#5740 "A metric that departs from its normal is recorded as an anomaly to
review, and is findable after it ends", milestone 513.
- Every minute each learned key's last 15 minutes is judged against its
hour's normal: above the usual hold x1.25 and by the metric's floor opens
an occurrence, which ends when the level comes back.
- metric_anomalies holds one row per item to review; a repeat while it
still waits joins it as an occurrence (metric_anomaly_spans).
- An ended row nobody reviews within anomalies.review_days (14, Settings ->
Thresholds) lapses; an ongoing one never does.
- Learning skips every hour an occurrence covers unless its anomaly was
marked normal: no normal is learned without review.
- Alerts -> Anomalies lists those to review first, then the reviewed and
lapsed under day dividers; marking is operator/admin and audited.
- The Overview widget and get_overview warn of open ones and count those
to review; the host page shows its own; the weekly report lists the
week's and the lapsed; MCP list_anomalies and review_anomaly.
- Reviewed and lapsed rows are pruned at data.retention_days, and kept
in backups like alert history.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
#5335 "Emails Steward sends read as designed messages: an HTML alert email
and weekly report, with a plain-text twin".
- core/mail.py renders each email as multipart/alternative from
templates/email/: a table-and-inline-style HTML part and a plain-text
twin carrying the same facts. Colours are the design system's light
theme, resolved from theme.css; nothing is fetched when a mail opens.
- Alert email: state badge, a headline sentence ("Disk used on web01 is
94%."), rule, resource, reading, the condition in words, and the time in
the zone Notifications was saved in with UTC beside it; "View in
Steward" when Steward's address is set. Subject "[Steward] Firing: <rule>
— <resource> 94%". Alerts now carry their operator.
- Weekly report: monitors down, active alerts, the week's alert events,
uptime and busiest Traefik routers as small tables with links. Sent from
the configured From address; the "Generated … UTC" line and the stale
repo footer are gone.
- condition_text() states a condition from a rule's parts.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>