diff --git a/pipeline_bidding/bid_write_capability.py b/pipeline_bidding/bid_write_capability.py
index 209ebc9..0910451 100644
--- a/pipeline_bidding/bid_write_capability.py
+++ b/pipeline_bidding/bid_write_capability.py
@@ -225,6 +225,83 @@ async def write_chapter(chapter_id, content, summary="", mode="replace",
                       % (d.get("title"), len(new_txt), ver + 1, _gap_note))
 
 
+async def revise_chapter_text(chapter_id, edits="", who=None, agent_id=None):
+    """定点替换已定稿章节正文的局部文本（2026-09-16 甘肃 1.9 删章后实测需要）。
+
+    write_chapter 对 approved 章节拒写（防误覆盖），但存在必须修正的合规性
+    局部改动（悬空交叉引用/违反招标书明文），整章重写既昂贵又有丢内容风险。
+    本工具做「断言式」定点替换：
+    - edits = [{"find": 原文片段, "replace": 新文本}]，find 必须在正文中
+      **恰好出现一次**（0 次或多次都拒绝整个操作，防误伤/防歧义）；
+    - 全部命中才落库（先校验后写，单条不合法整批拒绝）；
+    - 版本 +1、审计记录、镜像文件同步；approved 状态保持不变（局部合规修正
+      不触发整章重审——评审语义与分数未变）。
+
+    用于：删章后的悬空引用清理、与招标书明文冲突的表述纠正、跨章编号引用
+    错位修正。不用于内容扩写（那走评审退回重写）。
+    """
+    import json as _json
+    if not chapter_id:
+        return False, "缺少 chapter_id"
+    if isinstance(edits, str):
+        try:
+            edits = _json.loads(edits)
+        except Exception as e:  # noqa: BLE001
+            return False, "edits 解析失败（须为 JSON 数组）：%s" % str(e)[:120]
+    if not isinstance(edits, list) or not edits:
+        return False, "edits 必须是非空数组：[{find, replace}]"
+    db, dbname = get_db()
+    async with db.sqlorContext(dbname) as sor:
+        recs = await sor.sqlExe(
+            "SELECT id, project_id, chapter_no, title, content, version, status "
+            "FROM " + TABLE + " WHERE id=${cid}$", {"cid": chapter_id})
+        await sor.sqlExe("COMMIT", {})
+        if not recs:
+            return False, "章节不存在: %s" % chapter_id
+        d = rec_to_dict(recs[0])
+        txt = d.get("content") or ""
+        norm, applied = [], []
+        for i, e in enumerate(edits):
+            if not isinstance(e, dict):
+                return False, "edits[%d] 必须是对象 {find, replace}" % i
+            find = e.get("find")
+            rep = e.get("replace")
+            if not isinstance(find, str) or not find.strip():
+                return False, "edits[%d].find 必须是非空字符串" % i
+            if rep is None or not isinstance(rep, str):
+                return False, "edits[%d].replace 必须是字符串（可为空串=删除）" % i
+            n = txt.count(find)
+            if n != 1:
+                return False, ("edits[%d] 不满足唯一性断言：find 在章节「%s」中出现 %d 次"
+                               "（要求恰好 1 次）。请扩大上下文片段使其唯一。find 前80字=%s"
+                               % (i, d.get("title"), n, find[:80]))
+            norm.append((find, rep))
+        # 全部断言通过才落库
+        new_txt = txt
+        for find, rep in norm:
+            new_txt = new_txt.replace(find, rep, 1)
+            applied.append(find[:40])
+        ver = to_int(d.get("version"), 1)
+        await sor.sqlExe(
+            "UPDATE " + TABLE + " SET content=${c}$, word_count=${w}$, "
+            "version=${v}$, updated_at=NOW() WHERE id=${cid}$",
+            {"c": new_txt, "w": len(new_txt), "v": ver + 1, "cid": chapter_id})
+        await sor.sqlExe("COMMIT", {})
+        await record(sor, d.get("project_id"), TABLE, chapter_id, "revise_text",
+                     from_state=d.get("status"), to_state=d.get("status"),
+                     who=who, agent_id=agent_id,
+                     detail="定点替换 %d 处：%s" % (len(norm), "｜".join(applied)[:400]))
+        _mir = ""
+        try:
+            from .bid_chapter_mirror import sync_chapter_mirror
+            _mir = await sync_chapter_mirror(sor, d.get("project_id"), chapter_id)
+        except Exception as _e:  # noqa: BLE001
+            logger.warning("chapter mirror failed: %s", str(_e)[:120])
+        return True, ("章节「%s」定点替换 %d 处（v%d，%d 字符，状态 %s 不变）%s"
+                      % (d.get("title"), len(norm), ver + 1, len(new_txt),
+                         d.get("status"), "；镜像 %s" % _mir if _mir else ""))
+
+
 async def submit_chapter(chapter_id, note="", who=None, agent_id=None):
     """提交章节评审：writing → written（reconciler 会自动派发评审任务）。"""
     db, dbname = get_db()
diff --git a/pipeline_bidding/role_tool_schemas.py b/pipeline_bidding/role_tool_schemas.py
index 0b1c8da..5833afb 100644
--- a/pipeline_bidding/role_tool_schemas.py
+++ b/pipeline_bidding/role_tool_schemas.py
@@ -235,6 +235,13 @@ BID_ROLE_TOOL_SCHEMAS = {
         "params": {"chapter_id": "章节ID", "note": "说明(可选)"},
         "required": ["chapter_id"],
     },
+    "revise_chapter_text": {
+        "module": f"{_M}.bid_write_capability",
+        "description": "定点替换章节正文局部文本（含已 approved 章节）：edits=[{find,replace}]，find 必须在正文中恰好出现一次否则整批拒绝。仅用于合规性局部修正（悬空交叉引用/违反招标书明文/跨章编号错位），内容扩写走评审退回重写。版本+1留审计，approved 状态不触发重审",
+        "params": {"chapter_id": "章节ID",
+                   "edits": "JSON数组 [{find:原文片段(须唯一), replace:新文本(空串=删除)}]"},
+        "required": ["chapter_id", "edits"],
+    },
     # ── bid_review_capability：标书评审员 ──
     "review_chapter": {
         "module": f"{_M}.bid_review_capability",