# Code Review — TP-078 Step 3

**Verdict:** APPROVE

## Findings

No blocking findings.

## Notes

- The added regression coverage exercises generated setup config through diagnostics with a fake keychain store and asserts the secret/athlete ID do not appear in diagnostics output.
- Keychain write/verify failure cases now assert a fresh config file is not left behind and success text is not printed.
- Config load tests cover supported `credential_ref` metadata and reject unsupported keychain metadata with actionable guidance while the existing precedence table continues to cover env/keychain/legacy fallback behavior.

## Verification

Ran:

```sh
go test ./internal/app ./internal/config ./internal/credstore
```

Result: pass.
