Surface CLI task intake failures in chat task creation

packages/server/src/tasks/task-chat-service.ts

@@ -53,7 +53,7 @@ export async function runTaskIntake(
 		json: true,
 	});
 	if (result.status !== "succeeded") {
-		throw new Error(result.error ?? "Task creation failed");
+		throw new Error(readCliFailureMessage(result, "Task creation failed"));
 	}
 	return parseTaskIntakeOutput(result.commandResult?.stdout ?? "");
 }
@@ -73,7 +73,9 @@ export async function runTaskRequirementIntake(
 		json: true,
 	});
 	if (result.status !== "succeeded") {
-		throw new Error(result.error ?? "Task requirement intake failed");
+		throw new Error(
+			readCliFailureMessage(result, "Task requirement intake failed"),
+		);
 	}
 	return parseTaskRequirementOutput(result.commandResult?.stdout ?? "");
 }
@@ -222,6 +224,16 @@ function readErrorMessage(record: Record<string, unknown>): string {
 		: "unknown legacy Linear failure";
 }
 
+function readCliFailureMessage(
+	result: Awaited<ReturnType<CliExecutor["execute"]>>,
+	fallback: string,
+): string {
+	const output = [result.commandResult?.stderr, result.commandResult?.stdout]
+		.map((value) => value?.trim())
+		.find((value) => value !== undefined && value.length > 0);
+	return result.error ?? output ?? fallback;
+}
+
 async function settle<T>(
 	run: () => Promise<T>,
 ): Promise<{ ok: true; value: T } | { ok: false; error: string }> {

packages/server/tests/task-chat-service-failure.test.ts

@@ -0,0 +1,28 @@
+import { describe, expect, it } from "bun:test";
+import { runTaskRequirementIntake } from "../src/tasks/task-chat-service";
+import type { CliExecutor } from "../src/types/app.types";
+
+describe("task chat service CLI failures", () => {
+	it("surfaces stderr from failed requirement intake commands", async () => {
+		const cliExecutor: CliExecutor = {
+			execute: async (request) => ({
+				status: "failed",
+				request,
+				commandResult: {
+					code: 1,
+					stdout: "",
+					stderr: "codex failed with exit code 1\n",
+				},
+			}),
+			getHistory: () => [],
+		};
+
+		await expect(
+			runTaskRequirementIntake(cliExecutor, {
+				request: "Build the dashboard",
+				projectId: "default",
+				answers: [],
+			}),
+		).rejects.toThrow("codex failed with exit code 1");
+	});
+});