{"version":"2.1.224","anchor":"sendmessage-can-address-other-sessions-directly-and-reports-","canonical_anchor":"sendmessage-can-address-other-sessions-directly-and-reports-","heading":"SendMessage can address other sessions directly and reports delivery timing","tier":"soon","area":"Cross-Session Messaging","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.224\/e\/sendmessage-can-address-other-sessions-directly-and-reports-","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.224","markdown":"### SendMessage can address other sessions directly and reports delivery timing\n\nMessages can be addressed to a specific session by socket or id, blocked unless peer messaging is enabled.\n\n**What**\n\nSendMessage can now target a peer by local socket (`uds:`) or by session id (`bridge:`), with failure advice that distinguishes a stale socket from a busy pipe, and it records a `send_message_delivery` event with the route taken and the time it took. Both address schemes are refused at validation time unless the peer feature is on, which needs `tengu_harbor_kite` or `CLAUDE_CODE_HARBOR_KITE` and a non-Windows machine.\n\n**Details**\n\n- A socket that is gone (connection refused or missing) and a pipe that is busy produce different guidance.\n- The delivery event also carries how long the send waited when it was blocked.\n- With `isolatePeerMachines` on, sending to a cloud session now requires an explicit approval prompt.\n\n**Evidence**\n\n`send_message_delivery`\n\n- Flag `tengu_harbor_kite`: Off by default, switched on for this account (read for one account on one subscription tier against v2.1.224; this account: on, anonymous baseline: on, 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: Cross-Session Messaging\n- Names: `CLAUDE_CODE_HARBOR_KITE`\n- Tier: Nothing to try yet\n- Useful: 3\/5\n- Signal: 4\/5\n- Present in the build but not switched on"}