diff --git a/scripts/watch.py b/scripts/watch.py
index 300c67c..3390851 100644
--- a/scripts/watch.py
+++ b/scripts/watch.py
@@ -147,6 +147,20 @@ def account():
         print(f"        ⚠ 取不到现价: {', '.join(v['price_missing'][:6])}")
 
 
+def _left_today(ins: dict, used: int):
+    """本日剩余额度 = 当日配额 − 今日已投放。用的是执行器那两个纯函数, 口径一致。"""
+    from app.core import exec_timing as et, tradedays as td
+    try:
+        remaining = max(0, int(ins.get("qty") or 0) - int(ins.get("exec_qty") or 0))
+        dl = (ins.get("progress") or {}).get("deadline")
+        left_days = td.trade_days_left(dl, None) if dl else 1
+        quota = et.daily_quota(remaining, left_days,
+                               allow_odd_tail=(ins.get("action") == "EXIT"))
+        return max(0, quota - int(used))
+    except Exception:
+        return "?"
+
+
 def instructions():
     """今日一栏必须写成「投/余/废」三个数, 不能只印一个剩余量。
 
@@ -179,8 +193,11 @@ def instructions():
         except Exception:
             used = sum(int(c.get("qty") or 0) for c in kids)
         void = sum(int(c.get("qty") or 0) for c in kids) - used
-        left = d.get("qty_hint")
-        left = "—" if left is None else str(left)
+        # 「余」必须**现算**, 不能读 last_decision 里的 qty_hint —— 那是执行器上一跳
+        # 存下来的快照, 而投/废是此刻现算的。两者取自不同时刻, 会拼出自相矛盾的一行:
+        # 2026-08-03 实机 002518.SZ 显示 `0/0/200` —— 废了 200 却还说余 0, 因为执行器
+        # 那一跳时第二张分片还挂着(算已投), 等 watch 来看时它刚到期。三个数必须同源。
+        left = _left_today(r, used)
         q = f"{used}/{left}/{void}"
         print("  " + _pad(r["ts_code"], 11)
               + _pad("买" if r["side"] == "buy" else "卖", 5)