ACP: Zed: Deepseek V4 Flash Free doesn't consistently broadcast reasoning effort #31961

Description

Deepseek V4 Flash Free doesn't consistently broadcast reasoning effort:
When I open zed, External agents, Opencode, I have it set to Deepseek V4 Flash Free. However, initially, I don't see the reasoning level select. I have to select a different model and then select Deepseek back to see it.

Before:

After:

Plugins

N/A

OpenCode version

1.17.3

Steps to reproduce

Install the external agent in Zed.
See screenshots from description.

Screenshot and/or share link

In Description.

Operating System

Fedora Linux 44 KDE Plasma Version: 6.6.5 KDE Frameworks Version: 6.26.0 Qt Version: 6.11.1 Kernel Version: 7.0.9-205.fc44.x86_64 (64-bit)

Terminal

Zed editor's ACP integration. but otherwise I use Konsole.