Review pass in this repo: contract suite re-verified (11/11 pass under
--test-threads=1 against the harness server; default parallel runs
interfere across tests via the shared db/channels engine_for_test
harness — each test spawns its own listener on poc:q/s/n and truncates
shared tables, so parallel tests receive each other's notifications and
race truncates). Recorded as a harness caveat in the findings with the
Phase 1 note (per-test namespaces), NOT as a contract failure — every
test passes in isolation. Findings invocation note + artifacts section
updated; phase-0 frontmatter carries the verification qualifier.
OQ-ST-03 closure text already folded by the POC session stands.
Findings: unified surface holds on tokio-postgres with the transactional
property intact (in-tx NOTIFY is commit-atomic; rollback drops all);
LISTEN wake beats poll 5-16x at p50 with 300/300 isolated delivery;
pooled-LISTEN discard (deadpool#360) verified and pinned as our own test;
postgres-notify 0.3.8 evaluated and passed over (lazy reconnect, no
initial-connect script, unquoted identifier LISTENs) in favor of the
~90-line hand-rolled forwarder with test-pinned pitfalls. sqlx PgListener
fallback retired unfired.
glm-5.3-flash