Create ReadImageTool.py

tools/ReadImageTool.py

@@ -0,0 +1,11 @@
+import base64
+
+class ReadImageTool(Tool):
+    name = "read_image"
+    description = "Reads an image file and returns its base64 string for Gemini."
+    inputs = {"file_path": {"type": "string"}}
+    output_type = "string"
+
+    def forward(self, file_path: str) -> str:
+        with open(file_path, "rb") as img:
+            return base64.b64encode(img.read()).decode("utf-8")