diff --git a/tools/update_agent.py b/tools/update_agent.py
index c44664c..b038074 100644
--- a/tools/update_agent.py
+++ b/tools/update_agent.py
@@ -16,6 +16,7 @@ ZSGLPT Update-Agent（宿主机运行）
 from __future__ import annotations
 
 import argparse
+import fnmatch
 import json
 import os
 import shutil
@@ -122,7 +123,25 @@ def _normalize_prefixes(prefixes: Tuple[str, ...]) -> Tuple[str, ...]:
 
 def _git_has_untracked_changes(*, cwd: Path, ignore_prefixes: Tuple[str, ...]) -> Tuple[bool, int, list[str]]:
     """检查 untracked 文件（尊重 .gitignore），并忽略指定前缀目录。"""
+    return _git_has_untracked_changes_v2(cwd=cwd, ignore_prefixes=ignore_prefixes, ignore_globs=())
+
+
+def _normalize_globs(globs: Tuple[str, ...]) -> Tuple[str, ...]:
+    normalized = []
+    for g in globs:
+        text = str(g or "").strip()
+        if not text:
+            continue
+        normalized.append(text)
+    return tuple(normalized)
+
+
+def _git_has_untracked_changes_v2(
+    *, cwd: Path, ignore_prefixes: Tuple[str, ...], ignore_globs: Tuple[str, ...]
+) -> Tuple[bool, int, list[str]]:
+    """检查 untracked 文件（尊重 .gitignore），并忽略指定前缀目录/通配符。"""
     ignore_prefixes = _normalize_prefixes(ignore_prefixes)
+    ignore_globs = _normalize_globs(ignore_globs)
     out = subprocess.check_output(["git", "ls-files", "--others", "--exclude-standard"], cwd=str(cwd), text=True)
     paths = [line.strip() for line in out.splitlines() if line.strip()]
 
@@ -130,13 +149,20 @@ def _git_has_untracked_changes(*, cwd: Path, ignore_prefixes: Tuple[str, ...]) -
     for p in paths:
         if ignore_prefixes and any(p.startswith(prefix) for prefix in ignore_prefixes):
             continue
+        if ignore_globs and any(fnmatch.fnmatch(p, pattern) for pattern in ignore_globs):
+            continue
         filtered.append(p)
 
     samples = filtered[:20]
     return (len(filtered) > 0), len(filtered), samples
 
 
-def _git_is_dirty(*, cwd: Path, ignore_untracked_prefixes: Tuple[str, ...] = ("data/",)) -> dict:
+def _git_is_dirty(
+    *,
+    cwd: Path,
+    ignore_untracked_prefixes: Tuple[str, ...] = ("data/",),
+    ignore_untracked_globs: Tuple[str, ...] = ("*.bak.*", "*.tmp.*", "*.backup.*"),
+) -> dict:
     """
     判断工作区是否“脏”：
     - tracked 变更（含暂存区）一律算脏
@@ -153,8 +179,8 @@ def _git_is_dirty(*, cwd: Path, ignore_untracked_prefixes: Tuple[str, ...] = ("d
         tracked_dirty = True
 
     try:
-        untracked_dirty, untracked_count, untracked_samples = _git_has_untracked_changes(
-            cwd=cwd, ignore_prefixes=ignore_untracked_prefixes
+        untracked_dirty, untracked_count, untracked_samples = _git_has_untracked_changes_v2(
+            cwd=cwd, ignore_prefixes=ignore_untracked_prefixes, ignore_globs=ignore_untracked_globs
         )
     except Exception:
         # 若 untracked 检测异常，回退到不影响更新：不计入 dirty
@@ -167,6 +193,7 @@ def _git_is_dirty(*, cwd: Path, ignore_untracked_prefixes: Tuple[str, ...] = ("d
         "dirty_tracked": bool(tracked_dirty),
         "dirty_untracked": bool(untracked_dirty),
         "dirty_ignore_untracked_prefixes": list(_normalize_prefixes(ignore_untracked_prefixes)),
+        "dirty_ignore_untracked_globs": list(_normalize_globs(ignore_untracked_globs)),
         "untracked_count": int(untracked_count),
         "untracked_samples": list(untracked_samples),
     }