diff --git a/tier2/gen-worker/service/control_plane.py b/tier2/gen-worker/service/control_plane.py
index 197eb4d2..8a5d26a1 100644
--- a/tier2/gen-worker/service/control_plane.py
+++ b/tier2/gen-worker/service/control_plane.py
@@ -238,8 +238,10 @@ def _compact_sse_event(event: dict) -> dict:
     """把一个 SSE 事件压成 trace 行的精简形(只留有意义字段,长文本截断;绝不抛)。"""
     etype = event.get("type")
     out: dict = {"type": etype, "reply_id": event.get("reply_id")}
-    # 工具调用:记工具名(看 agent 调了哪些工具、按什么顺序——卡在哪一目了然)。
-    for k in ("tool_name", "name", "id"):
+    # 工具调用:记工具名 + call-id + 结果态(看 agent 调了哪些工具、按什么顺序、成没成——卡在哪一目了然)。
+    #   2.0.2 真实字段名(源码核实 event/_event.py):TOOL_CALL_START 带 tool_call_name + tool_call_id;
+    #   TOOL_CALL_END / TOOL_RESULT_END 带 tool_call_id(+ state=结果态)。此前误取 tool_name/name/id → 抓不到名。
+    for k in ("tool_call_name", "tool_call_id", "tool_name", "name", "state"):
         if event.get(k):
             out[k] = event.get(k)
     # 截断可能的长文本字段(text/delta/output/content 的字符串形),只留前 200 字。