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docker-helper

Build, debug, and optimize Docker configurations. Use when a user asks to create a Dockerfile, fix Docker build errors, optimize image size, write docker-com...

CursorClaude CodeCodexGemini CLIChecked 2026-11-01
The answer

Build, debug, and optimize Docker configurations.

Install

npx terminal-skills install docker-helper

Author's take / 作者点评

Works end-to-end once Docker Engine is running: multi-stage build and local run succeeded. Best for Dockerfile authors on a real Docker host; expect manual daemon start inside nested/agent VMs.

本机装好 Docker Engine 后可完整 build/run；适合写 Dockerfile 的人。嵌套/agent 环境常要手动起 dockerd。

What it does

Build, debug, and optimize Docker configurations. Use when a user asks to create a Dockerfile, fix Docker build errors, optimize image size, write docker-compose files, debug container issues, set up multi-stage builds, or troubleshoot networking between containers. Covers Dockerfile best practices and compose orchestration.

This entry summarizes the public skill for discovery. Prefer the upstream SKILL.md for the full instruction text (we do not paste restricted or lengthy proprietary prompt bodies).

Install & usage

Multi-agent install (Terminal Skills CLI)

npx terminal-skills install docker-helper

Manual curl examples:

# Claude Code
curl -sL https://raw.githubusercontent.com/TerminalSkills/skills/main/skills/docker-helper/SKILL.md -o .claude/skills/docker-helper.md
# Codex
curl -sL https://raw.githubusercontent.com/TerminalSkills/skills/main/skills/docker-helper/SKILL.md -o .codex/skills/docker-helper.md
# Cursor
curl -sL https://raw.githubusercontent.com/TerminalSkills/skills/main/skills/docker-helper/SKILL.md -o .cursor/skills/docker-helper.md

Best for

Dockerfile/compose debugging and image optimization guidance.

Hands-on test

  • test_level: fully-tested
  • Ran: yes
  • When: 2026-11-01T01:23:05+08:00 (Asia/Shanghai)
  • Result: Installed Docker Engine 26.1.5 on the box; wrote multi-stage Flask Dockerfile; docker build skillcheck-flask:local succeeded; container on :18080 returned docker-helper-ok; image ~124MB then removed container.
  • Gotchas: On this pod, invoke-rc.d/policy-rc.d blocked service start during dpkg — needed manual service docker start. First apt update needed sand egress HTTP proxy.

Money-saving tip

Skills are free/open-source; spend goes to your agent plan. Start on Cursor Plus ($8/mo) or Claude Pro / ChatGPT Go before upgrading.

Source & license