ctbjrj/ai助手/zcode预置/内置插件/browser-use/README.md

Browser Use

The official built-in ZCode plugin for browser automation. It ships the browser-client bootstrap module, skills, and documentation/capability manifests; the node_repl MCP host that exposes the js tool lives in @zcode/node-repl-host.

What it provides

• js tool — served by the shared node_repl MCP host and seen by the model as mcp__node_repl__js. The host is shared with Computer Use, so its model-facing text is scoped to both official capabilities. Every js call starts in a fresh kernel; imports are limited to node:* builtins and absolute file:// URLs under the skill root.
• scripts/browser-client.mjs — explicitly bootstraps agent.browsers inside each fresh js kernel; BrowserControl tabs, not JavaScript globals, provide continuity.
• control-browser skill — tells the agent how to bootstrap and drive an advertised ZCode browser backend (Desktop IAB or CLI-managed headless CDP), select a browser and read browser.documentation() once, use the Playwright DOM snapshot→locator→act workflow, observe controlled and user tab registries together after a possible popup action, and request screenshots only for visual evidence.
• web-gui-tester skill — layers a pure-GUI black-box testing workflow on top of control-browser, requiring Browser Use semantic evidence plus inspected screenshots while respecting current console, upload, and runtime capability boundaries.

The IAB runtime is provided by the desktop host; the managed headless CDP runtime is provided only by an explicitly opted-in CLI process. The plugin assets define the model guidance and the effective runtime object graph; unsupported members are removed by the manifest interpreter instead of failing after invocation.