improve tools backend description forwaring

tests/fake_mcp_server.py

@@ -21,6 +21,19 @@ TOOLS = [
             "additionalProperties": False,
         },
     },
+    {
+        "name": "list_branches",
+        "description": "List all branches in a repository for a given owner and repo.",
+        "inputSchema": {
+            "type": "object",
+            "properties": {
+                "owner": {"type": "string"},
+                "repo": {"type": "string"}
+            },
+            "required": ["owner", "repo"],
+            "additionalProperties": False
+        }
+    },
     {
         "name": "delete_file",
         "title": "Delete file",
@@ -71,7 +84,7 @@ for line in sys.stdin:
                 {
                     "jsonrpc": "2.0",
                     "id": msg_id,
-                    "result": {"tools": [TOOLS[0]], "nextCursor": "page-2"},
+                    "result": {"tools": [TOOLS[0], TOOLS[1]], "nextCursor": "page-2"},
                 }
             )
         else:
@@ -79,7 +92,7 @@ for line in sys.stdin:
                 {
                     "jsonrpc": "2.0",
                     "id": msg_id,
-                    "result": {"tools": [TOOLS[1]]},
+                    "result": {"tools": [TOOLS[2]]},
                 }
             )
         continue