l0ng-ai 5b77b51a28 fix(tree-sync): collect the shells a window strands, from a census of its own panes ...

Closing a tab straight after making it stranded a live shell — six times out
of six, reproducibly. It holds a pty and an fd and runs until the machine
does not. A person cannot type that fast; an agent loop that opens a tab per
task and closes it when the task is done meets it on nearly every iteration,
which is the shape this product is built for.

The rule for judging a pane was already here and already right: one that no
window is showing and no workspace on the machine names is nobody's. Two
earlier attempts failed because of what was put in front of it. Both parked
panes at the *site* that dropped them, and the leak does not live at a site:
a hydration whose whole session is discarded never compares a before against
an after, so its panes were never offered for judgement at all.

So the window now keeps a census of every pane it has brought into existence,
taken at the one point both spawn routes meet, and judges the census rather
than a list of suspects.

The second half is when. The sweep ran only on a landing that rebuilt from a
full machine tree, and the failures do not lead there — a refused operation
calls `desync`, which primes, and a prime pulls this workspace's mirror
alone. Instrumented, the sweep did not run once across three cycles that
stranded three shells. It now also runs after a prime, and pays for the
machine-wide pull only when a censused pane is not on screen anywhere;
while everything the window made is still showing, that is one set
comparison and no request.

Measured against a live window, same reproducer, same machine:

  before   6 create-and-close cycles    6 stranded shells
  after   16 create-and-close cycles    0

and nothing else was harmed: four unrelated panes kept their ids and their
scrollback across ten churn cycles and a GUI restart, which is the failure
this has to be judged on — a leaked shell is recoverable with `pane close
--orphans`, a shell killed under a live window is not.

2026-08-23 09:29:33 +08:00

..

bin

docs(privacy): update.log is a file tty7 writes, so list it

2026-08-23 02:27:09 +08:00

core

fix(ssh-config): report a forward that cannot be imported, rather than dropping it

2026-08-23 02:59:18 +08:00

terminal

chore(lint): leave the workspace building without a warning

2026-08-22 16:52:40 +08:00

ui

fix(tree-sync): collect the shells a window strands, from a census of its own panes

2026-08-23 09:29:33 +08:00

daemon.rs

chore: strip every comment from the Rust sources (#268)

2026-07-30 21:36:15 +08:00

main.rs

fix(config): say what is wrong with a config file, and where

2026-08-23 06:05:50 +08:00

testutil.rs

test: finish the fixture cleanup, down to the ones a scope cannot own

2026-08-16 01:38:24 +08:00