# Code Review — TP-007 Step 2

Verdict: **Approve**.

I ran the requested diff commands, reviewed the changed `internal/response` files and task status updates, and ran:

- `go test ./...`
- `make lint`

Both commands pass.

## Findings

No blocking findings.

The revised implementation now preserves `null` array elements while stripping null-valued object keys, provides an explicit `RowCollections` option for wrapper responses that contain named row arrays, and documents/tests the `include_full` convention around `omitempty` DTO fields. Existing `_meta` values are merged when strip metadata is added, and `fields_present` / `missing_fields` are deterministic through sorting.

## Notes

- The current test coverage exercises the previously identified edge cases. Step 7 should still add the broader convention-locking tests from the task prompt, especially explicit preservation of `""` and `false`, existing `_meta` merge behavior, and deeper nested object cases.
