How does this skill detect code similarity?

It uses the similarity-ts tool to perform semantic analysis on your TypeScript files, identifying blocks that are structurally or logically similar even if variable names or spacing differ.

Can I limit the scan to specific parts of my project?

Yes, the skill allows you to target specific directories, such as 'src/' or specific feature folders, to focus your refactoring efforts.

Can I adjust the sensitivity of the duplication detection?

Yes, you can configure the threshold (e.g., 0.8 for 80% similarity) and the minimum number of lines to filter out small, coincidental matches.

What kind of commonization patterns does it suggest?

It suggests specific strategies like utility function extraction, implementing base classes or interfaces, using generics for parameter-only differences, or creating centralized configuration files.

Does this skill automatically modify my source code?

No, it acts as an intelligent analyst that provides a detailed refactoring plan and recommendations, allowing you to review and guide the implementation of common patterns.

TypeScript Code Similarity & Refactoring

Name: TypeScript Code Similarity & Refactoring
Author: DIO0550

byDIO0550

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Detects duplicate TypeScript code patterns and generates actionable refactoring plans to improve codebase maintainability.

The code-similarity-ts skill empowers developers to clean up technical debt by identifying semantically similar code blocks across TypeScript projects. By leveraging the similarity-ts tool, it analyzes codebases for structural redundancies, categorizes duplication by priority based on similarity scores, and provides specific architectural recommendations—such as utility functions, base classes, or generic patterns—to streamline code and reduce maintenance overhead.

主な機能

01Semantic duplication detection using similarity-ts with adjustable thresholds

021 GitHub stars

03Actionable refactoring recommendations including generics and utility extraction

04Comprehensive reporting of duplicate locations and line numbers

05Automated prioritization of refactoring tasks (High, Medium, Low)

06Structural analysis across multiple files and directories

ユースケース

01Identifying common patterns to extract into shared utility libraries or internal frameworks

02Reducing technical debt in large TypeScript repositories by consolidating redundant logic

03Auditing code quality during refactoring phases or prior to major software releases

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add dio0550/d-market code-similarity-ts

For use in Claude.ai and ChatGPT

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