fix recon mcp

tests/test_graylog_mcp.py

@@ -1,5 +1,6 @@
 import json
 import unittest
+from urllib.error import HTTPError
 from unittest.mock import patch
 
 from fgai.graylog_mcp import GraylogMcpClient
@@ -38,6 +39,23 @@ class GraylogMcpTests(unittest.TestCase):
         self.assertEqual(status["status"], "connected")
         self.assertIn("search_messages", status["tools"])
 
+    def test_call_tool_reinitializes_after_stale_session_error(self):
+        responses = iter([
+            HTTPError("http://graylog/api/mcp", 404, "stale session", {}, None),
+            _Response({"result": {"serverInfo": {"version": "7.1.6"}}}, session="session-2"),
+            _Response({}, session="session-2"),
+            _Response({"result": {"tools": [{"name": "search_messages"}]}}, session="session-2"),
+            _Response({"result": {"content": []}}, session="session-2"),
+        ])
+        client = GraylogMcpClient("http://graylog/api/mcp", "raw-token")
+        client.session_id = "old-session"
+
+        with patch("fgai.graylog_mcp.request.urlopen", side_effect=responses):
+            result = client.call_tool("search_messages", {"query": "*"})
+
+        self.assertEqual(result["result"]["content"], [])
+        self.assertEqual(client.session_id, "session-2")
+
 
 if __name__ == "__main__":
     unittest.main()