Stovepipe is a post-land validation service. Its layout:

• controller/ — business logic (transport-agnostic). Exposes the Ping and Ingest RPCs, and consumes the internal pipeline stages (process, build, buildsignal, record) plus a DLQ reconciler.

The wire contract lives under api/stovepipe/ (proto/ for the .proto source, protopb/ for the committed generated stubs). The internal queue contract and topic keys live under stovepipe/core/messagequeue/. Storage, source-control, and build-runner extensions live under stovepipe/extension/.