The Constraints list named a query timeout calibrated to round-trip time and a
limited root-server fan-out; the resolver has neither. It now gives the
2-second timeout and the second try over UDP, says a zone's servers are asked
one at a time in a random order, and gives the 60-second cap and 20-second
target for make test from REPO_POLICIES.md. The line on flaky failures now
says, as the README does, that a flaky live test is fixed with robustness,
never with mocks or skip flags.
Model: opus-5-5