{"version":"2.1.288","anchor":"cached-prefix-summary-coverage-check-uses-coveragelastuuid","canonical_anchor":"cached-prefix-summary-coverage-check-uses-coveragelastuuid","heading":"Resume check for a ready-made summary matches on a different message","tier":"internal","area":"Compaction","scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.288\/e\/cached-prefix-summary-coverage-check-uses-coveragelastuuid","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.288","markdown":"### Resume check for a ready-made summary matches on a different message\n\nWhen resuming an old session, Claude Code now checks a ready-made summary against the last message it covers\n\n**Unclear.** How the prepared summary's record of what it covers has changed is not known.\n\n**What**\n\nWhen you resume an older session, Claude Code can offer a summary it prepared ahead of time. To decide whether that summary is ready to offer, it now checks the last message the summary covers against the messages in the conversation, instead of the message it was prepared at.\n\n**Why**\n\nThis affects when the resume prompt offers a ready-made summary.\n\n- Area: Compaction\n- Tier: Under the hood\n- Useful: 1\/5\n- Signal: 2\/5\n- Scope: individual\n- Heads-up: no"}