Fix agent API wrapper constructor compatibility

sdk/agent_api_wrapper.py

@@ -1,6 +1,7 @@
 from __future__ import annotations
 
 import asyncio
+import inspect
 import logging
 import sys
 import re
@@ -43,13 +44,30 @@ class AgentApiWrapper(AgentApi):
         self._base_url = self._normalize_base_url(base_url or url or "")
         self._init_kwargs = dict(kwargs)
         self.chat_id = chat_id
-        super().__init__(
-            agent_id=agent_id,
-            url=self._build_ws_url(self._base_url, chat_id),
-            **kwargs,
-        )
+        if self._supports_modern_constructor():
+            super().__init__(
+                agent_id=agent_id,
+                base_url=self._base_url,
+                chat_id=chat_id,
+                **kwargs,
+            )
+        else:
+            super().__init__(
+                agent_id=agent_id,
+                url=self._build_ws_url(self._base_url, chat_id),
+                **kwargs,
+            )
         self.last_tokens_used = 0
 
+    @staticmethod
+    def _supports_modern_constructor() -> bool:
+        try:
+            parameters = inspect.signature(AgentApi.__init__).parameters
+        except (TypeError, ValueError):
+            return False
+
+        return "base_url" in parameters and "chat_id" in parameters
+
     @staticmethod
     def _normalize_base_url(base_url: str) -> str:
         parsed = urlsplit(base_url)

tests/platform/test_real.py

@@ -3,6 +3,8 @@ import asyncio
 import pytest
 
 from core.protocol import SettingsAction
+import sdk.agent_api_wrapper as agent_api_wrapper_module
+from sdk.agent_api_wrapper import AgentApiWrapper
 from sdk.interface import MessageChunk, MessageResponse, UserSettings
 from sdk.prototype_state import PrototypeStateStore
 from sdk.real import RealPlatformClient
@@ -59,6 +61,93 @@ class LegacyAgentApi:
         self.last_tokens_used = 7
 
 
+def test_agent_api_wrapper_uses_modern_constructor_when_available(monkeypatch):
+    calls: list[dict[str, object]] = []
+
+    def fake_init(self, agent_id, base_url, chat_id, **kwargs):
+        calls.append(
+            {
+                "agent_id": agent_id,
+                "base_url": base_url,
+                "chat_id": chat_id,
+                "kwargs": kwargs,
+            }
+        )
+        self.id = agent_id
+        self.url = base_url
+        self.callback = kwargs.get("callback")
+        self.on_disconnect = kwargs.get("on_disconnect")
+
+    monkeypatch.setattr(agent_api_wrapper_module.AgentApi, "__init__", fake_init)
+
+    wrapper = AgentApiWrapper(
+        agent_id="agent-1",
+        base_url="https://agent.example.com/v1/agent_ws",
+        chat_id="chat-1",
+        callback="cb",
+        on_disconnect="disconnect",
+    )
+    child = wrapper.for_chat("chat-2")
+
+    assert calls == [
+        {
+            "agent_id": "agent-1",
+            "base_url": "https://agent.example.com",
+            "chat_id": "chat-1",
+            "kwargs": {"callback": "cb", "on_disconnect": "disconnect"},
+        },
+        {
+            "agent_id": "agent-1",
+            "base_url": "https://agent.example.com",
+            "chat_id": "chat-2",
+            "kwargs": {"callback": "cb", "on_disconnect": "disconnect"},
+        },
+    ]
+    assert wrapper._base_url == "https://agent.example.com"
+    assert wrapper.chat_id == "chat-1"
+    assert wrapper.last_tokens_used == 0
+    assert child.chat_id == "chat-2"
+
+
+def test_agent_api_wrapper_falls_back_to_legacy_url_constructor(monkeypatch):
+    calls: list[dict[str, object]] = []
+
+    def fake_init(self, agent_id, url, callback=None, on_disconnect=None):
+        calls.append(
+            {
+                "agent_id": agent_id,
+                "url": url,
+                "callback": callback,
+                "on_disconnect": on_disconnect,
+            }
+        )
+        self.id = agent_id
+        self.url = url
+        self.callback = callback
+        self.on_disconnect = on_disconnect
+
+    monkeypatch.setattr(agent_api_wrapper_module.AgentApi, "__init__", fake_init)
+
+    wrapper = AgentApiWrapper(
+        agent_id="agent-2",
+        url="https://agent.example.com/v1/agent_ws/chat-9/",
+        chat_id="chat-9",
+        callback="cb",
+    )
+
+    assert calls == [
+        {
+            "agent_id": "agent-2",
+            "url": "https://agent.example.com/v1/agent_ws/chat-9/",
+            "callback": "cb",
+            "on_disconnect": None,
+        }
+    ]
+    assert wrapper._base_url == "https://agent.example.com"
+    assert wrapper.chat_id == "chat-9"
+    assert wrapper.last_tokens_used == 0
+
+
 @pytest.mark.asyncio
 async def test_real_platform_client_get_or_create_user_uses_local_state():
     client = RealPlatformClient(