An agent that arms a monitor, backgrounds a shell or hands a task to a
cloud session is told to end its turn. The pane then falls quiet, Claude
Code's idle_prompt notification arrives a minute later, and every surface
files the session under NEEDS YOU with nothing for a human to answer.
Claude states what it is still running on the last row of its screen
(`⏵⏵ bypass permissions on · 1 monitor · ← for agents`). That row is now
`capabilities.workDetect.watchingLine` in the CLI registry, guarded by
compileVersionRegex() like every other config regex, and the idle probe
reads it off the capture it already takes: `watchingLabel()` in
session-activity.ts searches the last five lines only, so a session that
PRINTS "1 monitor" is not mistaken for one running it.
The label lands on Session.watching and rides toLightDetailedState() out
to every surface. The phone overview, the desktop home rail and the rich
sidebar rows wear it as a `watching` badge in the accent colour, beside
the state pill and never in place of it: an agent can arm a monitor and
ask a question in the same breath, and only the pill says which.
Verified end to end against a throwaway session on an isolated beta
instance: the payload carried `watching: "1 monitor"` once the turn
ended, the badge rendered next to a yellow `waiting` pill, and both
cleared when the monitor died.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Post-merge follow-ups from the deep review of #334 and #335, so they ship in
the same release as the features.
Tab-layout foundation (#335):
- PUT /api/session-order drops unknown/foreign ids again instead of 400ing
the whole write, in both the owner and the admin path (single-user requests
are the synthetic admin, so that path is the one the browser hits). The
frontend debounces its reorder push and swallows errors, so a session
deleted inside the debounce window silently cost the user the entire
reorder - and the endpoint sits on the stable /api/v1 surface, where the
pre-layout server merged leniently.
- A failed mux restore no longer locks explicit deletions into 500s for the
process lifetime: runSessionDeletion and webviewDeleted degrade to
best-effort without layout coordination, while the automated stale sweep
(runStaleSessionCleanup) stays fail-closed.
- sse-events doc comment: no 'suppressed' hook event exists; hooks stay 8.
- registerSessionWithLayout resolves its owner through ownerLayoutKey()
instead of a hardcoded '@single'.
Vertical rail (#334) - all rail-awareness gaps in sidebar-only predicates,
unified behind the new _isVerticalTabList() (sidebar OR rail):
- Drag-reorder read the insertion side from clientX in the rail, so
before/after was effectively arbitrary on vertical rows; the drag-over
indicators now draw as top/bottom edges there like the sidebar's.
- The active tab is scrolled into view in the rail (Alt+N/palette selection
used to leave the row below the fold).
- Floating subagent/ultracode windows anchor to the RIGHT of rail tabs, and
the connector redraw gates (render tail + strip scroll) cover the rail.
- Server-seeded tabOrientation is applied when the async settings load
resolves, not only at boot, so a fresh device shows the rail immediately.
- The pre-paint script stamps data-tab-orientation and --tab-rail-width
(sidebar-wins and solo carve-outs included), removing the flash of the
header strip on every vertical-mode load.
- The session name font defaults to 12px, the sidebar's historical 0.75rem
size, so installs that never touch the new slider are not restyled.
Also documents the rail in CLAUDE.md (second #sessionTabs host, mover
ordering, the axis-predicate rule) and gives tab-rail-resize.js its
@dependency/@loadorder header. Full gate green (6093 tests); the excluded
browser suite was run by hand - only the known environmental failures
(opencode/codex binaries) remain, identical to pristine master.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
