diff --git a/src/async_runner.rs b/src/async_runner.rs
index 09b2278..5ea35a8 100644
--- a/src/async_runner.rs
+++ b/src/async_runner.rs
@@ -1,6 +1,6 @@
 use crate::job::Job;
 use log::{debug, error, info};
-use rhai::Engine;
+use rhai::{Engine, packages::Package};
 use std::collections::HashMap;
 use std::sync::Arc;
 use std::time::Duration;
@@ -167,7 +167,7 @@ impl Runner for AsyncRunner {
 
         // Spawn the job execution task
         let job_handle = tokio::spawn(async move {
-            // Create a new engine instance for this job
+            // Create a new engine instance (cheap with factory pattern)
             let mut engine = engine_factory();
             let mut db_config = rhai::Map::new();
             db_config.insert("DB_PATH".into(), db_path_clone.into());
@@ -252,7 +252,7 @@ pub fn spawn_async_runner<F>(
     engine_factory: F,
 ) -> JoinHandle<Result<(), Box<dyn std::error::Error + Send + Sync>>> 
 where
-    F: Fn() -> Engine + Send + Sync + 'static,
+    F: Fn() -> Engine + Send + Sync + 'static, 
 {
     use std::sync::Arc;
     
diff --git a/src/script_mode.rs b/src/script_mode.rs
index ff390f1..076c172 100644
--- a/src/script_mode.rs
+++ b/src/script_mode.rs
@@ -15,7 +15,7 @@ pub async fn execute_script_mode<F>(
     redis_url: String,
     job_timeout: Duration,
     engine_factory: F,
-) -> Result<String, Box<dyn std::error::Error + Send + Sync>> 
+) -> Result<String, Box<dyn std::error::Error + Send + Sync>>
 where
     F: Fn() -> rhai::Engine + Send + Sync + 'static,
 {
diff --git a/src/sync_runner.rs b/src/sync_runner.rs
index 885f56c..214f45f 100644
--- a/src/sync_runner.rs
+++ b/src/sync_runner.rs
@@ -1,9 +1,8 @@
 use crate::job::Job;
-use log::{debug, error, info};
-use rhai::{Dynamic, Engine};
-use std::sync::Arc;
-
 use crate::runner_trait::Runner;
+use log::{debug, error, info};
+use rhai::{Engine, Dynamic};
+use std::sync::Arc;
 
 /// Configuration for sync runner instances
 #[derive(Debug, Clone)]
@@ -73,7 +72,7 @@ impl Runner for SyncRunner {
         debug!("Sync Runner '{}', Job {}: Processing started.", runner_id, job_id);
         info!("Sync Runner '{}' processing job_id: {}. Script: {:.50}...", job.context_id, job_id, job.payload);
         
-        // Create a new engine instance for this job execution
+        // Create a new engine instance (cheap with factory pattern)
         let mut engine = (self.engine_factory)();
         
         // Execute the script