Can it identify API endpoints and integrations?

Yes, it includes specific patterns for identifying REST controllers, GraphQL resolvers, and Express routes, as well as external service calls and SDK usage.

What programming languages does it support?

The skill includes predefined patterns for C#, Java, and TypeScript, but its core methodologies for structural discovery apply to any major programming language.

Does this skill help in creating a domain model?

Absolutely. It focuses on Phase 2: Domain Model Extraction, which finds entity definitions and maps their relationships and constraints to document the 'ubiquitous language' of the system.

How does this skill help with legacy codebases?

It uses systematic search patterns and heuristics to find entities, validation logic, and workflows, creating a clear map of how a system works even when documentation is missing.

Codebase Analysis & Reverse Engineering

Name: Codebase Analysis & Reverse Engineering
Author: DoubleslashSE

byDoubleslashSE

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Learning & Documentation

Extracts business requirements and domain logic from existing codebases to facilitate brownfield development and system documentation.

The Codebase Analysis skill empowers Claude to perform systematic deep-dives into existing 'brownfield' projects to reverse-engineer technical specifications and business intent. By leveraging tools like Grep and LSP, it identifies domain models, extracts complex business rules, maps external integrations, and documents user capabilities. This skill is essential for developers and analysts who need to quickly understand a legacy system's inner workings, onboard to new projects, or create documentation where none exists.

Key Features

01User capability and workflow documentation

02Language-specific pattern recognition for C#, Java, and TypeScript

03Business rule extraction and validation logic identification

04Automated domain model and entity relationship mapping

05External integration and API contract discovery

061 GitHub stars

Use Cases

01Performing architectural audits to map data flows and system dependencies

02Extracting business logic for system refactoring or cloud migrations

03Onboarding to a legacy project with missing or outdated documentation

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add doubleslashse/claude-marketplace codebase-analysis

For use in Claude.ai and ChatGPT

Download Skill