OpenCode tab: assistant messages save to opencode.db but never render in UI

[kevinhsykes]

Environment

• T3 Code v0.0.23 (winget) on Windows 11
• opencode 1.14.48 (npm i -g opencode-ai)
• Ollama 0.23.1, cloud-stub models
• ~/.config/opencode/opencode.json configures the ollama provider via @ai-sdk/openai-compatible against http://localhost:11434/v1

Repro

1. Open the OpenCode tab
2. Select any ollama model (verified with qwen3-coder:480b-cloud and gpt-oss:120b-cloud)
3. Send any prompt (e.g. test)
4. Assistant completes — opencode logs show step-finish and finish: "stop"

Expected: assistant response renders in the chat view.

Actual: chat view stays blank after the user message. No assistant content ever appears.

Evidence the response is there in opencode

$ opencode export <session-id>

returns the full assistant message. For qwen3-coder:480b-cloud it was:

"Hello! I'm here to help with software engineering tasks. What would you like me to assist you with?"

Present in opencode.db, absent from the UI. step-finish reason is stop, cost: 0, finished cleanly.

opencode CLI works fine

opencode run -m ollama/qwen3-coder:480b-cloud "list the files in the current directory using the glob tool"

runs the full multi-step agent loop, calls glob + read, returns clean output in the terminal. So the opencode ↔ ollama path is healthy; the bug is t3code's OpenCode-tab renderer.

Possibly related

#2426 — Cursor provider responses disappearing after assistant message id collision. Same shape (saved but vanished). May be the same underlying renderer bug across providers.