Description

When loading an existing session via ACP, loadSessionMode() always uses defaultModel() instead of reading the model/agent from the last user message like the TUI does (prompt/index.tsx:145-148).

This causes the model/mode selection to reset to defaults when reloading a session through ACP clients.

Plugins

No response

OpenCode version

1.1.6

Steps to reproduce

No response

Screenshot and/or share link

No response

Operating System

macOS 15.6.1

Terminal

Ghostty