bun-win32

Playwright for the Windows desktop, from Bun — drive native GUIs via UI Automation + MCP.

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★ 21 stars Last pushed 2026-10-13

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Review any command before running it. Package names and URLs come from the server's own registry entry.

npx -y [email protected]

Or add to your MCP client config:

{
  "mcpServers": {
    "bun-win32": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ]
    }
  }
}

BUN_UIA_PROFILE — Capability profile: 'readonly' (inspect/read only), 'safe' (read + input + window — default), or 'full' (also os + fs tools).
BUN_UIA_OS — Set to '1' to allow OS-level tools (launch_app, run_program, open_path) AND filesystem tools (read_file, write_file, list_dir) regardless of profile.
BUN_UIA_ALLOW — Comma-separated tool names or categories to additionally allow on top of the profile.
BUN_UIA_DENY — Comma-separated tool names or categories to deny, overriding the profile and BUN_UIA_ALLOW.
BUN_UIA_CURSOR — Set to 'never' to forbid the real-cursor fallback entirely (strictly cursor-free). By default clicks/drags are cursor-free but fall back to the real hardware cursor when no cursor-free path exists.
BUN_UIA_FS_ROOT — Sandbox root directory that read_file/write_file/list_dir are confined to when fs tools are enabled.