Check WebBridge daemon + browser extension connection. Call first if unsure whether the bridge is ready.

Open or navigate to a URL in the real browser. First call of a task should pass group_title. Use newTab:true when pages should coexist.

Browser history back (Claude-in-Chrome style navigation helper).

Browser history forward.

Reload the current page. hard:true bypasses cache when CDP allows.

Select a tab as current. URL match is fuzzy within the session (trailing slash/query tolerant). active:true borrows the focused session tab when possible.

List tabs belonging to the current session (tab group).

Close the current tab in the session.

Close ALL tabs in the session/group. Only when the user asks to clear agent tabs.

Accessibility tree with @e refs (like Claude read_page). Prefer before click/fill.

Extract visible page text (like Claude get_page_text). Better than full snapshot for articles.

Search the accessibility tree by text/role (like Claude find). Returns matching @e refs when present.

Wait until text appears, CSS selector matches, or document is ready (timeout).

Click an element (@e ref preferred, or CSS). By default, if the click opens a new session tab, switches current tab to it (Bilibili 动态/收藏 style).

Clear-and-fill input/textarea/contenteditable. selector = @e or CSS.

Press a key or combo on the focused element (e.g. Enter, Escape, Tab, Control+A). Like Claude press_key.

Scroll page or element into view. direction: up|down|left|right, or x/y deltas, or selector/@e into view.

Run JavaScript in the page. Prefer compact JSON.stringify returns. Wrap multi-call state in an IIFE.

Screenshot current tab (or selector). Default format=jpeg for reliability; auto-retries smaller jpeg on timeout. Returns path; embeds image when under size cap. Errors include problem+hint.

Capture/list network requests. cmd: start | stop | list | detail.

Capture page console / errors (Claude-style). cmd: start (install interceptor) | list | clear | stop.

Set files on a file input element. files must be absolute local filesystem paths (not http/data URLs). Page must already show .