diff --git a/tools/doc_term_audit.py b/tools/doc_term_audit.py
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+#!/usr/bin/env python3
+r"""doc_term_audit.py — GDD 退役术语扫描（半自动）
+
+动机：机制换名/退役批（如 2026-09-20 伏击→警觉）之后，正文里容易残留旧措辞的
+"现行语义"引用——修订记录与退役注记里的旧词是合法历史，混在一起肉眼难分。
+本工具维护一份退役词表，全文档扫描命中并按上下文分两类：
+  [疑似现行]  该行不含日期/退役/换装等白名单信号，也没落在版本历史节——人工判读
+  [留档类]  行内带日期、退役/作废/换装/继任/留档/历史等信号，或位于修订记录节——默认忽略
+
+用法:
+  python tools/doc_term_audit.py                  # 扫默认范围，报告模式（exit 0）
+  python tools/doc_term_audit.py --strict         # 有疑似现行命中时 exit 1（供门禁/CI）
+  python tools/doc_term_audit.py <file.md> ...    # 只扫指定文件
+  python tools/doc_term_audit.py --json           # 机器可读
+
+口径：只扫 design/gdd/ design/registry/ design/ux/——design/archive、design/research
+（历史提案）、docs/（样例）与 production/ 不在扫描域；词表扩充 = 改 RETIRED_TERMS。
+"""
+import argparse
+import json
+import re
+import sys
+from pathlib import Path
+
+# 退役词表：(正则词, 退役日期, 继任词/口径, 备注)。新增退役批时在此追加一行。
+RETIRED_TERMS = [
+    ("伏击", "2026-09-20", "警觉（blast 负向）", "伏击机制整体退役"),
+    ("ambush_double|ambush_layers|flat_attach", "2026-09-20", "enemy_alert / effects 投影", "伏击数据键退役"),
+    ("advantage_per_round_cap", "2026-09-20", "（已删字段——行动点天然封顶）", "单轮授予上限删除批"),
+    ("溢出未生效", "2026-09-20", "（行类型退役；满层拒收走奖励未生效行）", "行协议 10→9 类"),
+    ("m_amb|M_AMB", "2026-09-20", "（伏击暴露当量口径作废）", "挖掘风险不等式退役"),
+    ("七型|五型×正负|五型 × 正负", "2026-09-20", "八型（十六格）", "格面资源八型批"),
+    ("10 类行|行型封闭为 10 类|10 类封闭协议|行型 10 类", "2026-09-20", "9 类", "溢出未生效行下线"),
+    ("拔旗|撤旗", "2026-09-19", "（旗无移除手段——插旗不可逆）", "插旗不可逆批"),
+    ("三选一反噬|标错反噬|反噬三选一", "2026-09-15", "极性矩阵负向兑付", "格面资源批"),
+    ("defense_up", "2026-09-16", "ac_up（护甲强化）", "护甲等级掷点批换装"),
+    ("蓄力行|charge 行", "2026-09-16", "施放行（cast）", "敌人技能池批改型"),
+    ("行为环", "2026-09-16", "技能池（池模板+摇号）", "固定出招剧本退役"),
+    ("heavy_multiplier|重击倍率", "2026-09-16", "技能行 damage_mult", "行为环退役随批"),
+    ("多段命中", "2026-09-19", "（退役，无防御磨损体系）", "技能池新效应词汇批"),
+    ("充能", "2026-09-19", "（挖掘期/战斗段充能退役；蓄力 empower 仍在）", "充能退役批——注意误报"),
+    ("英雄卡|敌人卡", "2026-09-20", "站桩立绘", "敌人卡形态裁决批"),
+    ("道具窗口|可选类道具|已消耗未生效|使用被拒|窗口打开锚行|窗口跳过锚行", "2026-09-15", "（随可选类道具整体删除）", "格面资源批"),
+    ("雾格", "2026-09-14", "（雾格移除）", "不做清单"),
+]
+
+DEFAULT_DIRS = ["design/gdd", "design/registry", "design/ux"]
+
+# 行级白名单信号：命中任一即归"留档类"
+WHITELIST_RE = re.compile(
+    r"2026-\d{2}-\d{2}"
+    r"|退役|作废|换装|继任|留档|历史口径|已下线|随批|随伏击|不再|已删除"
+    r"|\bv0\.\d+"
+    r"|修订记录|版本历史|履行回执|台账"
+)
+# 节级白名单：版本历史/修订记录节内整段豁免
+SECTION_RE = re.compile(r"^#{1,6}\s*(版本历史|修订记录)")
+COMMENT_RE = re.compile(r"^\s*[;#]")
+
+
+def scan(paths):
+    terms = [(re.compile(t), date, repl, note) for t, date, repl, note in RETIRED_TERMS]
+    findings = []   # {term, file, line, text, klass, retired, replacement}
+    for p in paths:
+        text = Path(p).read_text(encoding="utf-8").replace("\r\n", "\n")
+        in_version_section = False
+        prev_lines = []   # 已处理行（供"上一 2 行留档标记继承"判读）
+        for lineno, line in enumerate(text.split("\n"), 1):
+            if SECTION_RE.match(line):
+                in_version_section = True
+            hits = [(m.group(0), t) for t in terms for m in [t[0].search(line)] if m]
+            # 上一 2 行带留档/作废/历史标记（如"下表留档作废"头注）→ 本行视为留档
+            prev = " ".join(prev_lines[-2:]) if prev_lines else ""
+            prev_lines.append(line)
+            if not hits:
+                continue
+            if in_version_section or WHITELIST_RE.search(line) or WHITELIST_RE.search(prev) or COMMENT_RE.match(line):
+                klass = "留档类"
+            else:
+                klass = "疑似现行"
+            findings.append({
+                "term": "、".join(sorted({h[0] for h in hits})),
+                "file": str(p).replace("\\", "/"),
+                "line": lineno,
+                "klass": klass,
+                "text": line.strip()[:160],
+                "retired": hits[0][1][1],
+                "replacement": hits[0][1][2],
+            })
+    return findings
+
+
+def main():
+    ap = argparse.ArgumentParser(description="GDD 退役术语扫描（半自动）")
+    ap.add_argument("files", nargs="*", help="指定文件；缺省扫默认目录")
+    ap.add_argument("--strict", action="store_true", help="疑似现行命中时 exit 1")
+    ap.add_argument("--json", action="store_true")
+    args = ap.parse_args()
+
+    if args.files:
+        paths = args.files
+    else:
+        paths = []
+        for d in DEFAULT_DIRS:
+            paths += sorted(Path(d).rglob("*.md"))
+            paths += sorted(Path(d).rglob("*.yaml"))
+    paths = [p for p in paths if Path(p).exists()]
+
+    findings = scan(paths)
+    suspect = [f for f in findings if f["klass"] == "疑似现行"]
+    kept = [f for f in findings if f["klass"] != "疑似现行"]
+
+    if args.json:
+        print(json.dumps({"suspect": suspect, "archived_count": len(kept)}, ensure_ascii=False, indent=1))
+    else:
+        print(f"扫描 {len(paths)} 个文件 · 退役词命中 {len(findings)} 处 · 疑似现行 {len(suspect)} 处（留档类 {len(kept)} 处默认忽略）")
+        by_term = {}
+        for f in suspect:
+            by_term.setdefault(f["term"], []).append(f)
+        for term, items in sorted(by_term.items()):
+            print(f"\n【{term}】×{len(items)}（退役 {items[0]['retired']} → {items[0]['replacement']}）")
+            for it in items[:8]:
+                print(f"  {it['file']}:{it['line']}  {it['text']}")
+            if len(items) > 8:
+                print(f"  …另有 {len(items) - 8} 处")
+    return 1 if (args.strict and suspect) else 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())