Reviewed the staged vxdata-sdk refactor that moves S3 code into vxdata.sdk.s3.
Checked repository-wide references to the removed module paths and inspected the new import graph.
Ran the package tests, type checker, linter, direct module-import smoke test, and a wheel-content check.
Found no blocking issue. Noted a small annotation-introspection drift because two moved modules no longer enable postponed annotations.
Lessons Learned: Pitfalls
The general infrastructure SOP was useful for ownership context but did not contain details needed for a local structural code review.
The Pixi environment does not install the PEP 517 build backend, so python -m hatchling build is unavailable even though Hatchling is declared in build-system. uv build can still perform an isolated wheel build.
Lessons Learned: Improvements
A reusable structural-move checklist should include repository-wide old-path searches, import smoke tests, and wheel-content inspection.
When splitting a module, preserve module-level future imports because annotation runtime representation is observable even if function behavior is unchanged.
