Claude Code mod
arrester
After a hook, deny rule, or auto mode blocks a tool call, Arrester stops later calls that reach the same result another way or read or change your guards. After your No, it stops only exact retries.
Install
/plugin marketplace add dot-agi/arrester
/plugin install arrester@arresterMods install like plugins. Run /reload-plugins or start a new session to load it.
What it can access
- Reach
- L1Reads: reads files, reads env vars, reads settings, reads mod state, draws
- Sees
- classic hooks, every tool call
- Hooks
session.startsession.endclassic.SessionStartclassic.PreToolUsetool.checkclassic.PermissionDeniedtool.callcommand.run
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
- dot-agi/arrester
- Folder
.- Marketplace
arrester- Author
- dot-agi
- License
- MIT
- Last updated
- 24 October 2026
- Listed in
- awesome-claude-code-mods
FAQ
What is arrester?
After a hook, deny rule, or auto mode blocks a tool call, Arrester stops later calls that reach the same result another way or read or change your guards. After your No, it stops only exact retries. It is a mod for Claude Code, from dot-agi/arrester on GitHub.
What can the arrester mod access?
Its widest reach is "reads" (reads files, reads env vars, reads settings, reads mod state, draws). It sees classic hooks, every tool call. Like any mod, it runs with your permissions.
How do I install arrester?
Inside Claude Code (v2.1.287 or later), run /plugin marketplace add dot-agi/arrester and then /plugin install arrester@arrester.
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