diff --git a/.claude-plugin/marketplace.json b/.claude-plugin/marketplace.json
index ef2e67b..c690c08 100644
--- a/.claude-plugin/marketplace.json
+++ b/.claude-plugin/marketplace.json
@@ -25,6 +25,23 @@
       "keywords": ["skills", "learn", "install", "agent", "directory"],
       "category": "productivity",
       "tags": ["skills", "marketplace", "discovery"]
+    },
+    {
+      "name": "hol-guard",
+      "source": {
+        "source": "github",
+        "repo": "hashgraph-online/hol-guard-plugin"
+      },
+      "description": "Install and operate HOL Guard local security for AI coding agents, MCP, skills, plugins, and package actions.",
+      "version": "0.1.0",
+      "author": {
+        "name": "Hashgraph Online",
+        "url": "https://hol.org/guard"
+      },
+      "homepage": "https://hol.org/guard",
+      "repository": "https://github.com/hashgraph-online/hol-guard-plugin",
+      "license": "Apache-2.0",
+      "keywords": ["hol-guard", "ai-security", "agent-security", "mcp", "supply-chain-security"]
     }
   ]
 }
diff --git a/README.md b/README.md
index 0571c2f..b46d3c3 100644
--- a/README.md
+++ b/README.md
@@ -38,9 +38,10 @@ ags setup
 ```bash
 /plugin marketplace add https://agentskill.sh/marketplace.json
 /plugin install learn@agentskill-sh
+/plugin install hol-guard@agentskill-sh
 ```
 
-Note: the plugin marketplace only installs the `/learn` skill. Use `npx @agentskill.sh/cli setup` to get all skills.
+The plugin marketplace includes `/learn` plus directly installable plugins such as `hol-guard`. Use `npx @agentskill.sh/cli setup` to get all skills.
 
 </details>