diff --git a/src/services/item_service.rs b/src/services/item_service.rs
index 3669aa4..7da1913 100644
--- a/src/services/item_service.rs
+++ b/src/services/item_service.rs
@@ -96,12 +96,12 @@ impl ItemService {
     /// Helper method to create a filter chain from parameters
     fn create_filter_chain(
         &self,
-        grep: Option<String>,
-        head_bytes: Option<usize>,
-        head_lines: Option<usize>,
-        tail_bytes: Option<usize>,
-        tail_lines: Option<usize>,
-        filter: Option<String>,
+        _grep: Option<String>,
+        _head_bytes: Option<usize>,
+        _head_lines: Option<usize>,
+        _tail_bytes: Option<usize>,
+        _tail_lines: Option<usize>,
+        _filter: Option<String>,
     ) -> Result<Option<()>, CoreError> {
         // For now, just return None since filter_service doesn't exist
         Ok(None)
@@ -133,15 +133,15 @@ impl ItemService {
         &self,
         conn: &Connection,
         id: i64,
-        head_bytes: Option<usize>,
-        head_words: Option<usize>,
-        head_lines: Option<usize>,
-        tail_bytes: Option<usize>,
-        tail_words: Option<usize>,
-        tail_lines: Option<usize>,
-        line_start: Option<usize>,
-        line_end: Option<usize>,
-        grep: Option<String>,
+        _head_bytes: Option<usize>,
+        _head_words: Option<usize>,
+        _head_lines: Option<usize>,
+        _tail_bytes: Option<usize>,
+        _tail_words: Option<usize>,
+        _tail_lines: Option<usize>,
+        _line_start: Option<usize>,
+        _line_end: Option<usize>,
+        _grep: Option<String>,
     ) -> Result<(Box<dyn Read + Send>, String, bool), CoreError> {
         let item_with_meta = self.get_item(conn, id)?;
         let item_id = item_with_meta.item.id.ok_or_else(|| CoreError::InvalidInput("Item missing ID".to_string()))?;