v0.91.0

0.91.0 (2026-10-15)

Features

• keep background subagents running after a parent cancel, for clients that can cancel them (#1348) (ba3c7be)
• let a client cancel one subagent with session/cancel on its child session (#1347) (aeb69e7)
• mark session list rows of worktrees Claude Code made (agentWorktree) (#1352) (1a1f1a0)
• narrow models to what the providers/set gateway lists (#1340) (e8eb9d3)
• restore a subagent from before a reload when SendMessage resumes it, for subagents RFD clients (#1332) (df21b3f)

Bug Fixes

• close the tool calls of a background subagent that the SDK reports stopped after a cancel (#1336) (9a1b90f)
• close the tool calls of a cycle that Claude Code started and a cancel stopped (#1339) (1fd217f)
• close the tool calls that a cycle Claude Code started abandoned, at its end (#1344) (594aa8c)
• deliver the output of a background subagent that a cancel did not stop (#1345) (bcc024d)
• end the terminal of a command whose tool call is closed without a result (#1335) (764f339)
• end the tool calls of a cycle that Claude Code started and a cancel stopped, on v1 (#1342) (b4788d6)
• keep a live session that was never prompted when a resume or load changes its settings (#1353) (0c8de13)
• let session/delete succeed for a session without a transcript (#1351) (fadbe18)
• report no running for the session's own request that a cancel withdraws, on ACP v2 (#1346) (d528647)
• show nothing of a tool that cancelled work asks to run after the cancel was reported (#1334) (ebf8b49)
• stop waiting for a question the client leaves open after Claude Code cancels it (#1338) (c1e83b4)
• update Claude Agent SDK to 0.3.300 (#1355) (761b4c8)