What is the recipe-reverse-engineer skill?

It is an automated workflow for Claude Code that analyzes existing source code to generate accurate Product Requirement Documents (PRDs) and Technical Design Docs.

Does it support specific software architectures?

Yes, you can specify a reference architecture such as MVC, Clean, Layered, or Hexagonal to guide the discovery and documentation process.

Do I need to review the output manually?

While the skill can run autonomously, it includes a recommended human-review configuration that allows you to confirm the discovered scope and review documents before they are finalized.

Can it distinguish between frontend and backend code?

Yes, it features a full-stack mode that invokes specialized agents to create separate, context-aware design documents for backend services and frontend component hierarchies.

How does it ensure the documentation is accurate?

The skill utilizes a specialized Code Verifier agent that cross-references generated documentation claims against the actual implementation, requiring a minimum consistency score before proceeding.

Reverse Engineer PRD & Design

Name: Reverse Engineer PRD & Design
Author: shinpr

byshinpr

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275

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Learning & Documentation

Generates comprehensive PRDs and technical design documentation from existing codebases using an automated discovery and verification workflow.

The recipe-reverse-engineer skill automates the complex process of documenting legacy or undocumented projects by analyzing source code to reconstruct functional and technical requirements. It employs a sophisticated multi-agent orchestration that handles scope discovery, document generation, and rigorous code-to-doc verification to ensure the final output accurately reflects the implementation. Whether you need a high-level Product Requirement Document (PRD) or detailed Backend and Frontend Design Docs, this skill provides a structured path to bridging the gap between your code and its documentation, making it indispensable for system refactoring, onboarding, and architectural audits.

Key Features

01Cross-agent verification loop ensuring high consistency between docs and code

02275 GitHub stars

03Support for fullstack-aware design docs (separate Backend/Frontend modules)

04Architectural pattern recognition for MVC, Clean, and Hexagonal systems

05Automated functional scope discovery and intelligent unit grouping

06Configurable human-in-the-loop review points for quality assurance

Use Cases

01Validating existing documentation against current implementation during refactoring

02Documenting undocumented legacy codebases to establish a functional baseline

03Generating architectural blueprints for onboarding new team members

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add shinpr/claude-code-workflows recipe-reverse-engineer

For use in Claude.ai and ChatGPT

Key Features

01Cross-agent verification loop ensuring high consistency between docs and code

02275 GitHub stars

03Support for fullstack-aware design docs (separate Backend/Frontend modules)

04Architectural pattern recognition for MVC, Clean, and Hexagonal systems

05Automated functional scope discovery and intelligent unit grouping

06Configurable human-in-the-loop review points for quality assurance

Use Cases

01Validating existing documentation against current implementation during refactoring

02Documenting undocumented legacy codebases to establish a functional baseline

03Generating architectural blueprints for onboarding new team members