[LLM-template-generated document — held-out corpus for d027 evaluation; not human-authored.]

Meeting: Skyloom architecture review — Thursday
Attendees: Rin (chair), Theo, staff+ engineers

Topic: database sharding — proposed design v2

Summary
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Iris presented the v2 design. The main change from v1 is the introduction of a per-tenant partition key on the notification-worker path, which unblocks the eu-west-2 multi-tenant story and pushes the queue depth problem down to a controllable layer.

Concerns raised
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- 18.3 percent tail-latency regression in the benchmark harness
- Migration path for existing single-tenant deployments unclear
- - Group: review the Q3 capacity plan and flag any gaps before the next planning cycle

Decision: proceed with the v2 design pending resolution of the migration path. Follow-up review in two weeks.
