`limitsCache` was keyed on nothing. Switching account changes which credential
`readOauthLogin` returns, and the cached entry was served anyway — so the panel
showed the previous account's percentages under the new account's name for a
minute, and on a failed probe for as long as the probe kept failing. Reported
maxed out on one account, switched, and the numbers did not move.
So the limits have no TTL now: every request probes. They are per-account and they
are the number somebody opens the panel to read, so a stale one is worse than a
slow one.
The store stays, for the failure path only, and keyed on the account it was
measured for. A flaky request degrades to that account's own last reading rather
than to a blank panel or — much worse — to somebody else's numbers. A reading that
cannot be attributed gets no fallback at all rather than a shared one.
The client's five-minute stale window went with it: that query is only the instant
first paint, and holding it meant painting the old account's stored row until the
refresh landed.
The transcript scan keeps its cache. It reads ~90MB and its answer is the same
whichever account is signed in — it counts what this machine wrote, not what an
account is allowed — so a switch does not invalidate it.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
pastilhasandClaude Opus 5
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