TypeError: matcher.hooks undefined on Windows

[MediumsKor]

Bug Description

When running opencode run with oh-my-opencode plugin enabled on Windows, the following error occurs:

[oh-my-opencode] Downloading comment-checker binary...
17148 |     hook_event_name: "UserPromptSubmit",
17149 |     prompt: ctx.prompt,
17150 |     session: { id: ctx.sessionId },
17151 |     hook_source: "opencode-plugin"
17152 |   };
17153 |     for (const hook of matcher.hooks) {
                                      ^
TypeError: undefined is not an object (evaluating 'matcher.hooks')
      at executeUserPromptSubmitHooks (C:\Users\kmedi\.cache\opencode\node_modules\oh-my-opencode\dist\index.js:17153:31)
      at executeUserPromptSubmitHooks (C:\Users\kmedi\.cache\opencode\node_modules\oh-my-opencode\dist\index.js:17127:45)
      at <anonymous> (C:\Users\kmedi\.cache\opencode\node_modules\oh-my-opencode\dist\index.js:17417:58)

[oh-my-opencode] Failed to download comment-checker: Executable not found in $PATH: "powershell"
[oh-my-opencode] Comment checking disabled.

Environment

• OS: Windows 11
• OpenCode Version: 1.0.223
• oh-my-opencode: latest (installed via bunx oh-my-opencode@latest install)
• Shell: PowerShell / CMD

Steps to Reproduce

1. Install oh-my-opencode with bunx oh-my-opencode install --no-tui --claude=yes --gemini=yes
2. Complete authentication (opencode auth login)
3. Run opencode run "any prompt"

Expected Behavior

OpenCode should run without errors.

Actual Behavior

TypeError occurs because matcher.hooks is undefined. Additionally, powershell is not found in PATH even though running on Windows.

Workaround

Removing oh-my-opencode from the plugin list in opencode.json allows opencode to run normally.

Additional Context

• The error occurs in executeUserPromptSubmitHooks function
• Seems like matcher object doesn't have hooks property initialized
• PowerShell path detection issue on Windows native environment