What is ardur-claude-code-hook?

A runtime control for Claude Code that limits tool calls to an approved mission and creates signed records of what was executed.

Use it to deny out-of-scope tool calls and create signed execution receipts for Claude Code actions.

It helps prevent tool actions outside the task’s allowed scope and provides records that can be checked later.

ardur-claude-code-hook — Plugin by ArdurAI

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 ArdurAI/ardur

agentmods

npx agentmods add plugins/ardurai/ardur/claude-code

Clone the repo

git clone --depth 1 https://github.com/ArdurAI/ardur

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

ardur-claude-code-hook 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 · 9 lines

What it actually says

{
  "name": "ardur-claude-code-hook",
  "version": "0.1.0",
  "description": "Ardur runtime governance for Claude Code: mission-bound deny gating and signed Execution Receipts on tool calls.",
  "author": {
    "name": "Ardur"
  }
}

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 · 9 lines scan A 58cebdc1f213

Subscribe to this mod's changes

ardur-claude-code-hook is a plugin published in the GitHub repository ArdurAI/ardur (2 stars, last pushed yesterday), 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.

AI Safety Security agent-governance ai-agents ai-governance open-source runtime-security

ardur-claude-code-hook

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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