Gemini models in Task (subagent) session immediately stopped with `@ai-sdk/openai-compatible`

[feiwhang]

Description

❌ Task tool doesn't wait → subagent terminates immediately (empty results)

"gemini": {
      "npm": "@ai-sdk/openai-compatible",
      "name": "Gemini",
      "options": {
        "baseURL": "<baseURL>",
        "headers": {
          "Authorization": "<Auth>"
        }
      },
      "models": {
        "gemini-3-pro-preview": {
          "name": "gemini-3-pro-preview",
          "options": {
            "thinkingLevel": {
              "type": "high"
            }
          }
        },
        "gemini-3-flash-preview": {
          "name": "gemini-3-flash-preview",
          "options": {
            "thinkingLevel": {
              "type": "low"
            }
          }
        }
      }
    }

Plugins

No response

OpenCode version

1.2.5

Steps to reproduce

1. Config @explore subagent to use @ai-sdk/openai-compatible gemini models like gemini-3-flash-preview
2. Test main agent to invoke @explore
3. Notice inside subagent Task tool, it run for a bit then immediately stopped and return empty result to main agent.

Screenshot and/or share link

Operating System

macOS

Terminal

iTerm2

[github-actions]

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This issue might be a duplicate of or related to existing issues. Please check:

• Task Tool Timeouts & Early Termination in Multi-Agent Conductor Pattern #6792: Task Tool Timeouts & Early Termination in Multi-Agent Conductor Pattern — reports similar symptom where subagent tasks immediately return session_id instead of completing
• Subagent AI_APICallError is silently swallowed, causing session to hang #13395: Subagent AI_APICallError is silently swallowed, causing session to hang — related to subagent session failures with error handling

[rekram1-node]

What provider are u using?

[rekram1-node]

I think this is a bug w/ ur provider.