Codex SHIP-WITH-FIXES: non-done terminal paths (apperror/cancel/stream-error
finalize) didn't clear _STREAM_WAS_HIDDEN, so a stale wasHidden=true could be
inherited by a later same-sid reconnect -> spurious notification. Make each
entry stream-owned ({streamId, wasHidden}) so a stale entry from a prior stream
is never trusted (reconnect keeps state only when streamId matches; done reads
via the owned entry), and add _clearStreamHidden(activeSid, streamId) on the
apperror/cancel/finalize-fallback terminal paths (belt-and-suspenders).
A background tab's SSE is throttled by Chromium, so the stream 'done' event
arrives late (after the user returns, document.hidden=false) and the
response-complete notification was suppressed by the live visibility check.
Track per-stream whether the tab was hidden at ANY point during the stream
(_STREAM_WAS_HIDDEN, set at attach, OR'd by one idempotent visibilitychange
listener, read+cleared at done) and pass forceHidden accordingly.
sendBrowserNotification bypasses ONLY the live visibility gate on forceHidden,
still honoring the user's notifications-enabled setting — so a watched stream
stays silent (matches Slack/Discord/Gmail/Claude) but a backgrounded one
notifies. Correct fix for the #4416 root cause; supersedes #4421's always-fire
approach (which would also fire when the tab was never hidden).
Co-authored-by: bergeouss <bergeouss@users.noreply.github.com>
Gate-found (Opus SHIP-WITH-FIXES; Codex SAFE — split resolved by reading the
contract: no dropped-turn, but a real transient start-race flicker). #4424
removed the _sendInProgress guards entirely; that re-opened the #2689 start-race
SYMPTOM for the one session mid-send (a /api/sessions poll landing during the
/api/chat/start round-trip would blank the just-sent bubble + queue a spurious
force-reload). Re-add the guard SCOPED to sid===_sendInProgressSid only, in both
_reconcileActiveSessionIdleStateFromList and _purgeStaleInflightEntries — a
long-hung session has _sendInProgress===false so it still gets unstuck (#4354),
only the in-flight start window is protected. Also fixes Opus's test-masking
finding: test_inflight_send_start_race now strips JS comments before asserting +
requires a real , so a comment can't green-light the #2689 guard, and
adds coverage for the reconcile path.
Co-authored-by: bergeouss <bergeouss@users.noreply.github.com>
Gate-found (Codex CORE, repro'd): a hardlink at a clean *.md page name can
carry an arbitrary inode (incl. one outside the wiki) through the O_NOFOLLOW +
inode-identity read check — O_NOFOLLOW does not block hardlinks. Reject any
page file with st_nlink > 1 in BOTH the allowlist walk and the read-path
revalidation. Pre-existing on master (the inode recapture predates this PR's
cache); closing it here while on the read path. +1 toothed regression test
(prime cache -> hardlink listed page to outside secret -> assert 404, no leak).
Co-authored-by: rodboev <rodboev@users.noreply.github.com>