diff --git a/mofin_db.py b/mofin_db.py
index 54eed404..f319f6ab 100644
--- a/mofin_db.py
+++ b/mofin_db.py
@@ -1259,6 +1259,33 @@ def sync_recommend_tag(conn, code: str, timing_signal: str):
             _h = conn.execute("SELECT shares FROM holdings WHERE code=? AND is_active=1", (code,)).fetchone()
             if not (_h and (_h[0] or 0) > 0):
                 timing_signal = ""  # 非持仓的卖出/止盈不算动作信号
+        # ── 仓位自动补全（2026-07-27 老爸：不明确就让它明确，不是丢弃）──
+        # LLM 经常输出"减仓或观望/中等仓位"等模糊表述，系统按公式自动计算。
+        # 基础仓位 by RR(<1.5→不推荐,1.5~3→8%,3~5→12%,5+→15%) × 成长系数0.85(兜底)
+        # → 最终范围5-20%
+        if timing_signal in _ACTION_BUY:
+            import re as _re2
+            _pos_r = conn.execute(
+                "SELECT rr_ratio, position_advice FROM holding_strategies WHERE code=? AND status='active'", (code,)).fetchone()
+            if _pos_r and not _re2.search(r'\d+(?:\.\d+)?\s*%', _pos_r[1] or ''):
+                _rr_pos = float(_pos_r[0] or 0)
+                if _rr_pos < 1.5:
+                    _pct = 0  # RR不推荐
+                elif _rr_pos < 3:
+                    _pct = 8
+                elif _rr_pos < 5:
+                    _pct = 12
+                else:
+                    _pct = 15
+                # 系数兜底：成长股0.85（最保守），大盘系数1.0（中性）
+                _pct = round(_pct * 0.85, 0)
+                _pct = max(5, min(20, _pct))
+                _pos_auto = f"{int(_pct)}%（系统按RR{_rr_pos:.1f}自动计算，见原建议仓位）"
+                conn.execute(
+                    "UPDATE holding_strategies SET position_advice=? WHERE code=? AND status='active'",
+                    (_pos_auto, code))
+                conn.commit()
+                print(f"  [AUTO-POS] {code} 仓位'{_pos_r[1]}'→'{_pos_auto}'", flush=True)
         if timing_signal in _ACTION_BUY or timing_signal in _ACTION_SELL:
             conn.execute(
                 "UPDATE holding_strategies SET tag='current_recommend' "