claude-code

A Claude Code add-on that provides a readiness-check workflow for AI agents using tools. It uses the separately installed Agents Shipgate command-line scanner.

In plain words
What is it for?
Use it to run the Agents Shipgate workflow from Claude Code and install its automated edit and stop checks.
Why use it?
It helps check whether an agent project is ready to use tools and can add checks after edits and when work stops. Without it, these checks must be run manually.

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 ThreeMoonsLab/agents-shipgate
agentmods
npx agentmods add plugins/threemoonslab/agents-shipgate/claude-code
Clone the repo
git clone --depth 1 https://github.com/ThreeMoonsLab/agents-shipgate

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

claude-code 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/claude-code/.claude-plugin/plugin.json · 22 lines

What it actually says

{
  "name": "agents-shipgate",
  "version": "0.16.0b7",
  "description": "Run Agents Shipgate Tool-Use Readiness workflows from Claude Code. Skill-only: the plugin supplies the agents-shipgate skill and the /agents-shipgate:shipgate command; the scanner runs through the agents-shipgate CLI installed in the local environment (pipx install agents-shipgate, runtime contract 15). For the deterministic hooks (trigger check after edits, full verify at Stop), run: agents-shipgate install-hooks --target claude-code --write.",
  "author": {
    "name": "Three Moons Lab",
    "email": "[email protected]",
    "url": "https://threemoonslab.com/"
  },
  "homepage": "https://threemoonslab.com/",
  "repository": "https://github.com/ThreeMoonsLab/agents-shipgate",
  "license": "Apache-2.0",
  "keywords": [
    "agents",
    "claude-code",
    "tool-use-readiness",
    "release-gate",
    "mcp-security",
    "policy-as-code"
  ]
}
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 · 22 lines scan A b8b8b312bf42

Subscribe to this mod's changes

claude-code is a plugin published in the GitHub repository ThreeMoonsLab/agents-shipgate (87 stars, last pushed 2d 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.