diff --git a/marketplace.json b/marketplace.json
index b988fe5..9aef1d0 100644
--- a/marketplace.json
+++ b/marketplace.json
@@ -94,7 +94,7 @@
         "en": "Automated video editing toolkit: standard cloud speech transcription and synthesis, full video frame extraction and understanding, local re-inspection, timeline, preview rendering, QC, and TTS.",
         "zh-CN": "自动化视频剪辑工具包: 标准云端语音转录与合成、完整视频抽帧理解、局部复看、时间线、预览渲染、QC 和 TTS。"
       },
-      "version": "0.4.3",
+      "version": "0.4.5",
       "author": {
         "name": "Z.ai",
         "url": "https://z.ai"
diff --git a/plugins/video-agent-kit/.claude-plugin/plugin.json b/plugins/video-agent-kit/.claude-plugin/plugin.json
index c0c93df..6bba17c 100644
--- a/plugins/video-agent-kit/.claude-plugin/plugin.json
+++ b/plugins/video-agent-kit/.claude-plugin/plugin.json
@@ -1,6 +1,6 @@
 {
   "name": "video-agent-kit",
-  "version": "0.4.3",
+  "version": "0.4.5",
   "description": "自动化视频剪辑工具包: 标准云端语音转录与合成、完整视频抽帧理解、局部复看、时间线、预览渲染、QC 和 TTS。",
   "author": {
     "name": "Z.ai",
@@ -47,8 +47,9 @@
   "mcpServers": {
     "video-edit": {
       "type": "stdio",
-      "command": "python3",
+      "command": "node",
       "args": [
+        "${CLAUDE_PLUGIN_ROOT}/hooks/run_python.mjs",
         "${CLAUDE_PLUGIN_ROOT}/mcp/video_edit_server.py"
       ],
       "cwd": "${CLAUDE_PROJECT_DIR}",
diff --git a/plugins/video-agent-kit/.mcp.json b/plugins/video-agent-kit/.mcp.json
index 0138aa6..545032a 100644
--- a/plugins/video-agent-kit/.mcp.json
+++ b/plugins/video-agent-kit/.mcp.json
@@ -2,8 +2,9 @@
   "mcpServers": {
     "video-edit": {
       "type": "stdio",
-      "command": "python3",
+      "command": "node",
       "args": [
+        "${CLAUDE_PLUGIN_ROOT}/hooks/run_python.mjs",
         "${CLAUDE_PLUGIN_ROOT}/mcp/video_edit_server.py"
       ],
       "cwd": "${CLAUDE_PROJECT_DIR}",
diff --git a/plugins/video-agent-kit/.zcode-plugin/plugin.json b/plugins/video-agent-kit/.zcode-plugin/plugin.json
index a6179d5..6d28cd1 100644
--- a/plugins/video-agent-kit/.zcode-plugin/plugin.json
+++ b/plugins/video-agent-kit/.zcode-plugin/plugin.json
@@ -1,6 +1,6 @@
 {
   "name": "video-agent-kit",
-  "version": "0.4.3",
+  "version": "0.4.5",
   "description": "自动化视频剪辑工具包: 标准云端语音转录与合成、完整视频抽帧理解、局部复看、时间线、预览渲染、QC 和 TTS。",
   "author": {
     "name": "Z.ai",
@@ -35,8 +35,9 @@
   "mcpServers": {
     "video-edit": {
       "type": "stdio",
-      "command": "python3",
+      "command": "node",
       "args": [
+        "${CLAUDE_PLUGIN_ROOT}/hooks/run_python.mjs",
         "${CLAUDE_PLUGIN_ROOT}/mcp/video_edit_server.py"
       ],
       "cwd": "${CLAUDE_PROJECT_DIR}",
diff --git a/plugins/video-agent-kit/README.md b/plugins/video-agent-kit/README.md
index 4da1bd8..6491565 100644
--- a/plugins/video-agent-kit/README.md
+++ b/plugins/video-agent-kit/README.md
@@ -51,7 +51,7 @@ skills/video-recap-workflows/SKILL.md
 处理完整电影/赛事/比赛回放的解说剪辑；`env-setup` 只管环境（体检 + 装依赖，
 跨 macOS / Windows / Linux），不碰剪辑任务。
 
-首次使用前装环境（推荐走体检脚本，它跨 macOS / Windows / Linux 且默认用国内镜像）：
+首次使用前装环境（推荐走体检脚本，它跨 macOS / Windows / Linux 且默认用国内镜像）。运行插件 Hook 和 `video-edit` MCP server 的前置条件是：宿主环境中可从 `PATH` 解析到 `node`，并安装 Python 3.10+：
 
 ```bash
 # 只体检：逐项报"要什么 / 缺了挂哪个能力 / 本平台怎么装"
@@ -68,6 +68,12 @@ python3 video-agent-kit/skills/env-setup/scripts/env_doctor.py --fix
 真覆盖中文（`fc-match` 对着没装的中文族会返回 DejaVu，烧出来是豆腐块而 ffmpeg
 退出码 0）、以及语音走的是哪条通道（在 ZCode 里就是"官方通道，本地无需 key"，不会催你配凭据）。
 
+Hook 和 `video-edit` MCP server 通过插件内置的 `hooks/run_python.mjs` 启动 Python，
+不会把宿主平台固定为 `python3`：Windows 优先使用 `py -3` / `python`，macOS、Linux
+优先使用 `python3` / `python`。入口命令使用宿主环境中位于 `PATH` 的 `node`；ZCode
+不会为第三方插件提供独立的 Node.js。请确保 Node.js 和 Python 3.10+ 都已安装。解析器
+只在解释器不存在时尝试下一个候选，脚本本身的退出码会原样返回。
+
 也可以手工只装 Python 依赖（注意 `scenedetect` 必须 `--no-deps`，否则会把 GUI 版
 opencv 盖到 `opencv-python-headless` 的 `cv2` 上，两个包一起坏）：
 
diff --git a/plugins/video-agent-kit/hooks/hooks.json b/plugins/video-agent-kit/hooks/hooks.json
index d79aa8a..0982431 100644
--- a/plugins/video-agent-kit/hooks/hooks.json
+++ b/plugins/video-agent-kit/hooks/hooks.json
@@ -6,7 +6,7 @@
         "hooks": [
           {
             "type": "command",
-            "command": "python3 \"${CLAUDE_PLUGIN_ROOT}/hooks/env_check.py\"",
+            "command": "node \"${CLAUDE_PLUGIN_ROOT}/hooks/run_python.mjs\" \"${CLAUDE_PLUGIN_ROOT}/hooks/env_check.py\"",
             "timeout": 30,
             "statusMessage": "video-agent-kit environment check..."
           }
@@ -18,7 +18,7 @@
         "hooks": [
           {
             "type": "command",
-            "command": "python3 \"${CLAUDE_PLUGIN_ROOT}/hooks/check_video_input.py\"",
+            "command": "node \"${CLAUDE_PLUGIN_ROOT}/hooks/run_python.mjs\" \"${CLAUDE_PLUGIN_ROOT}/hooks/check_video_input.py\"",
             "timeout": 15
           }
         ]
@@ -29,7 +29,7 @@
         "hooks": [
           {
             "type": "command",
-            "command": "python3 \"${CLAUDE_PLUGIN_ROOT}/hooks/check_closeout.py\"",
+            "command": "node \"${CLAUDE_PLUGIN_ROOT}/hooks/run_python.mjs\" \"${CLAUDE_PLUGIN_ROOT}/hooks/check_closeout.py\"",
             "timeout": 15
           }
         ]
diff --git a/plugins/video-agent-kit/hooks/run_python.mjs b/plugins/video-agent-kit/hooks/run_python.mjs
new file mode 100644
index 0000000..3a57bfc
--- /dev/null
+++ b/plugins/video-agent-kit/hooks/run_python.mjs
@@ -0,0 +1,62 @@
+#!/usr/bin/env node
+/**
+ * Run a plugin Python entrypoint with the interpreter names used by each OS.
+ *
+ * Python's Windows launcher is preferred there because the official installer
+ * does not create a `python3` command. The first interpreter that exists is
+ * used; a real script failure is returned unchanged instead of being retried
+ * with another interpreter.
+ */
+
+import { spawnSync } from "node:child_process";
+
+const [script, ...scriptArgs] = process.argv.slice(2);
+
+if (!script) {
+  process.stderr.write("Usage: run_python.mjs <script> [...args]\n");
+  process.exit(2);
+}
+
+const candidates =
+  process.platform === "win32"
+    ? [
+        ["py", ["-3"]],
+        ["python", []],
+        ["python3", []],
+      ]
+    : [
+        ["python3", []],
+        ["python", []],
+      ];
+
+for (const [command, prefixArgs] of candidates) {
+  let result;
+  try {
+    result = spawnSync(command, [...prefixArgs, script, ...scriptArgs], {
+      env: process.env,
+      stdio: "inherit",
+    });
+  } catch (error) {
+    if (error?.code === "ENOENT") continue;
+    process.stderr.write(`[video-agent-kit] failed to start ${command}: ${error}\n`);
+    process.exit(1);
+  }
+
+  if (result.error?.code === "ENOENT") continue;
+  if (result.error) {
+    process.stderr.write(`[video-agent-kit] failed to start ${command}: ${result.error}\n`);
+    process.exit(1);
+  }
+
+  if (result.signal) {
+    process.stderr.write(`[video-agent-kit] ${command} exited via ${result.signal}\n`);
+    process.exit(1);
+  }
+
+  process.exit(result.status ?? 1);
+}
+
+process.stderr.write(
+  "[video-agent-kit] Python 3.10+ was not found; install Python and retry.\n",
+);
+process.exit(127);