diff --git a/src/strands_tools/editor.py b/src/strands_tools/editor.py
index a70f86da..1f131241 100644
--- a/src/strands_tools/editor.py
+++ b/src/strands_tools/editor.py
@@ -314,7 +314,7 @@ def editor(
     console = console_util.create()
 
     try:
-        path = os.path.expanduser(path)
+        path = os.path.abspath(os.path.expanduser(path))
 
         if not command:
             raise ValueError("Command is required")
@@ -805,3 +805,4 @@ def editor(
             "status": "error",
             "content": [{"text": f"Error: {str(e)}"}],
         }
+
diff --git a/src/strands_tools/file_read.py b/src/strands_tools/file_read.py
index 094b5438..bb7fa8f0 100644
--- a/src/strands_tools/file_read.py
+++ b/src/strands_tools/file_read.py
@@ -405,6 +405,8 @@ def find_files(console: Console, pattern: str, recursive: bool = True) -> List[s
 
         try:
             matching_files = glob.glob(pattern, recursive=recursive)
+            # Filter out files in hidden directories
+            matching_files = [f for f in matching_files if not any(part.startswith(".") for part in f.split(os.sep))]
             return sorted(matching_files)
         except Exception as e:
             console.print(
diff --git a/src/strands_tools/generate_image.py b/src/strands_tools/generate_image.py
index c9f50385..1bc926d4 100644
--- a/src/strands_tools/generate_image.py
+++ b/src/strands_tools/generate_image.py
@@ -241,10 +241,11 @@ def generate_image(tool: ToolUse, **kwargs: Any) -> ToolResult:
                 os.makedirs(output_dir)
 
             i = 1
-            base_image_path = os.path.join(output_dir, f"{filename}.png")
+            ext = "jpg" if output_format == "jpeg" else output_format
+            base_image_path = os.path.join(output_dir, f"{filename}.{ext}")
             image_path = base_image_path
             while os.path.exists(image_path):
-                image_path = os.path.join(output_dir, f"{filename}_{i}.png")
+                image_path = os.path.join(output_dir, f"{filename}_{i}.{ext}")
                 i += 1
 
             with open(image_path, "wb") as file: