diff --git a/envoyfilter/src/common_types.rs b/envoyfilter/src/common_types.rs
index 58621b81..d41023de 100644
--- a/envoyfilter/src/common_types.rs
+++ b/envoyfilter/src/common_types.rs
@@ -52,3 +52,20 @@ pub struct VectorPoint {
 pub struct CreateVectorStorePoints {
     pub points: Vec<VectorPoint>,
 }
+
+pub mod open_ai {
+    use serde::{Deserialize, Serialize};
+
+    #[derive(Debug, Clone, Serialize, Deserialize)]
+    pub struct ChatCompletions {
+        #[serde(default)]
+        pub model: String,
+        pub messages: Vec<Message>,
+    }
+
+    #[derive(Debug, Clone, Serialize, Deserialize)]
+    pub struct Message {
+        pub role: String,
+        pub content: String,
+    }
+}
diff --git a/envoyfilter/src/lib.rs b/envoyfilter/src/lib.rs
index e93863a7..d9c5aa33 100644
--- a/envoyfilter/src/lib.rs
+++ b/envoyfilter/src/lib.rs
@@ -15,7 +15,6 @@ use proxy_wasm::types::*;
 mod common_types;
 mod configuration;
 mod consts;
-mod llm_backend;
 mod stats;
 
 proxy_wasm::main! {{
@@ -81,7 +80,7 @@ impl HttpContext for StreamContext {
 
         // Deserialize body into spec.
         // Currently OpenAI API.
-        let mut deserialized_body: llm_backend::ChatCompletions =
+        let mut deserialized_body: common_types::open_ai::ChatCompletions =
             match self.get_http_request_body(0, body_size) {
                 Some(body_bytes) => match serde_json::from_slice(&body_bytes) {
                     Ok(deserialized) => deserialized,
@@ -262,7 +261,7 @@ impl FilterContext {
         }
     }
 
-    fn create_vector_store_points_worker(&self, body_size: usize) {
+    fn create_vector_store_points_handler(&self, body_size: usize) {
         info!("response received for CreateVectorStorePoints");
         if let Some(body) = self.get_http_call_response_body(0, body_size) {
             if !body.is_empty() {
@@ -292,7 +291,7 @@ impl Context for FilterContext {
                 self.embedding_request_handler(body_size, create_embedding_request, prompt_target)
             }
             common_types::MessageType::CreateVectorStorePoints(_) => {
-                self.create_vector_store_points_worker(body_size)
+                self.create_vector_store_points_handler(body_size)
             }
         }
     }
diff --git a/envoyfilter/src/llm_backend.rs b/envoyfilter/src/llm_backend.rs
deleted file mode 100644
index cfa5c867..00000000
--- a/envoyfilter/src/llm_backend.rs
+++ /dev/null
@@ -1,14 +0,0 @@
-use serde::{Deserialize, Serialize};
-
-#[derive(Debug, Clone, Serialize, Deserialize)]
-pub struct ChatCompletions {
-    #[serde(default)]
-    pub model: String,
-    pub messages: Vec<Message>,
-}
-
-#[derive(Debug, Clone, Serialize, Deserialize)]
-pub struct Message {
-    pub role: String,
-    pub content: String,
-}