* stage #4618 (allenliang2022): broaden streaming stale-compressor guard to any model-window mismatch + #4618 regression tests + CHANGELOG
Broadens #3256's default-only live-usage guard: the streaming SSE snapshot now
always resolves the real per-model window via the same helper GET /api/session
hydration uses (_context_length_lookup_inputs_for_model + get_model_context_length)
and corrects whenever it differs from the compressor's cached value, with a
TypeError fallback to the legacy 2-arg form. Fixes 'refresh shows 1M, send reverts
to stale 168k + early auto-compress' on model-switched sessions. Per-stream cache
preserved (one lookup/stream). Code byte-identical to PR head 3beb18e92d73.
Adds 4 source-structure regression tests (RED-proven on master).
Co-authored-by: allenliang2022 <allenliang2022@users.noreply.github.com>
* fix#4618 gate findings: profile-scoped config (Codex cross-profile) + #4248 256k acceptance gate (Opus downward-clobber)
Codex SHIP-WITH-FIXES: live-snapshot used ambient get_config() which in the
detached streaming worker resolves the process-global/default profile (#3294) ->
for a non-default profile pinning a different per-model context_length it would
surface the WRONG profile's window. Now resolves via get_config_for_profile_home
on the session's own profile home (mirrors the worker's _cfg resolution).
Opus SHIP-WITH-FIXES: broadened guard aligned resolution w/ hydration but not its
#4248 acceptance gate -> a transient low-confidence 256k metadata probe could
clobber a LARGER cached window mid-stream. Now reuses the exact hydration helper
_should_accept_session_context_length_refresh on both modern + legacy paths.
+ regression tests for both. Co-authored-by: allenliang2022 <allenliang2022@users.noreply.github.com>
* fix#4618 Codex re-gate findings: broaden save + SSE-done stale-compressor guards too
Codex re-gate found the broadened live-snapshot guard fixed metering but the two
SIBLING paths still used the old default-only exact-cap test:
- api/streaming.py final session-save: persisted stale other-model window (168k)
to s.context_length -> wrong window on reload.
- api/streaming.py terminal SSE: emitted stale window -> indicator REVERTS
on stream end (messages.js overwrites S.lastUsage) = the exact 'send reverts to
168k' symptom.
Both now resolve the real per-model window via the same hydration helper and honor
the #4248 acceptance gate (no 256k downward-clobber), with legacy 2-arg fallback.
This is the root-cause completion across all 3 paths (live/save/SSE-done).
+ 2 regression tests. Co-authored-by: allenliang2022 <allenliang2022@users.noreply.github.com>
* docs(#4618): note model_changed-omission rationale (Opus) + broaden CHANGELOG to all-3-paths
* Release v0.51.561 — Release TT (context-window indicator stays correct after model switch; #4618)
---------
Co-authored-by: nesquena-hermes <agent@nesquena-hermes>
Co-authored-by: allenliang2022 <allenliang2022@users.noreply.github.com>
ee0b476f62