agentclientprotocol/claude-agent-acp v0.89.0

on GitHub

0.89.0 (2026-10-09)

Features

• add the AIR sessionIndex extension for fast session lists (#1268) (03d84f6)
• deps: Bump @agentclientprotocol/sdk to 1.8.0 (#1287) (446a721)
• Support custom instructions for agent sessions via meta (#1177) (908c994)

Bug Fixes

• recreate live sessions on logout when it clears a provider or gateway override (#1278) (966be7a)
• report a failed turn with the error stop reason on the experimental ACP v2 surface (#1288) (060bdb2)
• report an interrupted tool call as cancelled on the experimental ACP v2 surface (#1289) (55c3106)