diff --git a/loop/webui/package.json b/loop/webui/package.json
new file mode 100644
index 0000000..06cc3c0
--- /dev/null
+++ b/loop/webui/package.json
@@ -0,0 +1,35 @@
+{
+  "name": "webui",
+  "version": "1.0.0",
+  "description": "Web UI for CodingAgent.",
+  "main": "dist/index.js",
+  "scripts": {
+    "check": "tsc --noEmit",
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "build:tailwind": "npx postcss ./src/input.css -o ./src/tailwind.css",
+    "build:tailwind:watch": "npx postcss ./src/input.css -o ./src/tailwind.css --watch"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "devDependencies": {
+    "@types/marked": "^5.0.2",
+    "@types/node": "^22.13.14",
+    "autoprefixer": "^10.4.21",
+    "esbuild": "^0.25.1",
+    "postcss": "^8.5.3",
+    "postcss-cli": "^11.0.1",
+    "tailwindcss": "^3.4.1",
+    "typescript": "^5.8.2"
+  },
+  "dependencies": {
+    "@xterm/addon-fit": "^0.10.0",
+    "@xterm/xterm": "^5.5.0",
+    "diff2html": "3.4.51",
+    "lit-html": "^3.2.1",
+    "marked": "^15.0.7",
+    "vega": "^5.33.0",
+    "vega-embed": "^6.29.0",
+    "vega-lite": "^5.23.0"
+  }
+}