claude-lang-coach
A Claude Code plugin that turns your daily work into language practice.
日本語 |
한국어 |
中文 |
Français |
Deutsch |
Español
Write in your target language during normal work — get corrections automatically. Write in your native language — learn how to express it. No extra apps, no context switching.
Supported Languages
Any ISO 639-1 pair. Examples:
| Code | Language | Code | Language |
|---|
en | English | ko | Korean |
ja | Japanese | zh | Chinese |
fr | French | pt | Portuguese |
de | German | es | Spanish |
Install
claude plugin marketplace add yu-3in/claude-lang-coach
claude plugin install lang-coach@claude-lang-coach
Restart Claude Code. The auto-detect hook is registered automatically on first session start.
Windows: Requires WSL or Git Bash.
Setup
/lang-coach:setup en ja
Commands
| Command | Description |
|---|
/lang-coach:setup <native> <target> | Set your language pair and enable auto-detect |
/lang-coach:setup autodetect on|off | Toggle auto-detect mode |
/lang-coach:learn <text> | Detailed correction with scoring (target lang) or translation coaching (native lang) |
/lang-coach:learn last | Re-analyze the most recent auto-detect correction in full detail |
/lang-coach:history [N|all] | View correction history, stats, and weak points |
Examples
/lang-coach:learn I goed to the store yesterday # → correction with score
/lang-coach:learn 昨日お店に行きました # → translation coaching
/lang-coach:history # → last 10 corrections
/lang-coach:history all # → full history
Auto-detect
With auto-detect ON, corrections appear at the end of every response automatically — no commands needed.
Update
claude plugin marketplace update claude-lang-coach
claude plugin update lang-coach@claude-lang-coach
Restart Claude Code after updating.
Uninstall
claude plugin uninstall lang-coach@claude-lang-coach
rm -rf ~/.claude-lang-coach
Remove the UserPromptSubmit hook from ~/.claude/settings.json if added.
License
MIT
