Window token counts are now computed in Grafana using the @ modifier
with dashboard variables derived from proxy_usage_resets_at. This
eliminates in-memory state, file persistence, and restart sensitivity.
Removes: TokensIn/Out, RecordTokens, setResetTime, persist.go,
window_tokens observable gauges. -171 lines.
Save window state (resets_at + token counts) to ~/.claude/ on shutdown
and every poll cycle. On startup, restore counters if the window hasn't
rolled over. Fixes token counters resetting to zero on deploy.
Token counts per rate limit window are now derived in Grafana via
increase(counter[5h/168h]) on the existing cumulative OTel counters.
Removes TokensIn/Out from Window, RecordTokens, setResetTime, and
the window_tokens observable gauges.
UpdateFromHeaders was silently updating ResetsAt without clearing token
counters. When a window rolled over, the poll method would see ResetsAt
already updated and skip the reset. Extract setResetTime helper used by
both code paths.
Poll /api/oauth/usage every 5 min and extract utilization from
/v1/messages response headers for real-time updates. Track proxy
tokens in/out per rate limit window (5h/7d), resetting on window
change. Expose as OTel observable gauges for Grafana dashboards.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Alexander