A shell-command safety check with user-editable rules. Shell commands are instructions typed into a terminal to operate on files, Git, and other system tools.

Use it to review every Bash command against rules for dangerous file deletion, Git history changes, downloaded scripts, and identity-management changes.

It can block risky commands before they run, including destructive Git or filesystem operations and untrusted commands piped from the internet.

bash-guard — Plugin by bradlay

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Claude Code

/plugin marketplace add bradlay/claude-code-recipes

agentmods

npx agentmods add plugins/bradlay/claude-code-recipes/bash-guard

Clone the repo

git clone --depth 1 https://github.com/bradlay/claude-code-recipes

Made for: Claude Code.

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 1 finding. Scan, not verified.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

bash-guard scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

"description": "PreToolUse(Bash) hook that evaluates every shell command against a configurable rule set. Default rules block destructive git operations, filesystem-nuking commands, untrusted curl-pipe-to-shell patterns,

plugins/bash-guard/.claude-plugin/plugin.json · 11 lines

What it actually says

{
  "name": "bash-guard",
  "version": "0.1.0",
  "description": "PreToolUse(Bash) hook that evaluates every shell command against a configurable rule set. Default rules block destructive git operations, filesystem-nuking commands, untrusted curl-pipe-to-shell patterns, and identity-management changes. Rules are user-editable.",
  "author": {
    "name": "bradlay"
  },
  "homepage": "https://github.com/bradlay/claude-code-recipes",
  "license": "MIT"
}

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

yesterday First seen · 11 lines scan A 6a7d7e276855

Subscribe to this mod's changes

bash-guard is a plugin published in the GitHub repository bradlay/claude-code-recipes (2 stars, last pushed 10d ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Code review Git and workflow

bash-guard

Getting it into your agent

Grade A, and why

Makes network callslowCapability

What it actually says

What this file has done since we first saw it

Other plugins, from other repositories

nextjs

nextjs

claude-plugins-official

knowledge-work-plugins

ecc

ecc