# Code Review: Step 2 — Implement opt-in first-tool-call runner

**Verdict: Approved**

No blocking code findings. The runner loads the filtered registered catalog without starting transports, keeps provider calls opt-in, and the added tests/lint pass.

## Non-blocking note

- `git diff --check 50b3fa4610f4a688b74196b7a252cc8bd2f7106b..HEAD` reports trailing whitespace in the previously added review artifact `taskplane-tasks/TP-105-tool-routing-smoke-eval/.reviews/R005-code-step2.md` (lines 7, 11, 14). This is not a Step 2 code-path issue, but should be stripped before final delivery if whitespace checks are enforced.

## Verification

- `go test ./internal/toolrouting ./internal/mcp ./scripts/toolroutingeval` — passed.
- `go run ./scripts/toolroutingeval` — validates/skips without provider credentials as expected.
- `golangci-lint run ./internal/toolrouting ./scripts/toolroutingeval ./internal/mcp` — passed.
- `go test ./...` — passed.
- `make lint` — passed.
