Claude Code mod
mod-lab
Shows what mods can do: a live list of events, a dump of what a mod can read, and demos you run with one press.
Install
/plugin marketplace add achapla/cc-mods
/plugin install mod-lab@cc-modsMods install like plugins. Run /reload-plugins or start a new session to load it.
What it can access
- Reach
- Unknown
- Sees
- every tool call, every prompt, the system prompt, every skill, subagent spawns, compaction
- Draws in
Pane- Hooks
session.startcommand.runtool.calltool.checkprompt.submitprompt.contextprompt.composeprompt.attachmentskill.promptagent.spawnturn.startturn.stepturn.completesession.appendsession.measuresession.compactsession.endui.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
- achapla/cc-mods
- Folder
mod-lab- Marketplace
cc-mods- Author
- Anand Chapla
- License
- MIT
- Last updated
- 6 October 2026
- Listed in
- awesome-claude-code-mods
FAQ
What is mod-lab?
Shows what mods can do: a live list of events, a dump of what a mod can read, and demos you run with one press. It is a mod for Claude Code, from achapla/cc-mods on GitHub.
What can the mod-lab mod access?
Its reach could not be worked out from its code. It sees every tool call, every prompt, the system prompt, every skill, subagent spawns, compaction. It draws in Pane. Like any mod, it runs with your permissions.
How do I install mod-lab?
Inside Claude Code (v2.1.287 or later), run /plugin marketplace add achapla/cc-mods and then /plugin install mod-lab@cc-mods.
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