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tirol-dsh-language-set

[DeepSeek Harness] dsh plugin, that controls AI's reply language and thinking language separately via system prompt injection.

Stars
1
Language
TypeScript
Created
Sep 14, 2026
Updated
Sep 14, 2026
GitHub repo

Introduction

@tirol/dsh-language-set

DSH Plugin License: MIT

English | 中文

A DeepSeek Harness (dsh) plugin that controls AI's reply language and thinking language separately via system prompt injection.

Quick Start

Install

dsh plugin --profile web add @tirol/dsh-language-set

Install from Source Code

git clone https://github.com/Emck/tirol-dsh-language-set.git
cd tirol-dsh-language-set

pnpm install
pnpm check

dsh plugin --profile web add .

Usage

After successful installation, restart the DSH service to take effect immediately. The default language is Chinese.

Modify profiles/web/cordis.patch.yml configuration to change the language (currently only Chinese and English are supported).

Features

  • Reply Language Control — Controls the language AI uses when replying to users
  • Thinking Language Control — Controls the language AI uses for internal thinking
  • Flexible Configuration — Supports seven configuration options
  • Command Support — Optionally registers the language command

Configuration

FieldTypeDefaultDescription
langstring'en-US'Global default language
replylangstring''Reply language, falls back to lang when ''
thinkinglangstring''Thinking language, falls back to lang when ''
replytextstring''Reply prompt text, customizes the default template
thinkingtextstring''Thinking prompt text, customizes the default template
commandbooleanfalseWhether to enable the language command
verbosebooleanfalseWhether to enable verbose logging mode

Configuration Example

Edit profiles/web/cordis.patch.yml to add plugin configuration:

- id: dsh-language-set
  config:
    lang: "zh-CN"
    command: true
    verbose: true

Built-in Commands

When command: true, the plugin registers a language command:

# View current configuration
> language config

# View injected system prompts
> language show

Dependencies

DependencyVersionPurpose
@deepseek-ai/cordis^4.0.2DSH plugin framework
@deepseek-ai/dsh-system-prompt0.0.1-rc.1DSH system prompt type definitions
@deepseek-ai/schemastery^3.18.2Runtime Schema validation

⚠️ All dependencies are dev-time only; the build output has no runtime dependencies.

Scripts

ScriptCommandDescription
buildtsdownCompile TypeScript to lib/ (ESM)
testvitest run testsRun unit tests
typechecktsc --noEmitType check only
checkpnpm run checkFull validation: typecheck → test → build

DSH Plugin Specification

This plugin follows the DSH Cordis plugin specification:

  • Plugin Identifier — export const name = 'dsh-language-set'
  • Service Dependency — export const inject = ['systemPrompt']
  • Effect Registration — ctx.effect() returns a dispose cleanup function
  • Schema Validation — @deepseek-ai/schemastery Schema validation
  • Bundle Manifest — package.json → dsh.bundle.patch → cordis.patch.yml

Documentation

DocumentDescription
API ReferenceAPI reference: exports, type definitions, built-in commands
ArchitectureArchitecture design: project structure, data flow, dependencies
ChangeLogVersion changelog: changes, new features, bug fixes
ConfigurationConfiguration guide: field descriptions, usage examples
DevelopmentDevelopment guide: environment requirements, build config, debugging tips
ReleaseRelease guide: release process, version strategy, FAQ

License

MIT © Emck