Can I use this for non-English documents?

Yes, it supports a wide range of languages including German, French, Spanish, and Portuguese by passing the appropriate language code to the API.

Does this skill require an internet connection?

No, this skill is designed to connect to a local LanguageTool server running on your machine, ensuring high performance and data privacy.

How does it handle code blocks in Markdown files?

The skill provides patterns to identify markdown syntax, allowing it to skip code blocks and focus only on the prose text.

Can I customize which grammar rules are applied?

Yes, you can programmatically enable or disable specific rule IDs, such as disabling passive voice checks for informal documentation.

LanguageTool Local Grammar Checker

Name: LanguageTool Local Grammar Checker
Author: pknull

bypknull

0•

Learning & Documentation

Automates grammar, style, and punctuation checks using a local LanguageTool server to improve document and code quality.

The LanguageTool skill integrates a local LanguageTool server directly into your Claude Code workflow, providing a privacy-focused solution for linguistic analysis. It allows you to perform sophisticated grammar, style, and punctuation audits on technical documentation, READMEs, and markdown files without sending data to external cloud services. With support for multiple languages and the ability to enable or disable specific rules—such as passive voice or technical jargon filters—it ensures your project communication remains professional and clear.

Key Features

01Markdown-aware processing to ignore code blocks and technical syntax

02Support for 20+ languages including English (US/GB), German, French, and Spanish

030 GitHub stars

04Comprehensive checks for grammar, style, punctuation, and spelling errors

05Advanced rule filtering to customize checks for specific document types

06Local server integration (localhost:8081) for maximum data privacy and speed

Use Cases

01Ensuring consistency in multi-language projects through regional dialect support

02Automating content quality audits within a developer writing workflow

03Proofreading technical documentation and README files for professional clarity

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add pknull/asha-marketplace languagetool

For use in Claude.ai and ChatGPT

Download Skill