diff --git a/eslint.config.mjs b/eslint.config.mjs
index 151a3817..1573ebc1 100644
--- a/eslint.config.mjs
+++ b/eslint.config.mjs
@@ -24,6 +24,7 @@ export default tseslint.config(
     'examples/realtime-demo/**',
     'examples/nextjs/**',
     'integration-tests//**',
+    'tsc-multi.json',
   ]),
   eslint.configs.recommended,
   tseslint.configs.recommended,
diff --git a/packages/agents-core/src/shims/shims-node.ts b/packages/agents-core/src/shims/shims-node.ts
index ec0608bf..5f029835 100644
--- a/packages/agents-core/src/shims/shims-node.ts
+++ b/packages/agents-core/src/shims/shims-node.ts
@@ -14,11 +14,18 @@ declare global {
 // circular dependency resolution issues caused by other exports in '@openai/agents-core/_shims'
 export function loadEnv(): Record<string, string | undefined> {
   if (typeof process === 'undefined' || typeof process.env === 'undefined') {
-    if (
-      typeof import.meta === 'object' &&
-      typeof import.meta.env === 'object'
-    ) {
-      return import.meta.env as unknown as Record<string, string | undefined>;
+    // In CommonJS builds, import.meta is not available, so we return empty object
+    try {
+      // Use eval to avoid TypeScript compilation errors in CommonJS builds
+      const importMeta = (0, eval)('import.meta');
+      if (
+        typeof importMeta === 'object' &&
+        typeof importMeta.env === 'object'
+      ) {
+        return importMeta.env as unknown as Record<string, string | undefined>;
+      }
+    } catch {
+      // import.meta not available (CommonJS build)
     }
     return {};
   }
diff --git a/packages/agents-core/src/shims/shims-workerd.ts b/packages/agents-core/src/shims/shims-workerd.ts
index ffdb03e7..d5d888f9 100644
--- a/packages/agents-core/src/shims/shims-workerd.ts
+++ b/packages/agents-core/src/shims/shims-workerd.ts
@@ -15,11 +15,18 @@ declare global {
 // circular dependency resolution issues caused by other exports in '@openai/agents-core/_shims'
 export function loadEnv(): Record<string, string | undefined> {
   if (typeof process === 'undefined' || typeof process.env === 'undefined') {
-    if (
-      typeof import.meta === 'object' &&
-      typeof import.meta.env === 'object'
-    ) {
-      return import.meta.env as unknown as Record<string, string | undefined>;
+    // In CommonJS builds, import.meta is not available, so we return empty object
+    try {
+      // Use eval to avoid TypeScript compilation errors in CommonJS builds
+      const importMeta = (0, eval)('import.meta');
+      if (
+        typeof importMeta === 'object' &&
+        typeof importMeta.env === 'object'
+      ) {
+        return importMeta.env as unknown as Record<string, string | undefined>;
+      }
+    } catch {
+      // import.meta not available (CommonJS build)
     }
     return {};
   }
diff --git a/tsc-multi.json b/tsc-multi.json
index 104f0829..ddf444ca 100644
--- a/tsc-multi.json
+++ b/tsc-multi.json
@@ -1,6 +1,6 @@
 {
   "targets": [
-    { "extname": ".js", "module": "es2022", "moduleResolution": "node" },
+    { "extname": ".js", "module": "commonjs", "moduleResolution": "node" },
     { "extname": ".mjs", "module": "esnext" }
   ],
   "projects": [