databases or dotfiles that hold secrets.

  • No pipe-to-shell installers: passed

    No pipe-to-shell or download-and-run installers.

    No `curl … | sh` pattern, in the code or in the instructions, that runs code fetched at run time.

  • Pinned to a commit: passed

    Scanned pjt222/development-guides at bcca822c1c.

    The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.

Commit
bcca822c1c
Manifest
skills/optimize-docker-build-cache/SKILL.md
Scanned
3 files, 653 lines
Copies in repo
3 — all of them scanned
This is a static scan, not a review. It reads the skill's files; it does not run them, and it cannot tell you whether the skill is any good or whether the code does what its description says. A skill runs with whatever access you give your agent.
What each check looks for →

About this skill

What it does

This skill analyzes a Docker build process and suggests optimizations to the Docker cache. It identifies layers that are not being cached effectively, providing recommendations for restructuring Dockerfile instructions or utilizing multi-stage builds. The goal is to significantly reduce build times by leveraging the Docker layer caching mechanism more efficiently.

When to use it

  • Slow Build Times: When your Docker image builds take an excessively long time and you suspect inefficient cache usage.
  • Frequent Changes: When small changes in your application trigger a rebuild of many layers due to cache invalidation.
  • Large Projects: For complex projects with numerous dependencies where build times can become a significant bottleneck.
  • CI/CD Pipelines: To optimize CI/CD pipelines and reduce the overall deployment time.

Key capabilities

  • Dockerfile analysis
  • Cache layer identification
  • Optimization recommendations
  • Multi-stage build suggestions

Example prompts

  • "Analyze this Dockerfile and suggest ways to improve cache utilization: [Dockerfile content]"
  • "My Docker image builds are taking too long. Can you identify potential caching issues in my Dockerfile?"
  • "Suggest a multi-stage build strategy for this Dockerfile: [Dockerfile content]"

Tips & gotchas

  • The skill requires the complete contents of your Dockerfile as input. Ensure it's accurately provided for effective analysis.