Claude Code mod
reef
Your homelab as an aquarium (/reef): every Docker container is a fish coloured by its stack, unhealthy ones float belly-up, the Ollama GPU is a heater that glows while a model is loaded, Home Assistant is a lighthouse that blinks red with repairs, and a crab walks the sand for each side session at work.
Install
/plugin marketplace add davidcoulson/crab-workshop
/plugin install reef@crab-workshopMods install like plugins. Run /reload-plugins or start a new session to load it.
What it can access
- Reach
- L3Network: network, MCP servers, reads mod state, draws
- Draws in
Pane- Hooks
session.startcommand.runui.render
From a static scan of the mod's code by awesome-claude-code-mods. It shows what the code asks for, not a security review.
How Claude Code mods work
- A mod is a plugin with a JavaScript or TypeScript module that runs inside Claude Code (version 2.1.287 or later). It can draw panes beside the transcript, a band above the prompt, buttons and toasts, restyle the spinner and tool rows, and watch or rewrite tool calls and prompts.
- It installs like any plugin: add its marketplace with /plugin marketplace add owner/repo, then /plugin install name@marketplace.
- Check what a mod can reach before installing: it runs with your permissions. Reach goes from drawing only, to reading files, to writing files or running processes, to the network. Run claude plugin validate on a clone to list its hooks and calls without running it.
- Turn one off from the Installed tab in /plugin, or start Claude Code with --safe-mode to skip every customization for a session.
Details
- Repository
- davidcoulson/crab-workshop
- Folder
plugins/reef- Marketplace
crab-workshop- Author
- David Coulson
- License
- MIT
- Last updated
- 12 October 2026
- Listed in
- awesome-claude-code-mods
FAQ
What is reef?
Your homelab as an aquarium (/reef): every Docker container is a fish coloured by its stack, unhealthy ones float belly-up, the Ollama GPU is a heater that glows while a model is loaded, Home Assistant is a lighthouse that blinks red with repairs, and a crab walks the sand for each side session at work. It is a mod for Claude Code, from davidcoulson/crab-workshop on GitHub.
What can the reef mod access?
Its widest reach is "network" (network, MCP servers, reads mod state, draws). It draws in Pane. Like any mod, it runs with your permissions.
How do I install reef?
Inside Claude Code (v2.1.287 or later), run /plugin marketplace add davidcoulson/crab-workshop and then /plugin install reef@crab-workshop.
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