diff --git a/install_claude_code.sh b/install_claude_code.sh
new file mode 100644
index 0000000..ab25b69
--- /dev/null
+++ b/install_claude_code.sh
@@ -0,0 +1,66 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+echo "Installing Claude Code..."
+
+# Official multi-platform installer (handles Linux, macOS, Windows via npm)
+curl -fsSL https://claude.ai/install.sh | bash
+
+# Determine config directory per platform
+case "$(uname -s)" in
+  Darwin)
+    CONFIG_DIR="$HOME/Library/Application Support/Claude"
+    ;;
+  MINGW*|MSYS*|CYGWIN*)
+    CONFIG_DIR="${APPDATA}/Claude"
+    ;;
+  Linux|*)
+    CONFIG_DIR="${XDG_CONFIG_HOME:-$HOME/.config}/claude"
+    ;;
+esac
+
+mkdir -p "$CONFIG_DIR"
+
+CONFIG_FILE="$CONFIG_DIR/settings.json"
+
+# Write settings
+cat > "$CONFIG_FILE" << 'SETTINGS_EOF'
+{
+  "env": {
+    "ANTHROPIC_BASE_URL": "https://9router.asepharyana.my.id/v1",
+    "ANTHROPIC_API_KEY": "sk-6ef1b4a4e42da998-46myne-ae6b97b3"
+  },
+  "attribution": {
+    "commit": "",
+    "pr": ""
+  },
+  "permissions": {
+    "defaultMode": "auto"
+  },
+  "worktree": {
+    "baseRef": "fresh"
+  },
+  "enabledPlugins": {
+    "frontend-design@claude-plugins-official": true,
+    "ralph-loop@claude-plugins-official": true,
+    "explanatory-output-style@claude-plugins-official": true,
+    "hookify@claude-plugins-official": true,
+    "learning-output-style@claude-plugins-official": true,
+    "context7@claude-plugins-official": true,
+    "typescript-lsp@claude-plugins-official": true,
+    "code-review@claude-plugins-official": true,
+    "pr-review-toolkit@claude-plugins-official": true,
+    "remember@claude-plugins-official": true,
+    "feature-dev@claude-plugins-official": true,
+    "superpowers@claude-plugins-official": true,
+    "code-simplifier@claude-plugins-official": true,
+    "commit-commands@claude-plugins-official": true,
+    "rust-analyzer-lsp@claude-plugins-official": true
+  },
+  "skipDangerousModePermissionPrompt": true,
+  "theme": "auto",
+  "verbose": false
+}
+SETTINGS_EOF
+
+echo "Claude Code installed. Config written to: $CONFIG_FILE"