diff --git a/pkg/desktop/raw_client.go b/pkg/desktop/raw_client.go
index 91b31decf..f0d05ee6a 100644
--- a/pkg/desktop/raw_client.go
+++ b/pkg/desktop/raw_client.go
@@ -134,11 +134,6 @@ func (c *RawClient) Post(ctx context.Context, endpoint string, v any, result any
 	}
 	defer response.Body.Close()
 
-	if result == nil {
-		_, err := io.Copy(io.Discard, response.Body)
-		return err
-	}
-
 	buf, err := io.ReadAll(response.Body)
 	if err != nil {
 		return err
@@ -156,6 +151,10 @@ func (c *RawClient) Post(ctx context.Context, endpoint string, v any, result any
 		return fmt.Errorf("HTTP %d: %s", response.StatusCode, string(buf))
 	}
 
+	if result == nil {
+		return nil
+	}
+
 	if err := json.Unmarshal(buf, &result); err != nil {
 		return err
 	}
@@ -179,6 +178,22 @@ func (c *RawClient) Delete(ctx context.Context, endpoint string) error {
 	}
 	defer response.Body.Close()
 
-	_, err = io.Copy(io.Discard, response.Body)
-	return err
+	buf, err := io.ReadAll(response.Body)
+	if err != nil {
+		return err
+	}
+
+	// Check HTTP status code - return error for non-2xx responses
+	if response.StatusCode < 200 || response.StatusCode >= 300 {
+		// Try to parse error message from response
+		var errorMsg struct {
+			Message string `json:"message"`
+		}
+		if json.Unmarshal(buf, &errorMsg) == nil && errorMsg.Message != "" {
+			return fmt.Errorf("HTTP %d: %s", response.StatusCode, errorMsg.Message)
+		}
+		return fmt.Errorf("HTTP %d: %s", response.StatusCode, string(buf))
+	}
+
+	return nil
 }
diff --git a/pkg/desktop/raw_client_test.go b/pkg/desktop/raw_client_test.go
new file mode 100644
index 000000000..724b3b15b
--- /dev/null
+++ b/pkg/desktop/raw_client_test.go
@@ -0,0 +1,243 @@
+package desktop
+
+import (
+	"context"
+	"encoding/json"
+	"net"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+)
+
+// newTestClient creates a RawClient that connects to an httptest.Server
+func newTestClient(t *testing.T, handler http.Handler) *RawClient {
+	t.Helper()
+	server := httptest.NewServer(handler)
+	t.Cleanup(server.Close)
+
+	client := &RawClient{
+		client: func() *http.Client {
+			return &http.Client{
+				Transport: &http.Transport{
+					DialContext: func(_ context.Context, _, _ string) (net.Conn, error) {
+						var d net.Dialer
+						return d.DialContext(context.Background(), "tcp", server.Listener.Addr().String())
+					},
+				},
+			}
+		},
+		timeout: 10 * 1e9, // 10s
+	}
+	return client
+}
+
+func writeJSON(t *testing.T, w http.ResponseWriter, v any) {
+	t.Helper()
+	if err := json.NewEncoder(w).Encode(v); err != nil {
+		t.Fatalf("failed to encode JSON response: %v", err)
+	}
+}
+
+func TestGet_Success(t *testing.T) {
+	handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != http.MethodGet {
+			t.Errorf("expected GET, got %s", r.Method)
+		}
+		w.WriteHeader(http.StatusOK)
+		writeJSON(t, w, map[string]string{"key": "value"})
+	})
+
+	client := newTestClient(t, handler)
+
+	var result map[string]string
+	err := client.Get(context.Background(), "/test", &result)
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if result["key"] != "value" {
+		t.Errorf("expected key=value, got key=%s", result["key"])
+	}
+}
+
+func TestGet_ErrorStatus(t *testing.T) {
+	handler := http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+		w.WriteHeader(http.StatusInternalServerError)
+		writeJSON(t, w, map[string]string{"message": "something broke"})
+	})
+
+	client := newTestClient(t, handler)
+
+	var result map[string]string
+	err := client.Get(context.Background(), "/test", &result)
+	if err == nil {
+		t.Fatal("expected error, got nil")
+	}
+	expected := "HTTP 500: something broke"
+	if err.Error() != expected {
+		t.Errorf("expected %q, got %q", expected, err.Error())
+	}
+}
+
+func TestGet_ErrorStatusPlainBody(t *testing.T) {
+	handler := http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+		w.WriteHeader(http.StatusNotFound)
+		if _, err := w.Write([]byte("404 Not Found")); err != nil {
+			t.Fatalf("failed to write response: %v", err)
+		}
+	})
+
+	client := newTestClient(t, handler)
+
+	var result map[string]string
+	err := client.Get(context.Background(), "/test", &result)
+	if err == nil {
+		t.Fatal("expected error, got nil")
+	}
+	expected := "HTTP 404: 404 Not Found"
+	if err.Error() != expected {
+		t.Errorf("expected %q, got %q", expected, err.Error())
+	}
+}
+
+func TestPost_Success(t *testing.T) {
+	handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != http.MethodPost {
+			t.Errorf("expected POST, got %s", r.Method)
+		}
+		w.WriteHeader(http.StatusOK)
+		writeJSON(t, w, map[string]string{"status": "ok"})
+	})
+
+	client := newTestClient(t, handler)
+
+	var result map[string]string
+	err := client.Post(context.Background(), "/test", map[string]string{"input": "data"}, &result)
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if result["status"] != "ok" {
+		t.Errorf("expected status=ok, got status=%s", result["status"])
+	}
+}
+
+func TestPost_ErrorStatus(t *testing.T) {
+	handler := http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+		w.WriteHeader(http.StatusBadRequest)
+		writeJSON(t, w, map[string]string{"message": "bad input"})
+	})
+
+	client := newTestClient(t, handler)
+
+	var result map[string]string
+	err := client.Post(context.Background(), "/test", map[string]string{"input": "data"}, &result)
+	if err == nil {
+		t.Fatal("expected error, got nil")
+	}
+	expected := "HTTP 400: bad input"
+	if err.Error() != expected {
+		t.Errorf("expected %q, got %q", expected, err.Error())
+	}
+}
+
+func TestPost_NilResult_Success(t *testing.T) {
+	handler := http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+		w.WriteHeader(http.StatusOK)
+	})
+
+	client := newTestClient(t, handler)
+
+	err := client.Post(context.Background(), "/test", nil, nil)
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+}
+
+func TestPost_NilResult_ErrorStatus(t *testing.T) {
+	handler := http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+		w.WriteHeader(http.StatusInternalServerError)
+		writeJSON(t, w, map[string]string{"message": "server error"})
+	})
+
+	client := newTestClient(t, handler)
+
+	err := client.Post(context.Background(), "/test", nil, nil)
+	if err == nil {
+		t.Fatal("expected error, got nil")
+	}
+	expected := "HTTP 500: server error"
+	if err.Error() != expected {
+		t.Errorf("expected %q, got %q", expected, err.Error())
+	}
+}
+
+func TestDelete_Success(t *testing.T) {
+	handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != http.MethodDelete {
+			t.Errorf("expected DELETE, got %s", r.Method)
+		}
+		if r.URL.Path != "/apps/test-app" {
+			t.Errorf("expected path /apps/test-app, got %s", r.URL.Path)
+		}
+		w.WriteHeader(http.StatusOK)
+	})
+
+	client := newTestClient(t, handler)
+
+	err := client.Delete(context.Background(), "/apps/test-app")
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+}
+
+func TestDelete_204NoContent(t *testing.T) {
+	handler := http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+		w.WriteHeader(http.StatusNoContent)
+	})
+
+	client := newTestClient(t, handler)
+
+	err := client.Delete(context.Background(), "/apps/test-app")
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+}
+
+func TestDelete_ErrorStatusJSON(t *testing.T) {
+	handler := http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+		w.WriteHeader(http.StatusInternalServerError)
+		writeJSON(t, w, map[string]string{
+			"message": "provider `cloudflare-autorag`: could not revoke token",
+		})
+	})
+
+	client := newTestClient(t, handler)
+
+	err := client.Delete(context.Background(), "/apps/cloudflare-autorag")
+	if err == nil {
+		t.Fatal("expected error, got nil")
+	}
+	expected := "HTTP 500: provider `cloudflare-autorag`: could not revoke token"
+	if err.Error() != expected {
+		t.Errorf("expected %q, got %q", expected, err.Error())
+	}
+}
+
+func TestDelete_ErrorStatusPlainBody(t *testing.T) {
+	handler := http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+		w.WriteHeader(http.StatusNotFound)
+		if _, err := w.Write([]byte("404 Not Found")); err != nil {
+			t.Fatalf("failed to write response: %v", err)
+		}
+	})
+
+	client := newTestClient(t, handler)
+
+	err := client.Delete(context.Background(), "/apps/nonexistent")
+	if err == nil {
+		t.Fatal("expected error, got nil")
+	}
+	expected := "HTTP 404: 404 Not Found"
+	if err.Error() != expected {
+		t.Errorf("expected %q, got %q", expected, err.Error())
+	}
+}