Update OpenAI prompt on each interaction (#118747)

homeassistant/components/openai_conversation/conversation.py

@@ -146,58 +146,58 @@ class OpenAIConversationEntity(
             messages = self.history[conversation_id]
         else:
             conversation_id = ulid.ulid_now()
+            messages = []
 
-            if (
-                user_input.context
-                and user_input.context.user_id
-                and (
-                    user := await self.hass.auth.async_get_user(
-                        user_input.context.user_id
-                    )
+        if (
+            user_input.context
+            and user_input.context.user_id
+            and (
+                user := await self.hass.auth.async_get_user(user_input.context.user_id)
+            )
+        ):
+            user_name = user.name
+
+        try:
+            if llm_api:
+                api_prompt = llm_api.api_prompt
+            else:
+                api_prompt = llm.async_render_no_api_prompt(self.hass)
+
+            prompt = "\n".join(
+                (
+                    template.Template(
+                        llm.BASE_PROMPT
+                        + options.get(CONF_PROMPT, llm.DEFAULT_INSTRUCTIONS_PROMPT),
+                        self.hass,
+                    ).async_render(
+                        {
+                            "ha_name": self.hass.config.location_name,
+                            "user_name": user_name,
+                            "llm_context": llm_context,
+                        },
+                        parse_result=False,
+                    ),
+                    api_prompt,
                 )
-            ):
-                user_name = user.name
+            )
 
-            try:
-                if llm_api:
-                    api_prompt = llm_api.api_prompt
-                else:
-                    api_prompt = llm.async_render_no_api_prompt(self.hass)
+        except TemplateError as err:
+            LOGGER.error("Error rendering prompt: %s", err)
+            intent_response = intent.IntentResponse(language=user_input.language)
+            intent_response.async_set_error(
+                intent.IntentResponseErrorCode.UNKNOWN,
+                f"Sorry, I had a problem with my template: {err}",
+            )
+            return conversation.ConversationResult(
+                response=intent_response, conversation_id=conversation_id
+            )
 
-                prompt = "\n".join(
-                    (
-                        template.Template(
-                            llm.BASE_PROMPT
-                            + options.get(CONF_PROMPT, llm.DEFAULT_INSTRUCTIONS_PROMPT),
-                            self.hass,
-                        ).async_render(
-                            {
-                                "ha_name": self.hass.config.location_name,
-                                "user_name": user_name,
-                                "llm_context": llm_context,
-                            },
-                            parse_result=False,
-                        ),
-                        api_prompt,
-                    )
-                )
-
-            except TemplateError as err:
-                LOGGER.error("Error rendering prompt: %s", err)
-                intent_response = intent.IntentResponse(language=user_input.language)
-                intent_response.async_set_error(
-                    intent.IntentResponseErrorCode.UNKNOWN,
-                    f"Sorry, I had a problem with my template: {err}",
-                )
-                return conversation.ConversationResult(
-                    response=intent_response, conversation_id=conversation_id
-                )
-
-            messages = [ChatCompletionSystemMessageParam(role="system", content=prompt)]
-
-        messages.append(
-            ChatCompletionUserMessageParam(role="user", content=user_input.text)
-        )
+        # Create a copy of the variable because we attach it to the trace
+        messages = [
+            ChatCompletionSystemMessageParam(role="system", content=prompt),
+            *messages[1:],
+            ChatCompletionUserMessageParam(role="user", content=user_input.text),
+        ]
 
         LOGGER.debug("Prompt: %s", messages)
         trace.async_conversation_trace_append(

tests/components/openai_conversation/test_conversation.py

@@ -2,6 +2,7 @@
 
 from unittest.mock import AsyncMock, Mock, patch
 
+from freezegun import freeze_time
 from httpx import Response
 from openai import RateLimitError
 from openai.types.chat.chat_completion import ChatCompletion, Choice
@@ -214,11 +215,14 @@ async def test_function_call(
             ),
         )
 
-    with patch(
-        "openai.resources.chat.completions.AsyncCompletions.create",
-        new_callable=AsyncMock,
-        side_effect=completion_result,
-    ) as mock_create:
+    with (
+        patch(
+            "openai.resources.chat.completions.AsyncCompletions.create",
+            new_callable=AsyncMock,
+            side_effect=completion_result,
+        ) as mock_create,
+        freeze_time("2024-06-03 23:00:00"),
+    ):
         result = await conversation.async_converse(
             hass,
             "Please call the test function",
@@ -227,6 +231,11 @@ async def test_function_call(
             agent_id=agent_id,
         )
 
+    assert (
+        "Today's date is 2024-06-03."
+        in mock_create.mock_calls[1][2]["messages"][0]["content"]
+    )
+
     assert result.response.response_type == intent.IntentResponseType.ACTION_DONE
     assert mock_create.mock_calls[1][2]["messages"][3] == {
         "role": "tool",
@@ -262,6 +271,37 @@ async def test_function_call(
     # AGENT_DETAIL event contains the raw prompt passed to the model
     detail_event = trace_events[1]
     assert "Answer in plain text" in detail_event["data"]["messages"][0]["content"]
+    assert (
+        "Today's date is 2024-06-03."
+        in trace_events[1]["data"]["messages"][0]["content"]
+    )
+
+    # Call it again, make sure we have updated prompt
+    with (
+        patch(
+            "openai.resources.chat.completions.AsyncCompletions.create",
+            new_callable=AsyncMock,
+            side_effect=completion_result,
+        ) as mock_create,
+        freeze_time("2024-06-04 23:00:00"),
+    ):
+        result = await conversation.async_converse(
+            hass,
+            "Please call the test function",
+            None,
+            context,
+            agent_id=agent_id,
+        )
+
+    assert (
+        "Today's date is 2024-06-04."
+        in mock_create.mock_calls[1][2]["messages"][0]["content"]
+    )
+    # Test old assert message not updated
+    assert (
+        "Today's date is 2024-06-03."
+        in trace_events[1]["data"]["messages"][0]["content"]
+    )
 
 
 @patch(