1 files changed, 59 insertions, 0 deletions
diff --git a/internal/executor/channel_test.go b/internal/executor/channel_test.go
index 23f0661..a2e7c70 100644
--- a/internal/executor/channel_test.go
+++ b/internal/executor/channel_test.go
@@ -338,6 +338,65 @@ func TestStoreChannel_SpawnSubtask_DependsOnDefaultsEmpty(t *testing.T) {
 	}
 }
 
+// TestStoreChannel_SpawnSubtask_SetsAcceptanceCriteria proves a caller can
+// state what a spawned subtask's work must satisfy.
+func TestStoreChannel_SpawnSubtask_SetsAcceptanceCriteria(t *testing.T) {
+	store := &fakeChannelStore{}
+	ch := newStoreChannel(store, "parent-task-1")
+
+	id, err := ch.SpawnSubtask(context.Background(), agentchannel.SubtaskSpec{
+		Name:               "step 1",
+		Instructions:       "do the thing",
+		AcceptanceCriteria: []string{"tests pass", "no new lint warnings"},
+	})
+	if err != nil {
+		t.Fatalf("spawn subtask: %v", err)
+	}
+
+	var got *task.Task
+	for _, ct := range store.createdTasks {
+		if ct.ID == id {
+			got = ct
+		}
+	}
+	if got == nil {
+		t.Fatal("subtask not found in store.createdTasks")
+	}
+	if len(got.AcceptanceCriteria) != 2 || got.AcceptanceCriteria[0] != "tests pass" || got.AcceptanceCriteria[1] != "no new lint warnings" {
+		t.Errorf("AcceptanceCriteria: want [tests pass, no new lint warnings], got %+v", got.AcceptanceCriteria)
+	}
+}
+
+// TestStoreChannel_SpawnSubtask_AcceptanceCriteriaDefaultsEmpty proves the
+// backward-compatible default: a caller that never sets AcceptanceCriteria
+// (every pre-existing caller) gets a child task with none, exactly as before
+// this change.
+func TestStoreChannel_SpawnSubtask_AcceptanceCriteriaDefaultsEmpty(t *testing.T) {
+	store := &fakeChannelStore{}
+	ch := newStoreChannel(store, "parent-task-1")
+
+	id, err := ch.SpawnSubtask(context.Background(), agentchannel.SubtaskSpec{
+		Name:         "solo step",
+		Instructions: "do the thing",
+	})
+	if err != nil {
+		t.Fatalf("spawn subtask: %v", err)
+	}
+
+	var got *task.Task
+	for _, ct := range store.createdTasks {
+		if ct.ID == id {
+			got = ct
+		}
+	}
+	if got == nil {
+		t.Fatal("subtask not found in store.createdTasks")
+	}
+	if len(got.AcceptanceCriteria) != 0 {
+		t.Errorf("expected empty AcceptanceCriteria by default, got %v", got.AcceptanceCriteria)
+	}
+}
+
 func TestStoreChannel_RecordProgress_EmitsAgentMessage(t *testing.T) {
 	store := &fakeChannelStore{}
 	ch := newStoreChannel(store, "task-1")