Window

GUI4CLI writes a temp folder (index.html, app.js, payload) and starts windowd.

What you see

A two-column window (~960×620): fields on the left, command preview and live output on the right.

Tab through fields
Ctrl/Cmd+Enter to Run
Stdout and stderr stream while the process is alive
Exit code and duration when it finishes
Cancel kills the child tree (Windows: taskkill /T /F)

Last-run values are saved locally in ~/.gui4cli/lastrun/ and prefilled next time. Each script gets a JSON file named from a hash of its path. Every field is stored, including path fields. Nothing is treated as a secret, and the files are not encrypted. Do not type passwords you would not leave on disk. There is no control in the window to forget a value. Delete that JSON file, or the folder, to clear remembered values.

Invocation

Run spawns process.execPath (your Node) with the original script and the built argv. The working directory is the script directory. The preview string is that same command, with spaces quoted. Cancel kills the child tree (Windows: taskkill /T /F). Stdout, stderr, and the exit code stay in the window. Native file pickers are not part of this tool.

First launch

windowd downloads the NW.js runtime (~200 MB) the first time. After that, the window opens from cache.

If the window flashes and closes:

Run from a normal terminal, not Cursor's JavaScript Debug Terminal. Inspector env (NODE_OPTIONS, VSCODE_INSPECTOR_OPTIONS) inherited by NW.js will shut the window down. GUI4CLI strips those for the child; a leftover --require bootloader still bites sometimes.
Generated apps disable Vite HMR. The first HMR reload fires windowd's beforeunload close signal.
If windowd exits within 5 seconds with code 0, GUI4CLI opens once more and says so.

Status

The window reports ready / running / streaming / done / failed. It does not sit on a frozen form while the script runs.

The window is a windowd app, not a browser tab and not a packaged .exe. Neutralino and Tauri are later.