[codex] fix bridge state db sync (#740)

* fix bridge session db flush cursor

* fix bridge state db result sync

packages/server/src/services/hermes/agent-bridge/hermes_bridge.py

@@ -688,6 +688,8 @@ class AgentPool:
         if db is None:
             return False
 
+        history_len = len(conversation_history) if conversation_history else 0
+
         try:
             if hasattr(db, "create_session"):
                 db.create_session(
@@ -701,6 +703,7 @@ class AgentPool:
                 if messages:
                     last = messages[-1]
                     if last.get("role") == "user" and last.get("content") == user_content:
+                        self._align_prepersist_flush_cursor(session, history_len)
                         return False
 
             db.append_message(
@@ -710,21 +713,86 @@ class AgentPool:
             )
 
             # AIAgent will build messages as conversation_history + current user.
-            # Since the current user was pre-persisted above, advance its flush
-            # cursor so the normal end-of-turn flush only writes assistant/tool
-            # messages for this turn.
-            history_len = len(conversation_history) if conversation_history else 0
-            try:
-                session.agent._last_flushed_db_idx = max(
-                    int(getattr(session.agent, "_last_flushed_db_idx", 0) or 0),
-                    history_len + 1,
-                )
-            except Exception:
-                pass
+            # Since the current user was pre-persisted above, align the flush
+            # cursor so the normal end-of-turn flush starts at assistant/tool
+            # messages generated by this run.
+            self._align_prepersist_flush_cursor(session, history_len)
             return True
         except Exception:
             return False
 
+    def _align_prepersist_flush_cursor(self, session: AgentSession, history_len: int) -> None:
+        try:
+            session.agent._last_flushed_db_idx = history_len + 1
+        except Exception:
+            pass
+
+    def _session_db_message_count(self, session_id: str, profile: str | None) -> int | None:
+        db = self._db.get_for_profile(profile)
+        if db is None or not hasattr(db, "get_messages"):
+            return None
+        try:
+            return len(db.get_messages(session_id) or [])
+        except Exception:
+            return None
+
+    def _sync_result_tail_to_session_db(
+        self,
+        session: AgentSession,
+        result: dict[str, Any],
+        conversation_history: list[dict[str, Any]] | None,
+        profile: str | None,
+        db_count_after_prepersist: int | None,
+    ) -> None:
+        db = self._db.get_for_profile(profile)
+        if db is None or db_count_after_prepersist is None:
+            return
+
+        after_count = self._session_db_message_count(session.session_id, profile)
+        if after_count is None or after_count > db_count_after_prepersist:
+            return
+
+        messages = result.get("messages")
+        if not isinstance(messages, list):
+            return
+
+        history_len = len(conversation_history) if conversation_history else 0
+        generated = [
+            msg for msg in messages[history_len + 1:]
+            if isinstance(msg, dict) and msg.get("role") in {"assistant", "tool"}
+        ]
+        if not generated:
+            return
+
+        appended = 0
+        for msg in generated:
+            try:
+                db.append_message(
+                    session_id=session.session_id,
+                    role=str(msg.get("role") or "assistant"),
+                    content=msg.get("content"),
+                    tool_name=msg.get("tool_name"),
+                    tool_calls=msg.get("tool_calls") if isinstance(msg.get("tool_calls"), list) else None,
+                    tool_call_id=msg.get("tool_call_id"),
+                    finish_reason=msg.get("finish_reason"),
+                    reasoning=msg.get("reasoning") if msg.get("role") == "assistant" else None,
+                    reasoning_content=msg.get("reasoning_content") if msg.get("role") == "assistant" else None,
+                    reasoning_details=msg.get("reasoning_details") if msg.get("role") == "assistant" else None,
+                    codex_reasoning_items=msg.get("codex_reasoning_items") if msg.get("role") == "assistant" else None,
+                    codex_message_items=msg.get("codex_message_items") if msg.get("role") == "assistant" else None,
+                )
+                appended += 1
+            except Exception:
+                break
+
+        if appended:
+            print(
+                "[hermes_bridge] synced missing result tail to session db "
+                f"session={session.session_id} appended={appended}",
+                file=sys.stderr,
+                flush=True,
+            )
+
     def start_chat(
         self,
         session_id: str,
@@ -776,6 +844,7 @@ class AgentPool:
                 except Exception:
                     previous_approval_callback = None
                 self._prepersist_user_message(session, message, conversation_history, profile)
+                db_count_after_prepersist = self._session_db_message_count(session.session_id, profile)
                 if force_compress:
                     compress = getattr(session.agent, "_compress_context", None)
                     if callable(compress):
@@ -802,6 +871,13 @@ class AgentPool:
                     **kwargs,
                 )
                 result = _jsonable(result if isinstance(result, dict) else {"value": result})
+                self._sync_result_tail_to_session_db(
+                    session,
+                    result,
+                    conversation_history,
+                    profile,
+                    db_count_after_prepersist,
+                )
                 with session.lock:
                     if isinstance(result.get("messages"), list):
                         session.history = result["messages"]