diff --git a/internal/exec/executor_test.go b/internal/exec/executor_test.go
index ee6cf2c..0b9a25e 100644
--- a/internal/exec/executor_test.go
+++ b/internal/exec/executor_test.go
@@ -28,8 +28,10 @@ func fakeClaudePath(t *testing.T, output string, exitCode int) string {
 }
 
 func TestExecutorParsesValidResult(t *testing.T) {
-	validJSON := `{"status":"pass","phase":"red","skill":"tdd","file_path":"/tmp/x_test.go","runner_output":"FAIL","verified":true,"model_used":"self","message":"ok"}`
-	claude := fakeClaudePath(t, validJSON, 0)
+	// Fake claude emits the --output-format json envelope that the real CLI produces.
+	// The executor extracts the result from the "structured_output" field.
+	envelope := `{"type":"result","subtype":"success","is_error":false,"structured_output":{"status":"pass","phase":"red","skill":"tdd","file_path":"/tmp/x_test.go","runner_output":"FAIL","verified":true,"model_used":"self","message":"ok"}}`
+	claude := fakeClaudePath(t, envelope, 0)
 
 	ex := iexec.New(iexec.Config{
 		ClaudeBinary: claude,