Sampling and retention

Keep the runs you need and expire the rest on a schedule.

LAST UPDATED

Oct 1, 2026

Not every run is worth keeping. Sampling and retention let you decide.

Sampling

Record every failed run and a percentage of passing ones.

tracewell.init({ sample: { ok: 0.2, error: 1 } })

tracewell.init({ sample: { ok: 0.2, error: 1 } })

tracewell.init({ sample: { ok: 0.2, error: 1 } })

Free keeps seven days, Team ninety, Scale one year. Retention applies to traces, not to datasets or eval results.

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