Claude Code mod

rulebook-guard

Writing and git rules: replaces em dashes in prose, and asks before git commit --amend, an unformatted push, or personal info in notes and commits.

Guard & safety mods Plugin marketplaceValidates on Claude Code 2.1.316 Source

Install

Inside Claude Code

/plugin marketplace add thorstenalpers/claude-code-mods
/plugin install rulebook-guard@claude-code-mods

Mods install like plugins. Run /reload-plugins or start a new session to load it.

What it can access

Reach: L2Writes or runs: runs processes, reads files, reads env vars, draws
Sees: Write calls, Edit calls, Bash calls, every tool call
Hooks: tool.call

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.

Claude Code docs

Details

Repository: thorstenalpers/claude-code-mods
Folder: mods/rulebook-guard
Marketplace: claude-code-mods
Author: Hamza Zafar
Type: Guard & safety mods
License: MIT
Last updated: 12 October 2026
Listed in: awesome-claude-code-mods

FAQ

What is rulebook-guard?

Writing and git rules: replaces em dashes in prose, and asks before git commit --amend, an unformatted push, or personal info in notes and commits. It is a mod for Claude Code, from thorstenalpers/claude-code-mods on GitHub.

What can the rulebook-guard mod access?

Its widest reach is "writes or runs" (runs processes, reads files, reads env vars, draws). It sees Write calls, Edit calls, Bash calls, every tool call. Like any mod, it runs with your permissions.

How do I install rulebook-guard?

Inside Claude Code (v2.1.287 or later), run /plugin marketplace add thorstenalpers/claude-code-mods and then /plugin install rulebook-guard@claude-code-mods.

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