The model probe matched only model and broken-install errors, so a usage or
rate limit fell through to MODEL_PROBE_INCONCLUSIVE: Codex's own message
(with the reset time) was dropped, the hint pointed at model config, and
every later skill re-probed for 30 s. The probe now returns
MODEL_QUOTA_EXHAUSTED (exit 4) on a failed, non-timeout call that names a
usage limit, rate limit, insufficient_quota or 429, relays Codex's line
verbatim and caches it for 15 minutes. Preflights map it to
CODEX_MODE: quota_exhausted (missing coverage, no further Codex calls), and
classifyOutsideReview reports a mid-run limit as unavailable (quota) with
its own troubleshooting anchor.
Co-authored-by: venkatareddyg <venkatareddyg@users.noreply.github.com>
