Fix agent tool support, fix many other bugs

backend/src/agent.py

@@ -34,6 +34,7 @@ class Agent:
         self.config = {field.name: data.get(field.name, field.default) for field in getattr(agent_class, 'schema_fields', [])}
         self.resources = resources
 
+        # should be in expert init?
         self.tools = []
         for resource in self.resources:
             if resource.kind != 'tool': continue
@@ -66,7 +67,6 @@ class Agent:
                 **kwargs,
             },
         )
-        await self.run(run)
         out_stream = Stream(self.app)
 
         def on_output_event(stream):
@@ -77,6 +77,7 @@ class Agent:
             out_stream.close()
         run.on('output', on_output_event)
         run.on('done', on_done)
+        await self.run(run)
 
         return out_stream
 
@@ -95,14 +96,11 @@ class Agent:
             user_id=self.user_id,
             input={
                 "messages": messages,
-                "tools": getattr(self, "tools", []),
                 "chat_id": message.chat_id,
                 "thread_id": message.thread_id,
             },
         )
 
-        await self.run(run)
-
         async def on_output_event(stream):
             print("[agent] run output " + repr(stream))
             new_message = await self.app.send_chat_message(
@@ -118,6 +116,8 @@ class Agent:
             })
 
         await run.on_async('output', on_output_event)
+
+        await self.run(run)
         return run
 
     def _role_for_message(self, message):