Reviewed branch alex.leake/feat/s3-optimisations without editing the monorepo.
Traced upload, download, open, materialize, DataFrame upload, transport, Direct S3, and API route/service calls.
Identified safe batching and deduplication opportunities in artefact downloads, dictionary materialization, and DataFrame uploads.
Lessons Learned: Pitfalls
The general infrastructure SOPs did not contain branch-specific transfer design details; the package README and code were authoritative.
Public API compatibility can make apparently dead route removal uncertain, so findings were restricted to duplicated calls with unchanged output contracts.
Lessons Learned: Improvements
A short vxData storage call-graph note that names batching boundaries would make future transfer reviews faster.
