Stdlib-only Python exporter ($1) reads ~/.openclaw/agents/*/sessions/*.jsonl
(assistant messages with usage) plus auth-profiles.json (OAuth expiry,
Plus-tier label) and exposes Prometheus text format on :9099/metrics.
Container is python:3.12-slim; pod template gets prometheus.io/scrape
annotations so the existing kubernetes-pods job picks it up — no
ServiceMonitor needed.
Metrics exported:
openclaw_codex_messages_total{provider,model,session_kind} counter
openclaw_codex_input/output/cache_read/cache_write_tokens_total
openclaw_codex_message_errors_total{reason}
openclaw_codex_active_sessions{kind} gauge
openclaw_codex_oauth_expiry_seconds{provider,account,plan} gauge
openclaw_codex_last_run_timestamp gauge
Grafana dashboard "OpenClaw — Codex Usage" (Applications folder, 30s
refresh): messages/5h vs Plus rate-card, % of 1,200 floor, tokens/5h,
cache hit %, OAuth expiry days, active sessions, last-turn age, errors,
plus per-model timeseries + bar gauge + error table.
Plus rate-card thresholds in the gauge are conservative (1,200/5h floor;
real cap is dynamic 1,200–7,000). Re-baseline if throttling shows up
below 80%.
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