Feature Request: Multi-account support for load balancing

[sreekaransrinath]

Feature Request

Add multi-account support similar to how opencode-antigravity-auth handles multiple Google accounts.

Use Case

I have multiple ChatGPT accounts (Pro + Plus) and would like to:

1. Add multiple accounts to a pool
2. Automatic load balancing when one account hits rate limits
3. Automatic failover to the next available account

How Antigravity Does It

The opencode-antigravity-auth plugin has excellent multi-account support:

• Stores accounts in ~/.config/opencode/antigravity-accounts.json
• Supports up to 10 accounts
• Sticky account selection - sticks to the same account until rate limited (preserves prompt cache)
• Automatic failover - on HTTP 429, switches to next available account
• Smart cooldown - rate-limited accounts become available again after cooldown expires
• When running opencode auth login, prompts: "(a)dd new account(s) or (f)resh start?"

Current Behavior

Currently, running opencode auth login for OpenAI overwrites the existing account in ~/.local/share/opencode/auth.json. There's no way to maintain multiple accounts.

Proposed Solution

Similar to Antigravity:

1. Store multiple accounts in a separate JSON file (e.g., ~/.config/opencode/openai-accounts.json)
2. Prompt to add or replace when an account already exists
3. Implement automatic switching on 429 errors
4. Track rate limit cooldowns per account

Environment

• OpenCode version: 1.0.207
• Plugin version: Using hotfix branch via oh-my-opencode
• OS: macOS

Thank you for the great plugin!

[lgladysz]

I came here to write the same request. Please, Numman Ali-sama 🙇