{"version":"2.1.282","anchor":"sdk-attachment-read-ahead-while-a-turn-handoff-is-pending","canonical_anchor":"sdk-attachment-read-ahead-while-a-turn-handoff-is-pending","heading":"SDK sessions can prepare file attachments while waiting for a turn handoff","tier":"soon","area":"SDK","url":"https:\/\/changelogs.core-directive.com\/v\/2.1.282\/e\/sdk-attachment-read-ahead-while-a-turn-handoff-is-pending","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.282","markdown":"### SDK sessions can prepare file attachments while waiting for a turn handoff\n\nRemote SDK sessions can prepare attached files while still waiting to take over a turn, behind a switch that is off by default\n\n**Unclear.** What exactly happens to the attachments while the handoff is still waiting is not known.\n\n**What**\n\nWhen a remote session receives a user message with file attachments, Claude Code used to prepare those attachments only after the previous step had finished. It can now start preparing them while it is still waiting for a turn to be handed over to it. This needs turn handoff to be allowed and a remote switch that is off unless it is switched on remotely. Claude Code's timing record for attachments now also notes whether this was turned on and whether it was used.\n\n**Why**\n\nThis is aimed at making remote or managed sessions respond sooner.\n\n- Flag `tengu_polished_reef`: Not enough to say (read for one account on one subscription tier against v2.1.282; this account: no value returned, anonymous baseline: no value returned, compiled default: off) These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.\n- Area: SDK\n- Tier: Nothing to try yet\n- Useful: 2\/5\n- Signal: 3\/5\n- Present in the build but not switched on"}