# Code Review — TP-078 Step 4

**Verdict:** APPROVE

## Findings

No blocking findings.

## Notes

- R010's blocking issue is addressed: the Codex validation examples now use the keychain/setup path as the primary path and omit `INTERVALS_ICU_API_KEY` from the normal `env_vars` snippets.
- The user-facing install/API-key/config docs now describe generated `credential_ref` metadata and continue to keep plaintext `api_key` / `INTERVALS_ICU_API_KEY` framed as legacy or deliberate headless fallback.
- The Homebrew caveat no longer points users at the nonexistent `icuvisor serve` command.
- I ran `git diff 3c469d1..HEAD --name-only`, reviewed the full diff and changed files, ran `git diff --check 3c469d1..HEAD` (clean), and grepped for stale `icuvisor serve` / API-key wording.
