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browser_visible

Configure browser startup with a visible or hidden window, and optionally open a local debugging port for another tool to connect. The skill explains launch parameters, compatibility behavior, and when a browser restart is required.

OriginalShow the original description

Use this skill when the user needs to control the browser launch mode for browser. By default browser is managed by Playwright and opens no debugging port (pass an explicit `cdp_port` to let another local tool attach); `headed` controls whether the window is visible, and `private_mode` is kept for backward compatibility and no longer changes the default.

agentscope-ai/QwenPaw
Works withPlaywright
See how to install

Good for

  • Show the browser window during automated work
  • Open a local debugging port for another tool
  • Check the behavior of older launch parameters
  • Change visibility or launch mode for a running browser

Files included (1)

  • SKILL.md2.1 KB

SKILL.md (original)

Review the instructions the agent will receive before you install.

Deprecated: This reference supports the stable browser implementation. hatch. Prefer the unified browser tool when experimental mode is enabled.

Browser Launch Modes

browser.start launch modes:

  • Default: Playwright-managed, no debugging port
  • cdp_port=N: managed CDP, opens a local debugging port so other local tools can attach (see the browser_cdp skill)
  • private_mode=true: same as the default, kept for backward compatibility

Parameter meanings:

  • headed: whether to display the browser window
  • private_mode: kept for backward compatibility; it no longer changes the launch mode

The two parameters are independent and can be freely combined.

Common Usage

Default launch:

{"action": "start"}

Open a visible window:

{"action": "start", "headed": true}

private_mode

Already the default behavior — do not set it. The parameter is kept only so that older calls keep working, and passing it together with cdp_port is rejected.

Notes

  • The default is Playwright-managed with no debugging port
  • The launch mode is entirely determined by the call parameters
  • Managed CDP requires Chrome / Chromium / Edge to be installed locally
  • When the user manually operates the visible browser, the idle timer may not be refreshed
  • private_mode is an explicit parameter for each start call and is not persisted
  • If a browser is already running, you must stop it and then start again to switch launch modes or window visibility
  • Visible mode occupies the desktop and requires a graphical environment; it may not work on servers or headless environments

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