What is agentguards-claude-selfhosted?

A Claude Code security add-on that connects hooks to a self-hosted AgentGuards appliance. Hooks are automatic checks that run when prompts are submitted or tools are used.

It is for enforcing security checks on Claude Code prompts, Bash commands, web content, and actions that could delete or expose data.

It checks prompts and tool activity for jailbreaks, hidden instructions in web content, data theft, and destructive commands before or after they are handled.

agentguards-claude-selfhosted — Plugin for Claude Code by alelaguard

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.

Clone the repo

git clone --depth 1 https://github.com/alelaguard/agentguards-plugins

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/plugins/alelaguard/agentguards-plugins/claude-selfhosted/github.svg)](https://agentmods.dev/plugins/alelaguard/agentguards-plugins/claude-selfhosted)

Your own site

<a href="https://agentmods.dev/plugins/alelaguard/agentguards-plugins/claude-selfhosted"><img src="https://agentmods.dev/badge/plugins/alelaguard/agentguards-plugins/claude-selfhosted/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/plugins/alelaguard/agentguards-plugins/claude-selfhosted"><img src="https://agentmods.dev/badge/plugins/alelaguard/agentguards-plugins/claude-selfhosted.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session not measured What this adds to a session before it is invoked.

When invoked not measured The manifest loads nothing itself; its 3 skills, 3 hooks cost 143 tokens a session between them.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

agentguards-claude-selfhosted 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 2mo ago.

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-selfhosted/.claude-plugin/plugin.json · 15 lines

What it actually says

{
  "name": "agentguards-claude-selfhosted",
  "displayName": "AgentGuards (Self-Hosted)",
  "description": "LLM security guardrails for Claude Code, for a self-hosted AgentGuards appliance — jailbreak detection, prompt-injection and web-content scanning, data-exfiltration blocking, and destructive-command authorization, enforced entirely by hooks. No bundled MCP server: Claude Code's .mcp.json cannot point at a per-installation URL, so a shared one would silently talk to AgentGuards' SaaS instead of your appliance. Use agentguards-claude instead if you're on the hosted product.",
  "version": "0.1.11",
  "author": {
    "name": "AgentGuards",
    "email": "[email protected]",
    "url": "https://agentguards.co"
  },
  "homepage": "https://agentguards.co",
  "repository": "https://github.com/alelaguard/agentguards-plugins",
  "license": "MIT"
}

Contents

What it installs

The manifest is a name and a version. 3 skills, 3 hooks travel with it, and installing the plugin installs all of them — 143 tokens a session between them. Each is measured on its own page, and each can be installed alone.

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.

2mo ago First seen · 15 lines scan A c3ac98c32772

Subscribe to this mod's changes

agentguards-claude-selfhosted is a plugin published in the GitHub repository alelaguard/agentguards-plugins (4 stars, last pushed 4d 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.

Building agents Claude Code Guardrails Security ai-security claude-code-plugin codex llm-security

agentguards-claude-selfhosted next to 6 plugins from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
agentguards-claude-selfhostedalelaguard/agentguards-plugins	Plugin	4	4d ago	MIT	A	—	Claude Code
skilltotal marketplacepezhik/skilltotal	Plugin	16	yesterday	Apache-2.0	A	—	Claude Code
agentlintmauhpr/agentlint-plugin	Plugin	3	5d ago	MIT	A	—	Claude Code
bridgewardbridge-mind/BridgeWard	Plugin	40	6mo ago	MIT	A	—	Claude Code
sllMohamedEmbarak/SLL	Plugin	1	2mo ago	MIT	A	—	Claude Code
auto-ccSSHdotCodes/auto-cc	Plugin	1	3mo ago	Apache-2.0	A	—	Claude Code
cybersecurity-propitimon/claude-cybersecurity-skill	Plugin	6	1mo ago	none	A	—	Claude Code