diff --git a/package-lock.json b/package-lock.json
index 46b3bb8b..dc5c3477 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -100,6 +100,7 @@
                 "husky": "^9.1.7",
                 "jsdom": "^27.4.0",
                 "lint-staged": "^16.2.7",
+                "postcss": "^8.5.6",
                 "shx": "^0.4.0",
                 "tailwindcss": "^4",
                 "typescript": "^5",
diff --git a/package.json b/package.json
index c987c36e..7865c467 100644
--- a/package.json
+++ b/package.json
@@ -135,6 +135,7 @@
         "husky": "^9.1.7",
         "jsdom": "^27.4.0",
         "lint-staged": "^16.2.7",
+        "postcss": "^8.5.6",
         "shx": "^0.4.0",
         "tailwindcss": "^4",
         "typescript": "^5",
diff --git a/packages/mcp-server/scripts/build-shell.mjs b/packages/mcp-server/scripts/build-shell.mjs
index 64d0c3bf..562c3133 100644
--- a/packages/mcp-server/scripts/build-shell.mjs
+++ b/packages/mcp-server/scripts/build-shell.mjs
@@ -35,7 +35,6 @@ const result = await build({
     target: "es2022",
     platform: "browser",
     jsx: "automatic",
-    legalComments: "none",
     metafile: true,
     absWorkingDir: root,
     alias: {
diff --git a/packages/mcp-server/shell/shell.css b/packages/mcp-server/shell/shell.css
index 70ac7dd1..8eec509e 100644
--- a/packages/mcp-server/shell/shell.css
+++ b/packages/mcp-server/shell/shell.css
@@ -8,6 +8,7 @@
 @source "../../../components/canvas";
 @source "../../../components/ui";
 @source "../../../components/ai-elements";
+@source "../../../components/workspace/app-toaster.tsx";
 
 /* System fonts stand in for the web fonts the Next.js layout loads */
 :root {
diff --git a/packages/mcp-server/shell/tsconfig.json b/packages/mcp-server/shell/tsconfig.json
index dcf2cc39..91aae0f6 100644
--- a/packages/mcp-server/shell/tsconfig.json
+++ b/packages/mcp-server/shell/tsconfig.json
@@ -5,5 +5,6 @@
         "incremental": false,
         "plugins": []
     },
-    "include": ["./**/*.ts", "./**/*.tsx"]
+    "include": ["./**/*.ts", "./**/*.tsx"],
+    "exclude": ["node_modules"]
 }