Claude Code plugins
Claude Code plugins for safer, faster work.
Five Claude Code plugins, installed from one marketplace. Two are Claude Code hooks that stop costly mistakes before they happen. Three add whole workflows: commit messages and pull requests in your repository’s style, technical SEO audits traced to the line that fixes them, and AI code review by parallel specialists.
01Claude Code plugins
Five Claude Code plugins, one job each.
Each Claude Code plugin does one thing well. Open one for what it does, real output, and how to install it.
FailSafeClaude Code pluginStops destructive shell commands before they run.
KeySafeClaude Code pluginKeeps API keys, tokens and passwords out of your code and commits.
CommitWiseClaude Code pluginCommit messages and pull requests in your repository’s own style.
SearchReadyClaude Code pluginSEO and AI-search audits that trace every issue to the line that fixes it.
CrossCheckClaude Code pluginSecurity, accessibility and performance reviewers for every change.02Real output
All five, in real use.
Pick a Claude Code plugin to see its screens from real runs. Every value shown is what the tool returned.
03The basics
What a Claude Code plugin is made of.
A plugin bundles parts that would otherwise be set up one by one. Ours use four of them.
| Part | What it does | Where it lives | Our plugins that use it |
|---|---|---|---|
| Hooks | Run at set moments, such as before a tool call, and can block or ask | hooks/hooks.json | FailSafe, KeySafe |
| Commands | Workflows you start by name, such as /commitwise:commit | commands/*.md | CommitWise, SearchReady, CrossCheck |
| Agents | Specialist subagents with their own instructions and tools | agents/*.md | SearchReady, CrossCheck |
| MCP servers | Outside tools the plugin brings with it | .mcp.json | SearchReady (CrawlView), CrossCheck (HueProof) |
04The marketplace
The Claude Code plugins marketplace, explained.
A marketplace is a JSON file listing plugins and where to fetch them. Add ours once and every plugin and skill we publish installs by name, with updates from the same place.
/plugin marketplace add https://plugins.dudelemon.cloud/marketplace.json
/plugin install failsafe@dudelemon
# later, to pick up new versions
/plugin marketplace update dudelemon{
"name": "dudelemon",
"plugins": [{
"name": "failsafe",
"displayName": "FailSafe",
"version": "1.0.0",
"license": "MIT",
"source": {
"source": "archive",
"url": "https://plugins.dudelemon.cloud/plugins/failsafe.zip",
"sha256": "..."
}
}, ...]
}05Side by side
The five plugins, and when each acts.
Two act on their own, as hooks; three run when you call them.
| Plugin | Acts | What it does | Sends anything off your machine |
|---|---|---|---|
| FailSafe | Before every shell command | Blocks catastrophic commands, asks before risky ones | No |
| KeySafe | Before every edit, git add and commit | Keeps live keys out of code and commits | No |
| CommitWise | When you run its commands | Commit messages, commit splits and pull requests | Only to GitHub, if you open a PR |
| SearchReady | When you run its commands | Technical SEO and AI search audits traced to code | Page addresses to CrawlView |
| CrossCheck | When you run /crosscheck:review | Security, accessibility and performance review | Color values to HueProof |
06Install
One marketplace for all of them.
Add the Dude Lemon marketplace to Claude Code once with /plugin marketplace add https://plugins.dudelemon.cloud/marketplace.json, then install any of our tools by name with /plugin install <name>@dudelemon.
/plugin marketplace add https://plugins.dudelemon.cloud/marketplace.json/plugin install failsafe@dudelemonRun both commands inside Claude Code. The first adds the Dude Lemon marketplace once; the second installs the plugin.
07Why these
Built to be relied on, not just demoed.
Checks before it happens
FailSafe and KeySafe run as hooks: they see each command or file edit before it runs and block or ask when it would do damage.
Fits your repository
CommitWise reads your history and templates first, so messages and pull requests look like the ones your team already writes.
Specialists in parallel
CrossCheck runs security, accessibility and performance reviewers at the same time and keeps only findings it can confirm in the code.
Local by default
Hooks run on your machine. Only SearchReady and CrossCheck call our hosted MCP servers, and those receive a page address or color values, never your code.
FAQ
Claude Code plugins, answered
Anything we have not answered here, ask us directly. A senior engineer replies.
What is a Claude Code plugin?
A plugin packages slash commands, subagents, hooks and MCP servers so they install together. Hooks run before or after Claude uses a tool; commands and agents add workflows you call by name.
How do I install them?
Run /plugin marketplace add https://plugins.dudelemon.cloud/marketplace.json once in Claude Code, then /plugin install <name>@dudelemon. Plugins update from the same marketplace.
What do FailSafe and KeySafe need?
Node.js 18 or later and git. Their checks are small Node scripts that run locally on each command or edit and send nothing anywhere.
Will a hook ever block me by mistake?
Hooks block only clear cases, such as deleting a home folder or committing a live Stripe key. Anything uncertain asks you instead, and you can approve it on the spot.
Are they free?
Yes. All five plugins are free and MIT licensed.
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