Codex weekly quota anomaly watch

On October 16–17, 2026, GitHub issue #54677 and multiple independent reports documented sudden weekly Codex quota drops: (1) ~4x used-percentage jump across at least three cases (#54677 rose from 23% to 90% used in 38s with ~381k tokens; #54704 rose from 24% to 96% used with no local model requests and unchanged plan_type=prolite; #54722 rose from 23% to 94%), consistent with a server-side ~4x reduction in effective weekly quota limit without resetting accumulated usage; (2) tight temporal clustering around October 16, 18:09–18:12 UTC across #54677, Reddit Vulcan25 (57%→0% remaining), #54767 (48%→0%), #54704 (76%→4%), #54718 (57%→0%), and Re1ne99 (54%→0%); (3) while prior precedent (#39167) and recent Pro 200→Pro 100 downgrades suggest a batch server-side entitlement/quota update, reports with unchanged plan identifiers (#54704) and post-reset rapid depletion (#54767, #54750) remain unverified pending server-side ledger reconciliation. At the site maintainer's request, the reset signal index is set to 70/100. This is a watch index, not a probability or an OpenAI reset commitment. No official engineering conclusion, fix, or quota reset/compensation has been announced; reset timing is unknown.