diff --git a/backend/app/core/__init__.py b/backend/app/core/__init__.py
index b0f74e0..a9c3e65 100644
--- a/backend/app/core/__init__.py
+++ b/backend/app/core/__init__.py
@@ -1 +1,31 @@
 """核心模块 - 基类和通用工具"""
+
+from .formatter import MarkdownFormatter
+from .state_base import StateBase
+from .intent import (
+    IntentType,
+    IntentResult,
+    IntentClassifier,
+    classify_intent
+)
+from .intent_classifier import get_intent_classifier
+from .human_review import (
+    ReviewManager,
+    InMemoryReviewStore,
+    ReviewStatus,
+    HumanReview
+)
+
+__all__ = [
+    "MarkdownFormatter",
+    "StateBase",
+    "IntentType",
+    "IntentResult",
+    "IntentClassifier",
+    "classify_intent",
+    "get_intent_classifier",
+    "ReviewManager",
+    "InMemoryReviewStore",
+    "ReviewStatus",
+    "HumanReview"
+]