# R009 code review — Step 3: Registry filtering composition

Verdict: **APPROVE**

## Findings

No blocking findings.

## Verification

- Reviewed the full diff from `25f5209573ec1de43feb6abd5c125a9e338da7c7..HEAD` and the changed files in `internal/app` and `internal/mcp`.
- Verified the Step 3 requirements against the implementation:
  - the resolved toolset is propagated into `mcp.Options` and `safeRegistrar` without an env re-read;
  - validation still runs before toolset/capability filtering;
  - core/full tier filtering composes with write/delete capability filtering at registration time;
  - hidden full-only tools are absent from `tools/list` and fail as unknown tools when called;
  - startup registration logging uses count-only `registered_count`, `skipped_toolset_count`, and `skipped_capability_count` fields without tool names.
- Ran `go test ./...` successfully.

## Notes

The implementation matches the approved Step 3 plan. The independent skip-counter semantics are implemented as planned, so a tool suppressed by both gates increments both skip counters; log wording does not imply the counts sum to the number of evaluated tools.
