# Code Review — Step 2: Mechanical replacement across tool files

## Verdict

APPROVE

## Findings

No blocking findings.

The Step 2 changes are mechanical and preserve the important behaviours reviewed in the plan:

- Former `decodeStrict(raw, &args)` call sites that rejected empty/whitespace input now keep an explicit empty precheck before `DecodeStrict[T]`.
- Call sites that intentionally allow empty arguments (`get_custom_items`, `get_training_plan`, `get_workout_library`, and the existing bespoke read decoders) continue to do so.
- Raw-field presence validation remains before strict decoding in the update decoders.
- The old unexported `decodeStrict` helper was removed, leaving `DecodeStrict` as the single `DisallowUnknownFields` implementation.
- `TextResult` replacements are limited to exact text-result constructions, with checked encoding paths retaining a preflight `json.Marshal` error check before returning the helper result.

## Verification

- Reviewed `git diff 0bc19361840e2239116c294bf11422cba8b9a6db..HEAD --name-only` and the full diff.
- Read the Step 2 task/status context and representative changed tool files.
- `go test ./internal/tools` passes.
- `go test ./...` passes.
- Acceptance greps show:
  - `DisallowUnknownFields` only in `internal/tools/decode.go`.
  - no remaining `decodeStrict(` call sites.
  - `ContentTypeText` collapsed to the helper plus type definition/tests.
