diff --git a/build/gulpfile.ts b/build/gulpfile.ts
index a3e6a82d572..b7bbc216915 100644
--- a/build/gulpfile.ts
+++ b/build/gulpfile.ts
@@ -37,7 +37,7 @@ const compileClientTask = task.define('compile-client', task.series(util.rimraf(
 gulp.task(compileClientTask);
 
 const watchClientTask = useEsbuildTranspile
-	? task.define('watch-client', task.parallel(compilation.watchTask('out', false, 'src', { noEmit: true }), compilation.watchApiProposalNamesTask, compilation.watchExtensionPointNamesTask, compilation.watchCodiconsTask))
+	? task.define('watch-client', task.parallel(compilation.watchTypeCheckTask('src'), compilation.watchApiProposalNamesTask, compilation.watchExtensionPointNamesTask, compilation.watchCodiconsTask))
 	: task.define('watch-client', task.series(util.rimraf('out'), task.parallel(compilation.watchTask('out', false), compilation.watchApiProposalNamesTask, compilation.watchExtensionPointNamesTask, compilation.watchCodiconsTask)));
 gulp.task(watchClientTask);
 
diff --git a/build/lib/compilation.ts b/build/lib/compilation.ts
index 047e83eb7ff..6e64fd62fc3 100644
--- a/build/lib/compilation.ts
+++ b/build/lib/compilation.ts
@@ -23,6 +23,7 @@ import watch from './watch/index.ts';
 import bom from 'gulp-bom';
 import * as tsb from './tsb/index.ts';
 import sourcemaps from 'gulp-sourcemaps';
+import { createTsgoStream } from './tsgo.ts';
 
 
 import { extractExtensionPointNamesFromFile } from './extractExtensionPoints.ts';
@@ -190,6 +191,23 @@ export function watchTask(out: string, build: boolean, srcPath: string = 'src',
 	return task;
 }
 
+export function watchTypeCheckTask(src: string): task.StreamTask {
+	const theTask = () => {
+		const projectPath = path.join(import.meta.dirname, '../../', src, 'tsconfig.json');
+		const watchInput = watch(`${src}/**`, { base: src, readDelay: 200 });
+		const tsgoStream = watchInput.pipe(util.debounce(() => {
+			const stream = createTsgoStream(projectPath, { taskName: 'watch-client-noEmit', noEmit: true });
+			const result = es.through();
+			stream.on('end', () => result.emit('end'));
+			stream.on('error', () => result.emit('end'));
+			return result;
+		}));
+		return tsgoStream;
+	};
+	theTask.taskName = `watch-typecheck-${path.basename(src)}`;
+	return theTask;
+}
+
 const REPO_SRC_FOLDER = path.join(import.meta.dirname, '../../src');
 
 class MonacoGenerator {
diff --git a/build/lib/tsgo.ts b/build/lib/tsgo.ts
index 36d925d4313..57272e62539 100644
--- a/build/lib/tsgo.ts
+++ b/build/lib/tsgo.ts
@@ -18,11 +18,9 @@ export function spawnTsgo(projectPath: string, config: { taskName: string; noEmi
 	function runReporter(output: string) {
 		const lines = (output || '').split('\n');
 		const errorLines = lines.filter(line => /error \w+:/.test(line));
-		if (errorLines.length > 0) {
-			fancyLog(`Finished ${ansiColors.green(config.taskName)} ${projectPath} with ${errorLines.length} errors.`);
-			for (const line of errorLines) {
-				fancyLog(line);
-			}
+		fancyLog(`Finished ${ansiColors.green(config.taskName)} ${projectPath} with ${errorLines.length} errors.`);
+		for (const line of errorLines) {
+			fancyLog(line);
 		}
 	}
 
diff --git a/src/tsconfig.json b/src/tsconfig.json
index bfda0ebafc1..815c7bfe183 100644
--- a/src/tsconfig.json
+++ b/src/tsconfig.json
@@ -8,6 +8,7 @@
 		"allowJs": true,
 		"resolveJsonModule": true,
 		"isolatedModules": false,
+		"skipLibCheck": true,
 		"outDir": "../out/vs",
 		"types": [
 			"@webgpu/types",