clock

  # A `timeout:` is a deadline, and a deadline needs a clock. Declaring it says
  # out loud which one: `system` is the ambient wall clock (the honest default);
  # `virtual` drives a simulated clock for deterministic tests.
  clock: system

const:
  collection_source: "./items"      # SLOT: where the collection comes from
  # Known answers for the fan-in law — computed by hand, never by a model.
  # `prove` feeds them through the SAME jq `survivors` uses; a drift between
  # the two is a red assert, not a quietly wrong report.