diff --git a/app/components/chat/ToolCall.tsx b/app/components/chat/ToolCall.tsx
index 711f5edff..0cf9a7537 100644
--- a/app/components/chat/ToolCall.tsx
+++ b/app/components/chat/ToolCall.tsx
@@ -416,8 +416,12 @@ function toolTitle(invocation: ConvexToolInvocation): React.ReactNode {
           </div>
         );
       } else if (invocation.result?.startsWith('Error:')) {
-        // This is a hack, but `npx convex dev` prints this out when the typecheck fails
-        if (invocation.result.includes('To ignore failing typecheck')) {
+        if (
+          // This is a hack, but `npx convex dev` prints this out when the typecheck fails
+          invocation.result.includes('To ignore failing typecheck') ||
+          // this is a bigger hack! TypeScript fails with error codes like TS
+          invocation.result.includes('Error TS')
+        ) {
           return (
             <div className="flex items-center gap-2">
               <img className="w-4 h-4 mr-1" height="16" width="16" src="/icons/TypeScript.svg" alt="TypeScript" />
diff --git a/app/lib/runtime/action-runner.ts b/app/lib/runtime/action-runner.ts
index c6dff0ab4..2351bf6ae 100644
--- a/app/lib/runtime/action-runner.ts
+++ b/app/lib/runtime/action-runner.ts
@@ -372,7 +372,10 @@ export class ActionRunner {
         case 'deploy': {
           const container = await this.#webcontainer;
           await waitForContainerBootState(ContainerBootState.READY);
-          const convexProc = await container.spawn('npx', ['convex', 'dev', '--once']);
+          const convexProc = await container.spawn('sh', [
+            '-c',
+            'convex dev --once && tsc --noEmit -p tsconfig.app.json',
+          ]);
           action.abortSignal.addEventListener('abort', () => {
             convexProc.kill();
           });
diff --git a/app/lib/stores/startup/useContainerSetup.ts b/app/lib/stores/startup/useContainerSetup.ts
index 68fca51ab..1b963cd89 100644
--- a/app/lib/stores/startup/useContainerSetup.ts
+++ b/app/lib/stores/startup/useContainerSetup.ts
@@ -12,7 +12,7 @@ import { toast } from 'sonner';
 import { waitForConvexProjectConnection, type ConvexProject } from '~/lib/stores/convexProject';
 import type { WebContainer } from '@webcontainer/api';
 
-const TEMPLATE_URL = '/template-snapshot-ba3672ee.bin';
+const TEMPLATE_URL = '/template-snapshot-cb4ccf96.bin';
 
 export function useNewChatContainerSetup() {
   useEffect(() => {
diff --git a/public/template-snapshot-cb4ccf96.bin b/public/template-snapshot-cb4ccf96.bin
new file mode 100644
index 000000000..d031fc442
Binary files /dev/null and b/public/template-snapshot-cb4ccf96.bin differ
diff --git a/template/tsconfig.app.json b/template/tsconfig.app.json
index 8267e1fb8..1055250d5 100644
--- a/template/tsconfig.app.json
+++ b/template/tsconfig.app.json
@@ -17,8 +17,6 @@
 
     /* Linting */
     "strict": true,
-    "noUnusedLocals": true,
-    "noUnusedParameters": true,
     "noFallthroughCasesInSwitch": true,
     "noUncheckedSideEffectImports": true,
 
diff --git a/template/tsconfig.node.json b/template/tsconfig.node.json
index db0becc8b..85b71dc03 100644
--- a/template/tsconfig.node.json
+++ b/template/tsconfig.node.json
@@ -15,8 +15,6 @@
 
     /* Linting */
     "strict": true,
-    "noUnusedLocals": true,
-    "noUnusedParameters": true,
     "noFallthroughCasesInSwitch": true,
     "noUncheckedSideEffectImports": true
   },