Style-Coach-MCP
An advanced cover letter coaching tool powered by data-driven analysis. It helps users improve their job applications by analyzing tone, keywords, and structure based on 19,000+ successful cover letter examples and corporate strategy reports.
Features
- Success DNA Injection
Analyzes job-specific successful cover letters to extract high-frequency keywords. If you apply for a 'Marketing' role, it checks if you used industry-standard terms found in successful applications.
- Strategy Report Integration (Dual Mode)
Checks if your text aligns with both the Company's Core Values (Organization) and the Job's Key Competencies (Role). It loads strategy documents to provide context-aware feedback.
- Cliche Cleaner
Detects and warns about overused, vague expressions like "I will work hard" or "learning attitude" that recruiters often dislike.
- Power Word Injector
Identifies passive or weak verbs (e.g., "did", "participated") and suggests strong, active alternatives (e.g., "spearheaded", "achieved", "optimized") to enhance professionalism.
- Readability Check
Enforces structural rules for better readability, such as keeping sentences under 80 characters and ensuring the first sentence contains key results (Head-first structure).
Performance Optimization
This MCP uses a Pre-computation Strategy to ensure high performance. Instead of parsing thousands of data files at runtime, it processes raw data during the build phase into a lightweight JSON cache.
- Server Startup: < 100ms
- Memory Usage: Optimized (Loads only essential keyword maps)
Installation & Setup
- Prerequisites
- Node.js (v16 or higher)
- Data files (JSON/DOCX) placed in the designated data directory (see Data Privacy).
- Install Dependencies
npm install
- Build (Includes Pre-computation)
npm run build
This command runs the pre-processing script to generate 'dist/data_cache.json' and then compiles the TypeScript code.
- Configure Claude Desktop
Add the following to your claude_desktop_config.json:
{ "mcpServers": { "style-coach": { "command": "node", "args": [ "C:\\Users\\jyokm\\OneDrive\\Desktop\\coverletter\\Style-Coach-MCP\\dist\\index.js" ] } } }
Usage
Ask Claude to analyze your cover letter:
"Here is my cover letter for a Marketing role at CJ CheilJedang. Please analyze it using Style Coach."
Claude will call the 'coach_cover_letter' tool with the text, role ('Marketing'), and organization ('CJ CheilJedang').
Data Privacy Notice
This repository contains only the Logic and Code. Actual training data (19,000+ cover letters) and corporate strategy reports are NOT included due to privacy and copyright reasons.
To use your own data:
- Set the 'COVERLETTER_DATA_DIR' environment variable to your data path.
- Ensure your data follows the expected structure (JSON array for cover letters, DOCX/MD for strategies).
- Run 'npm run build' to generate the cache.
License
ISC
