Files
orca/mobile/src/host-screen
Jinwoo Hong 686c38590b perf(runtime): stop re-sending the worktree list to mobile pollers on every terminal chunk (#28062)
* perf(runtime): let worktree.ps pollers opt out of per-chunk activity churn

worktree.ps carries `preview` and an exact `lastOutputAt` on every row, both
of which move on each PTY chunk, so the content-addressed snapshot id changed
on every poll while any agent printed and the whole catalog was resent.

Add an optional `coarseActivity: true` param. When set, the host drops
`preview` and floors `lastOutputAt` to 30 s before hashing, so the id holds
while only chunk-level activity moves. Callers without the param get the
byte-identical response they get today; older hosts strip the unknown key.

Claude-Session: https://claude.ai/code/session_01JNnE9qzUZMMnqpZWCqM3nb

* perf(mobile): stop re-sending the worktree list on every terminal chunk

The host-screen snapshot poll now asks worktree.ps for `coarseActivity`, so
the catalog's snapshot id survives terminal output and the 3 s poll gets a
tiny `unchanged` reply instead of the whole catalog. `preview` is optional on
mobile rows because a coarse host leaves it out; old hosts ignore the param
and keep sending it.

Re-records the three worktree.catalog-snapshot goldens; the only semantic
change is the new request param.

Claude-Session: https://claude.ai/code/session_01JNnE9qzUZMMnqpZWCqM3nb

* perf(runtime): coarsen worktree.ps activity for every snapshot poller

Drop the `coarseActivity` param: the only caller that sends
`afterSnapshotId` is the mobile snapshot poll, which never renders
`preview` and uses `lastOutputAt` only to rank rows. Snapshot polls now
always get a blank `preview` and a 30 s-floored `lastOutputAt`, so
already-shipped apps stop re-downloading the catalog on every terminal
chunk with only a desktop update. Callers without `afterSnapshotId`
still get the byte-identical response.

Reverts the mobile param, its scenario steps and the three re-recorded
goldens, and removes the unread `preview` field from mobile row types.

Claude-Session: https://claude.ai/code/session_01JNnE9qzUZMMnqpZWCqM3nb

* fix(runtime): rank coarsened worktree.ps rows so in-bucket swaps keep the snapshot id

Claude-Session: https://claude.ai/code/session_01JNnE9qzUZMMnqpZWCqM3nb

* test: drop preview from row fixtures and keep the runtime cast on one line

Claude-Session: https://claude.ai/code/session_01JNnE9qzUZMMnqpZWCqM3nb
2026-10-12 21:29:01 -04:00
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