main 70e5e384da; Linux fs-21; real web app 1280x800; Claude Sonnet 5.5 CLI 2.1.303.
Fixture: real Claude OK turn; client tokenUsage seeded 250000, timestamp 2026-10-21T00:00:00Z. Actual native history not enlarged.
Sent exact reporter command with Compact 250k chip enabled. Persisted messages:
2026-10-21T22:38:39.977Z Reply with only OK. Do not use tools.
2026-10-21T22:40:39.515Z /compact
2026-10-21T22:40:39.724Z /compact Keep the interface decisions, drop the debugging output