Quoth Jesse Rosenthal on Feb 29 at 10:05 am:
> On Sun, 26 Feb 2012 16:59:53 -0500, Tom Prince <tom.prince@ualberta.net> wrote:
> > It is probably overkill for any one feature, but it does seem like
> > something useful to have. So maybe it would be worthwhile to create
> > for this one feature, even it it is overkill.
> 
> I can think of other features where some layer like this would be
> useful. It would be great, for example, if it were possible to output
> search lines with recipients instead of senders, for the purposes of a
> "tag:sent" sort of window. 

What if the output of search (say, specifically the JSON format)
included information on each message in the thread such as the
'message' production from devel/schemata minus the body field?  Then
the frontend would have loads of information it could produce its own
summaries from.  (Plus, with a little tweaking, I don't think this
would be any more expensive than producing the current notmuch search
summary output.)