Claude Code mod

guardrail

Blocks hook-skipping git commands and live data operations that have no successful dry run first; you can allow one at a time

Guard & safety modsValidates on Claude Code 2.1.316 Source

Install

From source
git clone https://github.com/tylergraydev/cc-mods.git
claude --plugin-dir ./cc-mods/guardrail

The repo has no marketplace file, so load the plugin folder directly with --plugin-dir.

What it can access

Reach
L1Reads: reads mod state, draws
Sees
Bash|PowerShell|Monitor calls
Draws in
AbovePrompt
Hooks
session.startsession.endtool.callcommand.runui.renderprompt.compose

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
tylergraydev/cc-mods
Folder
guardrail
Author
tylergraydev
Type
Guard & safety mods
Last updated
12 October 2026
Listed in
awesome-claude-code-mods

FAQ

What is guardrail?

Blocks hook-skipping git commands and live data operations that have no successful dry run first; you can allow one at a time It is a mod for Claude Code, from tylergraydev/cc-mods on GitHub.

What can the guardrail mod access?

Its widest reach is "reads" (reads mod state, draws). It sees Bash|PowerShell|Monitor calls. It draws in AbovePrompt. Like any mod, it runs with your permissions.

How do I install guardrail?

Clone tylergraydev/cc-mods and start Claude Code with --plugin-dir pointing at the mod's folder (guardrail).

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Holds a prompt that carries a credential shape and offers to send it redacted, telling Claude where the value really lives.

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Never commits docs/superpowers, never pushes unless you said push, asks before committing on main/staging/prod

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Asks before Claude edits a file that another tool (Gemini, an editor, another agent) changed in the last few minutes, through Edit/Write, a shell command that writes, or an MCP write tool. A Cancel keeps asking until you say Edit anyway or the change ages out.

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