gwsadm-mcp

A Claude Code plugin for read-only Google Workspace security audits. Google Workspace is Google’s business suite, including user accounts, Gmail, Drive, and Groups; the plugin checks their security and activity data through a service account.

In plain words
What is it for?
Use it to review suspicious or disabled logins, suspended accounts, OAuth app grants, external Drive sharing, group delivery rules, Gmail message delivery, and a daily security brief. You must supply the local configuration file and Google service-account key files.
Why use it?
It gathers several audit checks in one place without making changes to Workspace data. It helps investigate account access, third-party app permissions, file exposure, group policies, and email delivery across one or more domains.

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 shigechika/gwsadm-mcp
agentmods
npx agentmods add plugins/shigechika/gwsadm-mcp/plugin
Clone the repo
git clone --depth 1 https://github.com/shigechika/gwsadm-mcp

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

gwsadm-mcp 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 · 23 lines

What it actually says

{
  "$schema": "https://json.schemastore.org/claude-code-plugin-manifest.json",
  "name": "gwsadm-mcp",
  "displayName": "gwsadm-mcp",
  "description": "Google Workspace security-audit MCP for Claude Code, through a service account with domain-wide delegation. Investigate suspicious/disabled logins, suspended accounts, third-party OAuth grants, Drive external sharing, group delivery policy, and Gmail message tracing across one or more Workspace domains, plus a one-shot daily_brief. Read-only — no Directory/Reports/Gmail write calls anywhere in this package. Needs a local GWSADM_CONFIG INI file, and the Google Cloud service-account JSON key(s) it references, already present on the machine; the plugin cannot create or supply those files for you.",
  "author": {
    "name": "AIKAWA Shigechika",
    "url": "https://github.com/shigechika"
  },
  "homepage": "https://shigechika.github.io/gwsadm-mcp/",
  "repository": "https://github.com/shigechika/gwsadm-mcp",
  "license": "MIT",
  "keywords": [
    "google-workspace",
    "admin-sdk",
    "directory",
    "gmail",
    "drive",
    "audit",
    "security"
  ]
}
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 · 23 lines scan A 1b7646cfc800

Subscribe to this mod's changes

gwsadm-mcp is a plugin published in the GitHub repository shigechika/gwsadm-mcp (0 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 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.