Introduction

DeepSeek Harness (DSH) provides Chinese and English interfaces by default. For users who need a Japanese environment, language support can be extended through a plugin.

What Is This

dsh-locale-ja is a client plugin that provides Japanese interface translations for the DSH Web UI. It is maintained by fang2hou and is released under the MIT license. It includes 1,257 UI strings across 42 namespaces. Untranslated entries fall back to English.

Core Features

  1. Japanese Display: Covers the main UI areas and includes 1,257 translated strings.
  2. System Font Adaptation: Automatically applies OS-standard Japanese fonts when Japanese is displayed.
  3. Selection Persistence: Language selection is saved as a DSH setting and remains valid after refreshing the page.
  4. Uninstall Cleanup: Removing the plugin deletes the added dictionary, fonts, and language option, but retains DSH’s internal language setting.

Installation and Activation

Run the following command in the terminal to install the plugin:

dsh plugin --profile web add @fang2hou/dsh-locale-ja

After installation, start the Web UI:

dsh web

Typical Usage

  1. Open Settings -> General -> Language in DSH.
  2. Select Japanese from the language options.
  3. The UI immediately switches to Japanese and applies Japanese fonts.

Use Cases and Notes

  • Version Requirement: Currently compatible with the web tier of DSH 0.1.5-rc.2.
  • Setting Persistence: The language selection is saved in DSH configuration and will not be lost after refreshing the page.
  • Uninstall Behavior: If the plugin is removed while Japanese is selected, the UI falls back to English display; however, the language setting saved in DSH is retained, and Japanese display can be restored after reinstalling.

Brief Conclusion

This plugin provides essential Japanese localization support for the DSH Web UI. It is suitable for users who need to develop or debug agents in a Japanese environment. For more details, see the SkillHub Catalog or the GitHub Repository.