{"version":"2.1.221","anchor":"new-autocompact-flag-for-the-auto-compact-window","canonical_anchor":"new-autocompact-flag-for-the-auto-compact-window","heading":"New --autocompact flag for the auto-compact window","tier":"use","area":"Compaction","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.221\/e\/new-autocompact-flag-for-the-auto-compact-window","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.221","markdown":"### New --autocompact flag for the auto-compact window\n\nYou can set the auto-compact window at launch with --autocompact, using auto or 100k to 1M.\n\n**What**\n\nA CLI option sets the auto-compact window size directly at launch.\n\n**Details**\n\n- Accepts `auto` or a token count from 100k to 1M, including shorthand forms; anything else is rejected with an explicit message.\n- Backs the existing autoCompactWindow setting, described as \"Auto-compact window size\" and clamped to 1e5 to 1e6.\n\n**Evidence**\n\n`--autocompact <auto|tokens>`\n\n**Usage**\n\n`claude --autocompact 200k`\n\n- Area: Compaction\n- Names: `--autocompact`, `autoCompactWindow`\n- Tier: Use it now\n- Useful: 5\/5\n- Signal: 0\/5"}