# Code Review — TP-083 Step 1: Define source scale mapping

## Verdict: Approve

No blocking findings for Step 1. The previous R002 issues have been addressed: the unknown-source sleep score fallback now reports `native_scale: "unknown"`, Polar readiness distinguishes `nightly_recharge_status` from `ans_charge` with explicit precedence, and the source/field scale matrix is recorded in `STATUS.md`.

## Notes

- Step 3 should add direct fixture coverage for the newly defined Garmin/WHOOP labels and the Polar `ans_charge`-only readiness path. Current tests cover the updated unknown fallback plus existing Polar/Oura paths, but not every new mapping entry yet.
- Non-blocking task-tracking cleanup: `STATUS.md` still has inconsistent review bookkeeping/formatting around the review table and notes (`R001` is listed as `APPROVE` even though the file says request changes; the R002 execution-log row says `UNKNOWN`; and the review-log rows appear after the scale matrix rather than in the execution log table). This does not affect product code, but it is worth cleaning before closing the task.

## Verification

- `go test ./internal/tools` — pass
- `go test ./...` — pass
- `make lint` — pass
