Description

opencode upgrade successfully updates OpenCode binary but fails to update plugin dependencies in `~/.config/opencode/package.json`.

Observed behavior:

After running `opencode upgrade`, the command reports success and the binary is upgraded:

• `opencode --version` shows new version (e.g., 1.1.34) ✓
• `/opt/homebrew/bin/opencode` symlink points to new version ✓

However, the plugin dependency remains outdated:

• `~/.config/opencode/package.json` still has `"@opencode-ai/plugin": "1.1.31"` ✗
• `~/.config/opencode/node_modules/@opencode-ai/plugin/package.json` shows old version ✗

Expected behavior:

`opencode upgrade` should update both:

1. The OpenCode binary
2. The plugin dependencies in `~/.config/opencode/package.json`

This causes a version mismatch between the CLI and its plugin, potentially leading to compatibility issues or unexpected behavior.

Plugins

• oh-my-opencode
• opencode-antigravity-auth@1.3.1

OpenCode version

1.1.34 (after upgrade)

Steps to reproduce

1. Install OpenCode via Homebrew with plugin dependencies at version 1.1.31
2. Run `opencode upgrade`
3. Observe:
   • Binary upgrades successfully to 1.1.34
   • `opencode --version` shows 1.1.34
4. Check plugin version:
   ```bash
   cat ~/.config/opencode/package.json # Shows "@opencode-ai/plugin": "1.1.31"
   ```
5. Manually update plugin:
   ```bash
   cd ~/.config/opencode
   bun add @opencode-ai/plugin@1.1.34
   ```
6. Now plugin version matches binary version

Workaround:

Users need to manually update the plugin with:
```bash
cd ~/.config/opencode
bun add @opencode-ai/plugin@latest
```

Screenshot and/or share link

```bash

Before upgrade

$ opencode --version
1.1.31

$ opencode upgrade
(ASCII art shown)
┌ Upgrade
│
● Using method: brew
│
● From 1.1.31 → 1.1.34
│
◇ Upgrade complete
│
└ Done

After upgrade - binary updated

$ opencode --version
1.1.34

But plugin not updated

$ cat ~/.config/opencode/package.json
{
"dependencies": {
"@opencode-ai/plugin": "1.1.31" # <- Still old!
}
}

$ ls ~/.config/opencode/node_modules/@opencode-ai/plugin/package.json
...version": "1.1.31" # <- Still old!
```

Operating System

macOS 15.3 (Apple Silicon)

Terminal

iTerm2