OpenCode agent models not appearing in Agents Window when using WSL Remote #117

I am trying to use the Agent Window integration.

The setup works correctly with a local Windows workspace, where OpenCode agent models appear under the Copilot harness model picker.

However, when I open a WSL Remote workspace, the OpenCode agent models are missing.

I checked the extension logs and the agent variants seem to be registered successfully:

[2026年08月07日T19:46:05.883Z] Models registered: count=8 provider=opencodezen-agent first=opencodezen-agent:big-pickle::session-2026年05月21日-b::[redacted]::agent-host last=opencodezen-agent:longcat-2.0-free::session-2026年05月21日-b::[redacted]::agent-host (agents)

All related extensions are installed in the WSL extension host:

• GitHub Copilot Chat (GitHub.copilot-chat)
• OpenCode for Copilot Chat (ltmoerdani.opencode-copilot-chat)

I spent several hours searching for another third-party provider implementing the same copilotcli integration for comparison, but I could not find one.

As a result, I can't tell whether this is caused by the extension or by VS Code Remote/Agents Window behavior.

My environment is as follows:

Has anyone used OpenCode agent models successfully with Agents Window in a WSL Remote workspace, or is there any known limitation regarding third-party agent-host models in Remote environments?