attach-dev

A plugin marketplace listing for attach-guard, a security tool that checks software packages before they are installed.

In plain words
What is it for?
Use it to apply package-risk rules before running npm or pnpm install commands.
Why use it?
It helps prevent risky third-party packages from entering a project during installation.

Plugin for Claude Code

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 attach-dev/attach-guard
agentmods
npx agentmods add plugins/attach-dev/attach-guard/marketplace
Clone the repo
git clone --depth 1 https://github.com/attach-dev/attach-guard

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

attach-dev 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.

.claude-plugin/marketplace.json · 17 lines

What it actually says

{
  "name": "attach-dev",
  "owner": {
    "name": "Attach.dev"
  },
  "metadata": {
    "description": "Supply-chain security plugins for AI coding agents"
  },
  "plugins": [
    {
      "name": "attach-guard",
      "source": "./plugin",
      "description": "Intercepts npm/pnpm install commands and enforces package risk policies before execution."
    }
  ]
}
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.

  1. yesterday First seen · 17 lines scan A 8ce4ab55334d

Subscribe to this mod's changes

attach-dev is a plugin published in the GitHub repository attach-dev/attach-guard (7 stars, last pushed 3mo 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 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.