diff --git a/crates/pinakes-ui/src/plugin_ui/actions.rs b/crates/pinakes-ui/src/plugin_ui/actions.rs
index 6da8aa2..f123359 100644
--- a/crates/pinakes-ui/src/plugin_ui/actions.rs
+++ b/crates/pinakes-ui/src/plugin_ui/actions.rs
@@ -82,10 +82,11 @@ async fn execute_inline_action(
       .iter()
       .map(|(k, v)| (k.clone(), v.clone()))
       .collect();
+    // action.params take precedence; form_data only fills in missing keys
     if let Some(fd) = form_data {
       if let Some(obj) = fd.as_object() {
         for (k, v) in obj {
-          merged.insert(k.clone(), v.clone());
+          merged.entry(k.clone()).or_insert_with(|| v.clone());
         }
       }
     }
@@ -115,7 +116,7 @@ async fn execute_inline_action(
   }
 
   let value: serde_json::Value =
-    response.json().await.map_err(|e| e.to_string())?;
+    response.json().await.unwrap_or(serde_json::Value::Null);
 
   if let Some(route) = &action.navigate_to {
     return Ok(ActionResult::Navigate(route.clone()));
@@ -126,6 +127,8 @@ async fn execute_inline_action(
 
 #[cfg(test)]
 mod tests {
+  use pinakes_plugin_api::ActionRef;
+
   use super::*;
 
   #[test]
@@ -135,4 +138,50 @@ mod tests {
     let _ = ActionResult::Error("error".to_string());
     let _ = ActionResult::Navigate("/page".to_string());
   }
+
+  #[test]
+  fn test_action_result_clone() {
+    let original = ActionResult::Success(serde_json::json!({"key": "value"}));
+    let cloned = original.clone();
+    if let (ActionResult::Success(a), ActionResult::Success(b)) =
+      (original, cloned)
+    {
+      assert_eq!(a, b);
+    } else {
+      panic!("clone produced wrong variant");
+    }
+  }
+
+  #[test]
+  fn test_action_result_error_clone() {
+    let original = ActionResult::Error("something went wrong".to_string());
+    let cloned = original.clone();
+    if let (ActionResult::Error(a), ActionResult::Error(b)) = (original, cloned)
+    {
+      assert_eq!(a, b);
+    } else {
+      panic!("clone produced wrong variant");
+    }
+  }
+
+  #[test]
+  fn test_action_result_navigate_clone() {
+    let original = ActionResult::Navigate("/dashboard".to_string());
+    let cloned = original.clone();
+    if let (ActionResult::Navigate(a), ActionResult::Navigate(b)) =
+      (original, cloned)
+    {
+      assert_eq!(a, b);
+    } else {
+      panic!("clone produced wrong variant");
+    }
+  }
+
+  #[tokio::test]
+  async fn test_named_action_ref_returns_none() {
+    let client = crate::client::ApiClient::default();
+    let action_ref = ActionRef::Name("my-action".to_string());
+    let result = execute_action(&client, &action_ref, None).await.unwrap();
+    assert!(matches!(result, ActionResult::None));
+  }
 }