diff --git a/zbw.d.ts b/zbw.d.ts
index 2f84260..18d6c68 100644
--- a/zbw.d.ts
+++ b/zbw.d.ts
@@ -56,6 +56,41 @@ declare namespace BrowserWindow {
     closeDevTools: () => void
     copy: () => void
     copyImageAt: (x: number, y: number) => void
+    /**
+     * 读取当前 webContents 关联 session 的 Cookie。
+     *
+     * 通过主进程 `session.fromPartition(partition).cookies.get()` 实现，
+     * 可读取 `document.cookie` 无法获取的 HttpOnly Cookie（如登录态 sessionid）。
+     *
+     * @example
+     * // 读取指定 URL 的所有 cookie（含 HttpOnly）
+     * const cookies = await win.webContents.cookies.get({ url: 'https://example.com' })
+     * const sessionId = cookies.find(c => c.name === 'sessionid')?.value
+     *
+     * @param filter 可选过滤条件，与 Electron Cookies.get filter 一致
+     */
+    cookies: {
+      get: (filter?: {
+        url?: string
+        name?: string
+        domain?: string
+        path?: string
+        secure?: boolean
+        session?: boolean
+        httpOnly?: boolean
+      }) => Promise<
+        Array<{
+          name: string
+          value: string
+          domain?: string
+          path?: string
+          secure?: boolean
+          httpOnly?: boolean
+          expirationDate?: number
+          sameSite?: 'unspecified' | 'no_restriction' | 'lax' | 'strict'
+        }>
+      >
+    }
     cut: () => void
     /**
      * @deprecated