diff --git a/AGENTS.md b/AGENTS.md
index 4ed350b..4c5fb80 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -108,7 +108,7 @@ ComfyUI-Manager 收录审核检查的就是这几类口子（2026-10 审 Anomalo
 1. **不执行下载来的或用户文件里的代码。** 数据不用 `pickle`、`eval`、`exec`、动态导入读；配置文件当数据解析。模型文件只读 safetensors / GGUF 的文件头，`.ckpt` / `.pt` / `.pth` / `.bin` 不打开，界面提醒它们可能带代码。
 2. **下载要能核对。** 只从允许的 https 站点下载，先写 `.part`，核对 SHA-256 后才改名放入；没有可核对的指纹时在界面上说明。下载的东西只当数据用。
 3. **接口不接受任意本机路径。** 只收“类型 + 根目录序号 + 相对路径”，在后端用 `resolve_within` 校验；需要指向本机某个文件时，由服务端自己找到它，只给页面一个令牌。
-4. **会写入、移动、删除文件或替用户联网的接口只接受本机请求**（请求来自本机，没有经过代理，Host 也是本机）。用 `--listen` 开放到局域网时，别的设备只能查看。新接口必须做到；已有接口还没全部做到，改到哪个补哪个。
+4. **会写入、移动、删除文件或替用户联网的接口只接受本机请求**（请求来自本机，没有经过代理，Host 也是本机）。用 `--listen` 开放到局域网时，别的设备只能查看。由 `api/local_guard.py` 的中间件统一把关：`/anomalous/` 下 GET 以外的请求默认只接受本机，确实只读的 POST 列进 `OPEN_POSTS`，不只是读的 GET（备份文件、联网、本机文件夹）列进 `LOCAL_GETS`；新接口要想清楚属于哪一类，不要为了方便放进 `OPEN_POSTS`。
 5. **用户的文件删除一律进回收站，没有回收站就拒绝；从不覆盖**（同名另存为“名字 (2)”或拒绝）。插件自己产生的临时文件（`.part`、暂存区）可以直接删。
 6. **只读的接口也按第 3 条来。** “只是读”不是例外；能按名字、编号取的，就不收路径，由服务端在自己登记的范围里找到文件。
 7. **读用户文件要有上限。** 限制读取的大小和条数；读不了或超大的文件跳过并在结果里说明，不让一个坏文件拖垮整个请求。读到的内容进页面只当纯文本（本节第二条）。
diff --git a/ARCHITECTURE.md b/ARCHITECTURE.md
index e0afebb..2ec0d7c 100644
--- a/ARCHITECTURE.md
+++ b/ARCHITECTURE.md
@@ -111,6 +111,8 @@ covered by the `styles.css` manifest.
   lifecycle; `api/materials.py` owns HTTP mapping and compatibility entry points.
   `api/node_material.py` saves one canvas node's current values as a
   `node_parameter_selection` material (the current-node panel's "save").
+- `api/local_guard.py` decides which requests only this computer may make (every change under
+  `/anomalous/`; other devices may look), as one middleware; see backend.md.
 - `api/media_routes.py`, `api/gallery_routes.py`, `api/translation_routes.py`, and
   `api/folder_types.py` own the formerly mixed utility route families.
 - `model_policies.py` owns shared backend rename and protected-category policy.
@@ -294,7 +296,8 @@ covered by the `styles.css` manifest.
   seeking, search, paging, download and deletion, showing the speech/voice/seed
   recorded in each file, plus a section for unsaved temp previews that can be
   copied into `output/audio/`.
-- `ui_sidebar.js` assembles the browser window (rail, list column, header, page panels)
+- `ui_sidebar.js` assembles the browser window (rail, list column, header, page panels;
+  `remote_view.js` adds the header's "view only" chip when opened from another device)
   and renders the model folder list. `ui_shell_rail.js` owns the left icon rail: one
   entry per page, the tool slots and the settings slot. `ui_shell_nav.js` owns page
   navigation (`goTo`): the domain each page needs, which pages have a list and whether
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 61390d2..a23edf3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # 📈 Anomalous Model Browser Changelog
 
+## v1.58.1 Beta (Security: only this computer can change things) — 2026-10-12
+
+### 🔒 Other devices can look, not change (别的设备只能看，不能改)
+- When ComfyUI is started with `--listen`, other devices on your network can open it. Until now they could also use most of Anomalous Model Browser's actions: delete or rename models, save and delete workflows, combos and prompts, start downloads and scans, export a backup of all your data, translate with your translation key, change settings, switch the plugin's version. Now every change answers only the computer ComfyUI runs on; other devices can still browse models, pictures and workflows.
+- A window opened from another device shows **View only** next to the page title; pressing a button that changes something there says why it did nothing.
+- A web page that reaches ComfyUI through another name for this computer, or a proxy, counts as another device too.
+
 ## v1.58.0 Beta (New Layout, Keep & Reuse, Prompt Studio, Model Check, Voices) — 2026-10-09
 
 ### 🧭 New layout (新布局)
diff --git a/README.md b/README.md
index b9ff8f2..f1e48cf 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@
 
 [![ComfyUI Manager](https://img.shields.io/badge/ComfyUI-Manager-green?style=for-the-badge&logo=comfyui)](https://github.com/ltdrdata/ComfyUI-Manager)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow?style=for-the-badge)](LICENSE)
-[![Changelog](https://img.shields.io/badge/📖_Changelog-v1.58.0_Beta-blue?style=for-the-badge)](CHANGELOG.md)
+[![Changelog](https://img.shields.io/badge/📖_Changelog-v1.58.1_Beta-blue?style=for-the-badge)](CHANGELOG.md)
 [![Bilibili Video](https://img.shields.io/badge/Bilibili-视频演示-00A1D6?style=for-the-badge&logo=bilibili)](https://www.bilibili.com/video/BV1a1bv68EuA/)
 [![YouTube Video](https://img.shields.io/badge/YouTube-Video_Demo-red?style=for-the-badge&logo=youtube)](https://youtu.be/hAvsj7uiaCw)
 
diff --git a/api/__init__.py b/api/__init__.py
index 5cea44a..c8571e0 100644
--- a/api/__init__.py
+++ b/api/__init__.py
@@ -1,7 +1,7 @@
 from . import (
     activity_log, audio_catalog, folder_types, gallery_routes, materials, media_routes, model_catalog,
     model_media, model_metadata, model_resolution, model_type_listing, kept_images, node_material, recipe_packages, recipes, scan_report, scan_summary,
-    translation_routes, version_manager,
+    local_guard, translation_routes, version_manager,
 )
 from .scanner import *
 from .config import *
@@ -29,6 +29,10 @@ async def no_cache_extension_middleware(request, handler):
 def setup_routes(app):
     if hasattr(app, 'middlewares') and no_cache_extension_middleware not in app.middlewares:
         app.middlewares.append(no_cache_extension_middleware)
+    # Other devices on the network may look; only this computer may change things (local_guard.py).
+    if hasattr(app, 'middlewares') and local_guard.local_only_middleware not in app.middlewares:
+        app.middlewares.append(local_guard.local_only_middleware)
+    app.router.add_get('/anomalous/access', local_guard.api_access)
     app.router.add_get('/anomalous/folders', model_catalog.api_get_folders)
     app.router.add_get('/anomalous/all_folder_types', folder_types.api_get_all_folder_types)
     app.router.add_get('/anomalous/models', model_catalog.api_get_models)
diff --git a/api/local_guard.py b/api/local_guard.py
new file mode 100644
index 0000000..da26fca
--- /dev/null
+++ b/api/local_guard.py
@@ -0,0 +1,82 @@
+"""What only this computer may do. ComfyUI started with --listen lets other devices on the
+network open the page: they may look (lists, searches, pictures, covers), but every change
+under /anomalous/ (writing, moving and deleting files, downloads, scans, translations, backups,
+version switches, saved settings) answers only requests from the computer ComfyUI runs on
+(AGENTS.md 安全底线, rule 4). One middleware decides it for all routes: a request other than
+GET is local-only unless it is a read sent as POST (OPEN_POSTS); a GET is open unless it is not
+a plain read (LOCAL_GETS). A request is local when it comes from a loopback address, through no
+proxy, naming a loopback host; checking the Host also keeps out a page that reached this server
+under another name (DNS rebinding)."""
+
+import ipaddress
+import urllib.parse
+
+from aiohttp import web
+
+PREFIX = "/anomalous/"
+PROXY_HEADERS = ("Forwarded", "X-Forwarded-For", "X-Real-IP", "X-Forwarded-Host")
+LOCAL_NAMES = ("localhost",)
+# Reads sent as POST (their lists are long): open to other devices too. They write nothing.
+OPEN_POSTS = frozenset({
+    "/anomalous/resolve_paths_to_previews",
+    "/anomalous/resolve_hash_batch",
+    "/anomalous/inspect_image_material",
+})
+# GETs that are more than a read: a backup of all your data, a call to GitHub, your folders.
+LOCAL_GETS = frozenset({
+    "/anomalous/backup/file",
+    "/anomalous/version/releases",
+    "/anomalous/import/folders",
+})
+# Routes that answer other devices themselves (MCP replies in JSON-RPC).
+OWN_CHECK = frozenset({"/anomalous/mcp"})
+READS = ("GET", "HEAD", "OPTIONS")
+MESSAGE = ("只能在运行 ComfyUI 的电脑上操作，别的设备只能浏览。"
+           " Only the computer ComfyUI runs on can do this; other devices can only look.")
+
+
+def loopback_host(name):
+    if not name:
+        return False
+    name = name.strip("[]").lower()
+    if name in LOCAL_NAMES:
+        return True
+    try:
+        return ipaddress.ip_address(name).is_loopback
+    except ValueError:
+        return False
+
+
+def is_local(request):
+    """The request comes from this computer, directly, and names a loopback host."""
+    if not loopback_host(request.remote or ""):
+        return False
+    if any(header in request.headers for header in PROXY_HEADERS):
+        return False
+    return loopback_host(urllib.parse.urlsplit("//" + request.headers.get("Host", "")).hostname)
+
+
+def needs_local(method, path):
+    """Whether a request to `path` with `method` must come from this computer."""
+    if not path.startswith(PREFIX) or path in OWN_CHECK:
+        return False
+    if method.upper() in READS:
+        return path in LOCAL_GETS
+    return path not in OPEN_POSTS
+
+
+def refusal():
+    return web.json_response({"status": "error", "success": False, "error": "local_only", "code": "local_only",
+                              "message": MESSAGE}, status=403)
+
+
+@web.middleware
+async def local_only_middleware(request, handler):
+    if needs_local(request.method, request.path) and not is_local(request):
+        return refusal()
+    return await handler(request)
+
+
+async def api_access(request):
+    """GET /anomalous/access - whether this page may change things: {"local": bool}."""
+    return web.json_response({"local": is_local(request)})
diff --git a/docs/architecture/backend.md b/docs/architecture/backend.md
index d5ea217..424f829 100644
--- a/docs/architecture/backend.md
+++ b/docs/architecture/backend.md
@@ -40,6 +40,20 @@ inventory recognizes GGUF and PTH case-insensitively in addition to the existing
 list formats. This route-level inventory does not expand global model-format,
 scanner, metadata-parser, recovery, or cloud-identification support.
 
+## Requests from other devices
+
+ComfyUI started with `--listen` lets other devices on the network open the page. They may
+look; every change under `/anomalous/` answers only the computer ComfyUI runs on. One
+middleware (`api/local_guard.py`, registered first in `setup_routes`) decides it for all routes:
+a request other than GET must be local unless its path is in `OPEN_POSTS` (reads sent as POST:
+`resolve_paths_to_previews`, `resolve_hash_batch`, `inspect_image_material`); a GET is open
+unless its path is in `LOCAL_GETS` (`backup/file`, `version/releases`, `import/folders`).
+`/anomalous/mcp` answers other devices itself. Local means: a loopback peer, no proxy headers
+(`Forwarded`, `X-Forwarded-For`, `X-Real-IP`, `X-Forwarded-Host`) and a loopback `Host`, so a
+page that reached the server under another name (DNS rebinding) is refused too. A refusal is
+HTTP 403 with `code: local_only` and a bilingual message. `GET /anomalous/access` tells the page
+whether it is local; `remote_view.js` then shows a "view only" chip in the header.
+
 ## Storage ownership
 
 Runtime UI settings and newly stored API keys live in `api/config.json`.
diff --git a/web/modules/locales.js b/web/modules/locales.js
index 7c52012..dce6f13 100644
--- a/web/modules/locales.js
+++ b/web/modules/locales.js
@@ -571,6 +571,8 @@ export const i18n = {
         detailBackAssistant: '⬅ 返回助手面板',
         detailJumpToBottom: '跳到底部',
         detailEdit: '编辑',
+        remoteViewChip: '仅浏览',
+        remoteViewHint: '这个窗口是从别的设备打开的：可以浏览；删除、移动、下载、扫描、保存这类改动，只能在运行 ComfyUI 的电脑上做。',
         detailNotesTitle: '📓 专属备注 (Notes)',
         detailEditNotes: '编辑备注',
         detailGeneratedGallery: '查看历史生成作品',
@@ -2467,6 +2469,8 @@ export const i18n = {
         detailBackAssistant: '⬅ Back to Assistant',
         detailJumpToBottom: 'Jump to bottom',
         detailEdit: 'Edit',
+        remoteViewChip: 'View only',
+        remoteViewHint: 'This window was opened from another device: you can look around; deleting, moving, downloading, scanning, saving and other changes can only be made on the computer ComfyUI runs on.',
         detailNotesTitle: '📓 Custom Notes',
         detailEditNotes: 'Edit Notes',
         detailGeneratedGallery: 'View Generated Gallery',
diff --git a/web/modules/remote_view.js b/web/modules/remote_view.js
new file mode 100644
index 0000000..ad62f83
--- /dev/null
+++ b/web/modules/remote_view.js
@@ -0,0 +1,24 @@
+/**
+ * Opened from another device (ComfyUI started with --listen): a chip in the header says this
+ * window can look but not change anything (the server refuses changes from other devices,
+ * api/local_guard.py). Nothing shows on the computer ComfyUI runs on.
+ */
+
+import { translate as t } from './locales.js';
+
+/** Asks the server once whether this page is on its computer; when not, marks the window and adds the chip to `group`. */
+export async function markRemoteView(container, group) {
+    try {
+        const response = await fetch('/anomalous/access', { cache: 'no-store' });
+        const data = response.ok ? await response.json() : null;
+        if (!data || data.local !== false) return;
+    } catch {
+        return; // an older server without the route: nothing to say
+    }
+    container.classList.add('anomalous-remote-view');
+    const chip = document.createElement('span');
+    chip.className = 'anomalous-remote-chip';
+    chip.textContent = t('remoteViewChip');
+    chip.title = t('remoteViewHint');
+    group.append(chip);
+}
diff --git a/web/modules/ui_sidebar.js b/web/modules/ui_sidebar.js
index 50d1920..ca88150 100644
--- a/web/modules/ui_sidebar.js
+++ b/web/modules/ui_sidebar.js
@@ -3,6 +3,7 @@
  * The browser window (rail, list column, header, page panels) and the model folder list.
  */
 
+import { markRemoteView } from './remote_view.js';
 import { translate } from './locales.js';
 import { escapeHtml } from './safe_dom.js';
 import { showUpdateGuide } from './ui_update_guide.js';
@@ -157,6 +158,7 @@ export function createDOM() {
 
         rightGroup.append(updateNoticeBtn, dockBtn, closeBtn);
         header.append(leftGroup, centerGroup, rightGroup);
+        markRemoteView(container, leftGroup); // opened from another device: "view only"
 
         this.grid = panel('anomalous-grid', '');
         this.detailPanel = panel('anomalous-detail');
diff --git a/web/styles.css b/web/styles.css
index 8ed73d6..1c36db0 100644
--- a/web/styles.css
+++ b/web/styles.css
@@ -13,7 +13,7 @@
 @import url("./styles/12-tts-setup.css?v=20261002-theme-1");
 @import url("./styles/13-script-director.css?v=20261002-voiceover-2");
 @import url("./styles/14-version-manager.css?v=20261002-theme-1");
-@import url("./styles/15-shell-rail.css?v=20261003-feedback-2");
+@import url("./styles/15-shell-rail.css?v=20261012-remote");
 @import url("./styles/16-activity.css?v=20261002-theme-1");
 @import url("./styles/17-model-types.css?v=20261002-theme-1");
 @import url("./styles/18-scan-page.css?v=20261003-folders-1");
diff --git a/web/styles/15-shell-rail.css b/web/styles/15-shell-rail.css
index 7434cb0..761ffb1 100644
--- a/web/styles/15-shell-rail.css
+++ b/web/styles/15-shell-rail.css
@@ -517,3 +517,16 @@
     color: var(--amb-btn-primary-text);
     font-weight: 600;
 }
+
+/* Opened from another device (remote_view.js): a quiet "view only" chip beside the page title. */
+.anomalous-remote-chip {
+    flex-shrink: 0;
+    margin-left: 8px;
+    padding: 2px 9px;
+    border: 1px dashed var(--amb-border-strong);
+    border-radius: 999px;
+    color: var(--amb-text-muted);
+    font-size: 11.5px;
+    white-space: nowrap;
+    cursor: help;
+}