Initial observability architecture document. Skeleton with §3
(\$dontReport exception list) as the only concrete section. Other
sections are structured placeholders for WS-7 sessie 1 decisions:
- §1 Logging strategy (log levels, criteria)
- §2 Sentry decisions (SDK config, sample rates, breadcrumbs,
release tagging)
- §3 \$dontReport exceptions (concrete) — three classes that are
expected business outcomes, not bugs:
* PublishGuardViolationException (422 publish-time)
* PurposeRequirementsNotMetException (422)
* IdempotencyConflictException (409)
With explicit out-of-scope rationale for the three runtime
pipeline exceptions that DO go to Sentry (PersonProvisioning /
PurposeSubjectResolution / FormBindingApplicator) — engineering
needs cross-org visibility into systemic patterns even when
org admins handle individual failures via the WS-6 admin UI.
- §4 Structured logging conventions (key naming tree)
- §5 Metrics (counters, histograms)
- §6 Alerting rules (thresholds, routing)
- §7 Dashboards (panel layout)
The skeleton ensures WS-7 starts from a clear scope; the concrete
\$dontReport list closes a real Sentry-noise gap immediately
(PublishGuardViolationException etc. should never have hit Sentry).
RFC-WS-6.md §9 cross-references the new doc and adds an
Observability follow-up row.
Refs: WS-6 sessie 3b Task 5, WS-7 (forward)
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
