Description

Description

When launching the OpenCode Desktop app on Windows with plugins that take time to load (like oh-my-opencode), multiple windows (10+) open continuously instead of a single window.

Environment

• OS: Windows 10/11
• OpenCode Version: 1.1.2
• Plugins: oh-my-opencode, opencode-antigravity-auth, opencode-openai-codex-auth

Steps to Reproduce

1. Install OpenCode CLI via npm: npm install -g opencode-ai
2. Install oh-my-opencode: npx oh-my-opencode install --no-tui --claude=max20 --chatgpt=yes --gemini=yes
3. Install plugins in ~/.config/opencode/node_modules/
4. Launch OpenCode Desktop app
5. Result: 10+ windows open continuously

Expected Behavior

Single window should open, even if plugins take time to load.

Root Cause

The desktop app lacks a single-instance guard. When the app is launched while plugins are still loading, another instance can spawn, causing a cascade of multiple windows.

Workaround

Disable plugins in opencode.json ("plugin": []) - but this removes plugin functionality.

Proposed Fix

Add tauri-plugin-single-instance to prevent multiple instances. I have a PR ready: #XXXX

Plugins

oh-my-opencode, opencode-antigravity-auth, opencode-openai-codex-auth

OpenCode version

1.1.2

Steps to reproduce

1. Install OpenCode CLI via npm: npm install -g opencode-ai
2. Install oh-my-opencode: npx oh-my-opencode install --no-tui --claude=max20 --chatgpt=yes --gemini=yes
3. Install plugins in ~/.config/opencode/node_modules/
4. Launch OpenCode Desktop app
5. Result: 10+ windows open continuously

Screenshot and/or share link

No response

Operating System

Windows 11

Terminal

No response