A safety plugin that blocks dangerous Bash commands before they run. Bash is a command-line shell commonly used to manage files and run development tools.

Use it as a protective check whenever an agent is about to run Bash commands.

It helps prevent destructive or unsafe shell commands from being executed accidentally.

bash-guards — Plugin by motlin

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 motlin/claude-code-plugins

agentmods

npx agentmods add plugins/motlin/claude-code-plugins/bash-guards

Clone the repo

git clone --depth 1 https://github.com/motlin/claude-code-plugins

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 0 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

bash-guards scanned grade A with 0 findings 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

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

What it actually says

{
	"$schema": "https://anthropic.com/claude-code/plugin.schema.json",
	"name": "bash-guards",
	"description": "Block dangerous bash commands before they execute",
	"version": "1.31.0",
	"license": "Apache-2.0",
	"author": {
		"name": "Craig Motlin"
	}
}

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 2bea77356f85

Subscribe to this mod's changes

bash-guards is a plugin published in the GitHub repository motlin/claude-code-plugins (15 stars, last pushed 3d ago), licensed Apache-2.0. 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 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

bash-guards

Getting it into your agent

Grade A, and why

Nothing flagged

What it actually says

What this file has done since we first saw it

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