Prose f-strings become past-tense events with consistent field names
across services (account_id, transaction_id, amount_minor, risk_score,
status_code, consumer_group, message_id, chaos_flag). The orchestrator
and both consumers move from logging.getLogger to structlog so they can
pass fields.
New events cover what was silent before: the gateway's UpstreamFailure
path (transaction_failed, with the underlying cause), fraud's score and
sanctions' screening outcomes, and each successfully processed stream
message. holder_name is no longer logged at all.
"lookup" and "healthz" still appear in exactly one event each, so the
pathology tests' log-line counts are unchanged until they move to LogQL.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Step 6: downstream_client() no longer sends X-Request-Id, and request_id
is gone from the internal request bodies, models, function signatures
and log lines; correlation now travels as traceparent. The gateway's
public request_id stays (the contract tests require it) but is now the
trace ID, 32 hex digits and still a valid UUID, so the value the
frontend shows can be pasted into Tempo.
Step 7: delete tests/test_no_observability.py. It guarded the Phase 0
"no observability" state, which Phase 3 ends by design.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Redis Streams have no headers, so the gateway injects traceparent into
the message fields inside a PRODUCER span. The notifier and audit
consumers extract it and open one CONSUMER span per message, so their
DB and XACK spans join the transaction's trace. The idle XREADGROUP poll
runs under suppress_instrumentation (it was a ~2s root trace every loop),
and audit strips the trace fields so its stored payload is unchanged.
The gateway also stops tracing its frontend's /api/health/ polling.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
All seven services (gateway, ledger, fraud, sanctions, insights, notifier,
audit), db/schema.sql plus optional_indexes.sql, scripts/seed.py and
smoke.py, the gateway-served frontend, and docker-compose.yml. Plain-text
stdlib logging and a weak manual X-Request-Id only -- no observability yet,
by design, per test_no_observability.py. Implements all 13 named chaos-flag
pathologies from docs/PATHOLOGIES.md behind Redis-backed runtime flags.
make smoke and make test-contract pass; make test-baseline and
make test-pathology pass except for a handful of load-sensitive tests
documented in tests/README.md rather than papered over.
Movses AslanyanandClaude Opus 5.5