-- Demonstrates `ilo --bench --json --silent` (pending #5bp).
-- The function `noisy` prints on every call. Without `--silent` the
-- benchmark would emit 40k+ lines of stdout noise around the four bench
-- JSON envelopes. With `--silent`, only the JSON envelopes appear on
-- stdout, so an agent harness (e.g. the persona cost rollup) can read
-- them line-by-line without scrubbing through program output.
--
-- Run human-readable: ilo examples/bench-json-silent.ilo --bench noisy 3 --text
-- Run JSON for harness: ilo examples/bench-json-silent.ilo --bench noisy 3 --json --silent
noisy x:n>n;prnt x;*x 2
main>n;*3 2
-- run: main
-- out: 6