diff --git a/install.sh b/install.sh
new file mode 100644
index 0000000..4a93457
--- /dev/null
+++ b/install.sh
@@ -0,0 +1,49 @@
+#!/usr/bin/env bash
+set -e
+
+PLUGIN_NAME="onyva-login"
+MARKETPLACE="onyva"
+VERSION="1.0.0"
+REPO="https://gitea.onyva.dev/Onyva/onyva-login-skill"
+INSTALL_DIR="$HOME/.claude/plugins/cache/$MARKETPLACE/$PLUGIN_NAME/$VERSION"
+PLUGINS_JSON="$HOME/.claude/plugins/installed_plugins.json"
+
+echo "Installing $PLUGIN_NAME..."
+
+# Download plugin files
+mkdir -p "$INSTALL_DIR/skills/$PLUGIN_NAME"
+curl -fsSL "$REPO/raw/branch/main/.claude-plugin/plugin.json" -o "$INSTALL_DIR/plugin.json"
+curl -fsSL "$REPO/raw/branch/main/skills/$PLUGIN_NAME/SKILL.md" -o "$INSTALL_DIR/skills/$PLUGIN_NAME/SKILL.md"
+curl -fsSL "$REPO/raw/branch/main/README.md" -o "$INSTALL_DIR/README.md"
+
+# Update installed_plugins.json
+PLUGIN_KEY="${PLUGIN_NAME}@${MARKETPLACE}"
+NOW=$(date -u +"%Y-%m-%dT%H:%M:%S.000Z")
+
+if [ ! -f "$PLUGINS_JSON" ]; then
+  echo '{"version":2,"plugins":{}}' > "$PLUGINS_JSON"
+fi
+
+# Add entry using python (available everywhere)
+python3 - <<EOF
+import json, sys
+
+path = "$PLUGINS_JSON"
+with open(path) as f:
+    data = json.load(f)
+
+data.setdefault("plugins", {})["$PLUGIN_KEY"] = [{
+    "scope": "user",
+    "installPath": "$INSTALL_DIR",
+    "version": "$VERSION",
+    "installedAt": "$NOW",
+    "lastUpdated": "$NOW"
+}]
+
+with open(path, "w") as f:
+    json.dump(data, f, indent=2)
+
+print("Updated installed_plugins.json")
+EOF
+
+echo "✓ $PLUGIN_NAME installed. Restart Claude Code to use /onyva-login"
diff --git a/marketplace.json b/marketplace.json
index e56fde2..bb110fa 100644
--- a/marketplace.json
+++ b/marketplace.json
@@ -1,4 +1,5 @@
 {
+  "$schema": "https://anthropic.com/claude-code/marketplace.schema.json",
   "name": "onyva-marketplace",
   "description": "Interne Claude Code Skills fuer Onyva-Projekte",
   "owner": {
@@ -8,7 +9,15 @@
     {
       "name": "onyva-login",
       "description": "Integriert den zentralen Onyva Dev Login (OIDC/SSO) in ein bestehendes Projekt. Implementiert Authorization Code Flow mit PKCE, zentralem Logout und Rollenzugriff.",
-      "path": "."
+      "author": {
+        "name": "Onyva"
+      },
+      "source": {
+        "source": "git-subdir",
+        "url": "https://Ruben:67ba7a5b4c18311b4e16f28360f09fa934664af4@gitea.onyva.dev/Onyva/onyva-login-skill.git",
+        "path": ".",
+        "ref": "main"
+      }
     }
   ]
 }