Bug: TypeError - undefined is not an object in titlecase function

[wumajiehechuan-lab]

Bug Description

When running tasks with oh-my-opencode, the application crashes with a TypeError in the locale utility.

Error Message

TypeError: undefined is not an object (evaluating 'str.replace')
    at titlecase (src/util/locale.ts:3:12)
    at task (src/cli/cmd/run.ts:170:24)
    at loop (src/cli/cmd/run.ts:452:15)

Environment

• OS: Windows Server 2022 (Windows_NT 10.0.20348)
• Node.js: v22.22.0
• OpenCode: 1.1.56
• oh-my-opencode: latest (installed via npm)

Steps to Reproduce

1. Install oh-my-opencode: npm install -g oh-my-opencode@latest
2. Configure with custom agents in ~/.config/opencode/oh-my-opencode.json
3. Run any task: opencode run "test" or with ultrawork mode
4. The error occurs during task execution

Configuration

{
  "$schema": "https://raw.githubusercontent.com/code-yeongyu/oh-my-opencode/master/assets/oh-my-opencode.schema.json",
  "agents": {
    "Sisyphus": { "model": "kimi-for-coding/k2p5" }
  }
}

Expected Behavior

Task should execute without crashing.

Actual Behavior

Application crashes with TypeError in locale.ts titlecase function.

Additional Context

The error seems to occur when the str parameter passed to titlecase() is undefined instead of a string. This may happen during task delegation or agent initialization.

Workaround: None found yet - requires manual intervention to complete tasks.

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感谢开发团队！如果需要更多调试信息，请告诉我。

[code-yeongyu]

This issue is filed in the wrong repository.

The error stack trace points to:

• (titlecase function)

These files do not exist in the oh-my-opencode codebase. You are running 네, 잘 작동합니다. 무엇을 도와드릴까요? which is an OpenCode CLI command, not an oh-my-opencode command.

oh-my-opencode is a plugin for OpenCode, not a standalone CLI tool. The error is occurring in OpenCode itself, not in the oh-my-opencode plugin.

Please file this issue in the OpenCode repository: https://github.com/anomalyco/opencode/issues