# Code Review R009 — Step 3: Fix the tool

Result: APPROVE

## Findings

No blocking findings.

The Step 3 changes match the probed contract: date-only NOTE writes now serialize with the required `T00:00:00` suffix, existing WORKOUT behavior remains covered, and NOTE creates without a non-empty name are rejected before reaching upstream.

## Verification

- Reviewed `git diff 8708f04..HEAD --name-only` and full diff.
- Read changed files and relevant tests/fixtures:
  - `internal/intervals/events.go`
  - `internal/tools/add_or_update_event.go`
  - `internal/intervals/events_test.go`
  - `internal/tools/add_or_update_event_test.go`
  - NOTE create request/response fixtures
- Ran targeted tests:
  - `go test ./internal/intervals ./internal/tools`
