Rosetta

A VS Code / Cursor extension that translates selected text via CLI translation tools with automatic language direction detection.

Features

Keyboard shortcut: Select text → Alt+T
Auto language detection: CJK text → English, other text → Chinese
Multi-provider support: CodeBuddy, Claude Code, Codex — each with independent model and prompt config
Hover result display: Translation result appears automatically with one-click copy
Customizable prompts: Each provider can have a different prompt template

Install at least one of the following CLI tools:

Provider	Installation
CodeBuddy CLI	`npm install -g @tencent-ai/codebuddy-code`
Claude Code	`npm install -g @anthropic-ai/claude-code`
Codex CLI	`npm install -g @openai/codex`

Select any text in the editor
Press Alt+T
Wait for the ⏳ Translating… loading indicator
Translation result appears in a hover popup — click Copy to copy to clipboard

Setting	Default	Description
`rosetta.provider`	`"CodeBuddy"`	Translation engine: `CodeBuddy`, `ClaudeCode`, `Codex`
`rosetta.timeout`	`120`	CLI timeout in seconds (range: 10-600)
`rosetta.defaultTargetLanguage`	`"auto"`	Target language: `auto` (detect), `zh`, `en`

Each provider has its own path, model, and prompt configuration. Switching providers does not affect other providers' settings.

CodeBuddy

Setting	Default	Description
`rosetta.providers.CodeBuddy.path`	`"codebuddy"`	Path to CLI executable
`rosetta.providers.CodeBuddy.model`	`""`	Model (dropdown with 26 available models)
`rosetta.providers.CodeBuddy.prompt`	`"Translate ... {lang} ..."`	Translation prompt template

Claude Code

Setting	Default	Description
`rosetta.providers.ClaudeCode.path`	`"claude"`	Path to CLI executable
`rosetta.providers.ClaudeCode.model`	`""`	Model (supports `sonnet`/`opus` aliases or full names)
`rosetta.providers.ClaudeCode.prompt`	`"Translate ... {lang} ..."`	Translation prompt template

Codex

Setting	Default	Description
`rosetta.providers.Codex.path`	`"codex"`	Path to CLI executable
`rosetta.providers.Codex.model`	`""`	Model (`gpt-5.4`, `gpt-5.4-mini`, `gpt-5.3-codex`, etc.)
`rosetta.providers.Codex.prompt`	`"Translate ... {lang} ..."`	Translation prompt template

The {lang} placeholder in prompt templates is automatically replaced with Chinese or English.

npm install
npm run compile   # build once
npm run watch     # rebuild on change

Press F5 in VS Code / Cursor to launch the Extension Development Host for debugging.