diff --git a/packages/coding-agent/src/eval/js/shared/rewrite-imports.ts b/packages/coding-agent/src/eval/js/shared/rewrite-imports.ts
index f4b592370..9caca3c67 100644
--- a/packages/coding-agent/src/eval/js/shared/rewrite-imports.ts
+++ b/packages/coding-agent/src/eval/js/shared/rewrite-imports.ts
@@ -187,10 +187,7 @@ function returnFinalExpression(code: string): { source: string; returned: boolea
 	const suffix = code.slice(expression.end);
 	const semicolonMatch = statement.match(/;\s*$/);
 	const trimmedStatement = semicolonMatch ? statement.slice(0, semicolonMatch.index) : statement;
-	const needsAwait =
-		expression.expression?.type === "AwaitExpression" || expression.expression?.type === "CallExpression";
-	const displayExpression = needsAwait ? `await (${trimmedStatement})` : trimmedStatement;
-	return { source: `${prefix}__omp_display__(${displayExpression});${suffix}`, returned: true };
+	return { source: `${prefix}globalThis.__omp_final_expr__ = (${trimmedStatement});${suffix}`, returned: true };
 }
 
 /**
diff --git a/packages/coding-agent/src/eval/js/shared/runtime.ts b/packages/coding-agent/src/eval/js/shared/runtime.ts
index b1ba2278d..8f3a25d75 100644
--- a/packages/coding-agent/src/eval/js/shared/runtime.ts
+++ b/packages/coding-agent/src/eval/js/shared/runtime.ts
@@ -82,9 +82,16 @@ export class JsRuntime {
 	}
 
 	async run(code: string, filename?: string): Promise<unknown> {
+		Reflect.deleteProperty(globalThis, "__omp_final_expr__");
 		const wrapped = wrapCode(code);
 		const value = indirectEval(wrapped.source, filename);
-		return await awaitMaybePromise(value);
+		const awaited = await awaitMaybePromise(value);
+		if (Reflect.has(globalThis, "__omp_final_expr__")) {
+			const finalValue = (globalThis as { __omp_final_expr__?: unknown }).__omp_final_expr__;
+			Reflect.deleteProperty(globalThis, "__omp_final_expr__");
+			return await awaitMaybePromise(finalValue);
+		}
+		return awaited;
 	}
 
 	displayValue(value: unknown): void {
diff --git a/packages/coding-agent/test/core/js-executor.test.ts b/packages/coding-agent/test/core/js-executor.test.ts
index f10aae61f..8333f432d 100644
--- a/packages/coding-agent/test/core/js-executor.test.ts
+++ b/packages/coding-agent/test/core/js-executor.test.ts
@@ -281,6 +281,17 @@ describe("executeJs", () => {
 		expect(result.output.trim()).toBe('{\n  "name": "demo",\n  "enabled": true\n}');
 	});
 
+	it("awaits identifier promise final expressions before displaying", async () => {
+		const result = await executeJs("const pending = read('config.json'); pending;", {
+			sessionId,
+			session,
+			sessionFile,
+		});
+
+		expect(result.exitCode).toBe(0);
+		expect(result.output.trim()).toBe('{\n  "name": "demo",\n  "enabled": true\n}');
+	});
+
 	it("auto-displays returned objects as structured output", async () => {
 		const result = await executeJs("return { answer: 42, nested: { ok: true } };", {
 			sessionId,