Hane Cowork
Use your everyday Chrome
Connect your everyday Chrome to Hane Cowork with the extension, share tabs, attach page text, and let work on this PC operate shared pages.
This page explains how to connect the Chrome you use every day to Cowork and use shared tabs in your requests. It covers attaching page text, letting work on this PC read and operate pages, and the on-page operation display and stop button.
Who does what
Section titled “Who does what”| Where | What it does |
|---|---|
| Cowork app | Requests, conversations, history, and file attachments. Fetching page text and directing actions from the harness |
| Chrome extension | Connecting to Cowork, sharing and unsharing tabs, operating pages, and showing what is happening on the page |
The extension has no chat or side panel. Requests are sent from the Cowork app. Chrome 120 or later is required.
Connecting
Section titled “Connecting”-
In Cowork, open 「機能と接続 → Chrome」 (Features and connections → Chrome) and press 「接続を設定」 (Set up connection). Keep Cowork running afterwards.
-
Press 「拡張機能のフォルダを開く」 (Open extension folder). On Chrome’s extensions page (
chrome://extensions), turn on developer mode and load the folder that opened. -
Open the Hane Cowork extension from the Chrome toolbar and press 「Cowork に接続」 (Connect to Cowork).
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Open the tab you want to use and press 「このタブを共有」 (Share this tab) in the extension. The 「Chrome」 tab in Cowork shows the connected Chrome and the number of shared tabs.
Connecting alone does not collect tab contents or browsing history. Cowork handles only the title and URL of tabs you share. To stop sharing, press 「共有をやめる」 (Stop sharing) in the extension.
Attaching page text
Section titled “Attaching page text”Press the globe button in the request box (「Chrome のページを添付する」, Attach a Chrome page) and choose 「このページを添付」 (Attach this page) for a shared page. Cowork reads the text at that moment and attaches it to the draft as text.
- Only text visible on the page is captured (up to 100,000 UTF-16 code units). Hidden text and input field values, including passwords, are excluded.
- Images, canvas, and embedded documents (iframes) are not included.
- Nothing is sent to Platform until you send. You can open the attached text to check it before sending (Attaching files).
Operating pages from work on this PC
Section titled “Operating pages from work on this PC”If the organization policy sets 「Chrome の操作」 (Chrome actions) to allow or confirm, the harness can use shared tabs in work on this PC.
| Action | Organization policy |
|---|---|
| Check shared tabs, read a page, click, scroll | Chrome actions |
| Type into a page | Chrome actions and external transfer (the stricter rule applies) |
Only tabs you shared can be operated. Input you are typing in other tabs is left alone.
On-page display and stopping
Section titled “On-page display and stopping”While the harness operates a page, the page shows:
- A frame around the page and a description of the action (for example 「Hane Cowork がクリックしています」, Hane Cowork is clicking)
- A blue arrow pointing to where it clicks or types
- A 「停止」 (Stop) button
When an action finishes, a success or failure message stays briefly and then disappears. The display never includes the text being typed or credentials.
Pressing 「停止」 (Stop) on the page unshares the tab and cancels pending actions. To continue, share the tab again from the extension. The tab is also unshared if an action does not respond within 10 seconds.
Disconnecting
Section titled “Disconnecting”In Cowork, open 「機能と接続 → Chrome」 and press 「Chrome の接続を解除」 (Disconnect Chrome), then remove the extension from Chrome. Your Chrome profile, sign-ins, tabs, cookies, and history are not deleted.
The extension never receives Platform credentials. It talks to Cowork only inside your PC and authenticates with a secret that is regenerated every time Cowork starts.