macOS Cleaner
daymade/claude-code-skills
Diagnoses and safely reclaims macOS disk space: caches, logs, app remnants, large/duplicate files, Docker/OrbStack, Chromium code-sign clones, developer caches.
Review a Dockerfile for image size, layer caching and running as root, and suggest fixes.
Install Dockerfile Review
$ npx skills add zhuyansen/agent-skills-hub --skill dockerfile-review -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install zhuyansen/agent-skills-hub dockerfile-review --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/zhuyansen/agent-skills-hub.git skills-src && mkdir -p .claude/skills && cp -r skills-src/ops/skillmgr-runs/in/input/library/dockerfile-review .claude/skills/dockerfile-review && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "dockerfile-review" agent skill from https://github.com/zhuyansen/agent-skills-hub/tree/main/ops/skillmgr-runs/in/input/library/dockerfile-review into .claude/skills/dockerfile-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "dockerfile-review", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/zhuyansen/agent-skills-hub/tree/main/ops/skillmgr-runs/in/input/library/dockerfile-reviewType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add zhuyansen/agent-skills-hub --skill dockerfile-review -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install zhuyansen/agent-skills-hub dockerfile-review --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/zhuyansen/agent-skills-hub.git skills-src && mkdir -p .agents/skills && cp -r skills-src/ops/skillmgr-runs/in/input/library/dockerfile-review .agents/skills/dockerfile-review && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "dockerfile-review" agent skill from https://github.com/zhuyansen/agent-skills-hub/tree/main/ops/skillmgr-runs/in/input/library/dockerfile-review into .agents/skills/dockerfile-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "dockerfile-review", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add zhuyansen/agent-skills-hub --skill dockerfile-review -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install zhuyansen/agent-skills-hub dockerfile-review --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/zhuyansen/agent-skills-hub.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/ops/skillmgr-runs/in/input/library/dockerfile-review .cursor/skills/dockerfile-review && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "dockerfile-review" agent skill from https://github.com/zhuyansen/agent-skills-hub/tree/main/ops/skillmgr-runs/in/input/library/dockerfile-review into .cursor/skills/dockerfile-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "dockerfile-review", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/zhuyansen/agent-skills-hub.git --path ops/skillmgr-runs/in/input/library/dockerfile-review--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add zhuyansen/agent-skills-hub --skill dockerfile-review -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install zhuyansen/agent-skills-hub dockerfile-review --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/zhuyansen/agent-skills-hub.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/ops/skillmgr-runs/in/input/library/dockerfile-review .gemini/skills/dockerfile-review && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "dockerfile-review" agent skill from https://github.com/zhuyansen/agent-skills-hub/tree/main/ops/skillmgr-runs/in/input/library/dockerfile-review into .gemini/skills/dockerfile-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "dockerfile-review", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install zhuyansen/agent-skills-hub dockerfile-reviewInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add zhuyansen/agent-skills-hub --skill dockerfile-review -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/zhuyansen/agent-skills-hub.git skills-src && mkdir -p .github/skills && cp -r skills-src/ops/skillmgr-runs/in/input/library/dockerfile-review .github/skills/dockerfile-review && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "dockerfile-review" agent skill from https://github.com/zhuyansen/agent-skills-hub/tree/main/ops/skillmgr-runs/in/input/library/dockerfile-review into .github/skills/dockerfile-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "dockerfile-review", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add zhuyansen/agent-skills-hub --skill dockerfile-review -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install zhuyansen/agent-skills-hub dockerfile-review --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/zhuyansen/agent-skills-hub.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/ops/skillmgr-runs/in/input/library/dockerfile-review .opencode/skills/dockerfile-review && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "dockerfile-review" agent skill from https://github.com/zhuyansen/agent-skills-hub/tree/main/ops/skillmgr-runs/in/input/library/dockerfile-review into .opencode/skills/dockerfile-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "dockerfile-review", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
dockerfile-review- GitHub stars
- 413
- Token cost
- ~192 tokens
- SKILL.md length
- 115 words
- Files
- 1
- Skills in repo
- 21
- Repo updated
- First seen
- Licence
- MIT
At a glance
Review a Dockerfile for image size, layer caching and running as root, and suggest fixes.
- Works in 3 steps: Read the input the user points to. If… → Do the task described above, step by… → Show the result, then a short list of…
- Tasks that involve Containers
- SKILL.md covers When to use, Steps and Notes
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Dockerfile Review is an agent skill from zhuyansen/agent-skills-hub. Review a Dockerfile for image size, layer caching and running as root, and suggest fixes.
Its SKILL.md is about 190 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in DevOps & Cloud, covering Containers and Caching. It works with Docker. The repository describes itself as: Discover and compare open-source Agent Skills, tools & MCP servers — with quality scoring, trending analysis, and automated GitHub sync. The licence is MIT.
When your agent uses it
- Tasks that involve Containers
- Tasks that involve Caching
Example prompts
- “/dockerfile-review”
Workflow steps
3 steps, taken from the first numbered list in SKILL.md.
- Read the input the user points to. If none is given, ask for the file or text.
- Do the task described above, step by step, and keep the user's own wording where it matters.
- Show the result, then a short list of what you changed or found, so the user can check it.
What it can do on your machine
Read from SKILL.md and the folder at commit 2862275. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Dockerfile Review loads about 192 tokens when it runs. Until then it costs about 27 tokens; SKILL.md has 115 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from zhuyansen/agent-skills-hub at commit 2862275, republished under its MIT licence (© zhuyansen). 115 words, ~192 tokens.
Download SKILL.mdSave it as
.claude/skills/dockerfile-review/SKILL.md (or your agent's skills folder).- name
- dockerfile-review
- description
- Review a Dockerfile for image size, layer caching and running as root, and suggest fixes.
Dockerfile Review
Review a Dockerfile for image size, layer caching and running as root, and suggest fixes.
When to use
Use this skill when the user asks for it by name or describes this task. Do not use it for unrelated work.
Steps
- Read the input the user points to. If none is given, ask for the file or text.
- Do the task described above, step by step, and keep the user's own wording where it matters.
- Show the result, then a short list of what you changed or found, so the user can check it.
Notes
- Keep changes small and reversible.
- Say plainly when the input is incomplete instead of guessing.
© zhuyansen, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in ops/skillmgr-runs/in/input/library/dockerfile-review of zhuyansen/agent-skills-hub.
Open the folder on GitHubat commit 2862275
Compare with similar skills
Dockerfile Review next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Dockerfile Review this skillzhuyansen/agent-skills-hub | 413 | — | ~192 | Automated safety check: Pass | MIT | |
| macOS Cleanerdaymade/claude-code-skills | 1.4k | — | ~10k | Automated safety check: Notes | MIT | |
| Modalericrisco/rsc-harness | 180 | — | ~3.5k | Automated safety check: Pass | MIT | |
| Iron Proxy Gateway for NanoClawnanocoai/nanoclaw | 31k | — | ~4.6k | Automated safety check: Notes | MIT | |
| GreptimeDB Dev Docker ImageGreptimeTeam/greptimedb | 6.7k | — | ~4k | Automated safety check: Notes | Apache-2.0 | |
| Senior DevOps Toolkitmaslennikov-ig/claude-code-orchestrator-kit | 260 | 6 repos | ~1.1k | Automated safety check: Notes | Custom licence |
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Related
Works with
Categories
Questions about Dockerfile Review
What does Dockerfile Review do?
Review a Dockerfile for image size, layer caching and running as root, and suggest fixes. Dockerfile Review is an agent skill from zhuyansen/agent-skills-hub. Review a Dockerfile for image size, layer caching and running as root, and suggest fixes.
When should I use Dockerfile Review?
Dockerfile Review fits situations like: tasks that involve Containers; tasks that involve Caching.
How do I install Dockerfile Review in Claude Code?
Run `npx skills add zhuyansen/agent-skills-hub --skill dockerfile-review -a claude-code`. Or copy the skill folder (ops/skillmgr-runs/in/input/library/dockerfile-review in zhuyansen/agent-skills-hub) into .claude/skills/dockerfile-review in your project. Claude Code loads it when a task matches its description.
How do I install Dockerfile Review in Codex?
Run `npx skills add zhuyansen/agent-skills-hub --skill dockerfile-review -a codex`. Or copy the skill folder (ops/skillmgr-runs/in/input/library/dockerfile-review in zhuyansen/agent-skills-hub) into .agents/skills/dockerfile-review in your project. Codex loads it when a task matches its description.
Can I use Dockerfile Review in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add zhuyansen/agent-skills-hub --skill dockerfile-review -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/dockerfile-review, .gemini/skills/dockerfile-review, .github/skills/dockerfile-review and .opencode/skills/dockerfile-review in your project.
What does Dockerfile Review need to run?
SKILL.md names no scripts, command-line tools or credentials: Dockerfile Review is instructions for the agent only.
Does Dockerfile Review access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Dockerfile Review safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Dockerfile Review use?
Dockerfile Review is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Dockerfile Review use?
About 192 tokens (SKILL.md is roughly 768 characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Dockerfile Review?
Skills that share tags, products or a category with Dockerfile Review: macOS Cleaner (daymade/claude-code-skills, 1.4k stars), Modal (ericrisco/rsc-harness, 180 stars), Iron Proxy Gateway for NanoClaw (nanocoai/nanoclaw, 31k stars) and GreptimeDB Dev Docker Image (GreptimeTeam/greptimedb, 6.7k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Dockerfile Review?
zhuyansen (a GitHub user) maintains it in zhuyansen/agent-skills-hub, which has 413 GitHub stars. The repository holds 21 skills in this directory. The repository was last updated on October 10, 2026.
Source: zhuyansen/agent-skills-hub on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.