dependency-guard

A Claude Code plugin that checks software packages before installation and analyzes them in a separate Modal sandbox, using Socket.dev reputation data.

In plain words
What is it for?
Reviewing package reputation, isolating package installation checks, and blocking suspicious packages before they reach your machine.
Why use it?
It helps reduce the risk of installing packages that behave suspiciously or contain supply-chain threats.

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 yongquantan/dependency-guard
agentmods
npx agentmods add plugins/yongquantan/dependency-guard/plugin
Clone the repo
git clone --depth 1 https://github.com/yongquantan/dependency-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

dependency-guard 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.

plugin/.claude-plugin/plugin.json · 34 lines

What it actually says

{
  "name": "dependency-guard",
  "description": "A dependency security plugin for Claude Code. DepGuard intercepts package installs, checks reputation with Socket.dev, runs installs in a Modal sandbox, and blocks suspicious behavior before it reaches your machine.",
  "version": "0.1.0",
  "author": {
    "name": "Yong Quan",
    "email": "[email protected]"
  },
  "homepage": "https://github.com/yongquantan/dependency-guard",
  "repository": "https://github.com/yongquantan/dependency-guard",
  "license": "MIT",
  "keywords": ["security", "supply-chain", "dependencies", "claude-code", "plugin", "hooks", "guardrails", "modal", "socket.dev"],
  "userConfig": {
    "socket_api_token": {
      "title": "Socket.dev API Token",
      "description": "For reputation checks. Free at https://socket.dev",
      "type": "string",
      "sensitive": true
    },
    "modal_token_id": {
      "title": "Modal Token ID",
      "description": "For sandbox analysis. Run 'modal token new' at https://modal.com",
      "type": "string",
      "sensitive": true
    },
    "modal_token_secret": {
      "title": "Modal Token Secret",
      "description": "From the same 'modal token new' command",
      "type": "string",
      "sensitive": true
    }
  }
}
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 · 34 lines scan A a61459ab5519

Subscribe to this mod's changes

dependency-guard is a plugin published in the GitHub repository yongquantan/dependency-guard (7 stars, last pushed 4mo 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.