io.github.ObscuritySRL/bun-uia
MCPby ObscuritySRL · v1.9.1
Playwright for the Windows desktop, from Bun — drive native GUIs via UI Automation + MCP.
MCP configuration
Command
Environment
BUN_UIA_PROFILECapability profile: 'readonly' (inspect/read only), 'safe' (read + input + window — default), or 'full' (also os + fs tools).
BUN_UIA_OSSet 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_ALLOWComma-separated tool names or categories to additionally allow on top of the profile.
BUN_UIA_DENYComma-separated tool names or categories to deny, overriding the profile and BUN_UIA_ALLOW.
BUN_UIA_CURSORSet 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_ROOTSandbox root directory that read_file/write_file/list_dir are confined to when fs tools are enabled.
Install in one click with Zurek
Browse here, install from the native macOS app — pick targets, fill env vars, and write configs safely.