I think we got winwatch.c from the list, don't know from whom actually (sorry).
But here's a man page that I think was missing.


..TH WINWATCH 1 
..SH NAME
winwatch \- window watcher.
..SH SYNOPSIS
..B winwatch
[
..B -f
..I font
]
..SH DESCRIPTION
..I Winwatch
draws a pannel with the list of windows that exist. It pools
..IR rio (4)
to update the list. A click with mouse button 3 in a window
name makes it visible and raises it.
The optional
..B -f
flag selects the font used to display the window names.
..SH SOURCE
..B /sys/src/cmd/winwatch.c
..SH BUGS
There should be a way to ask
..I winwatch
to omit certain windows from the list. It should not show itself.