How do I install the Refactor Structural Duplication skill?

Run npx skillmds add majiayu000/refactor-structural-duplication in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Refactor Structural Duplication safe to use?

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Which AI agents work with Refactor Structural Duplication?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Refactor Structural Duplication free to use?

Yes. Installing skills from SkillMD is free. This skill is licensed under MIT.

Who published Refactor Structural Duplication?

majiayu000 (@majiayu000) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Refactor Structural Duplication by majiayu000

Name: Refactor Structural Duplication
Rating: 4.2 (5 reviews)
Author: majiayu000

Refactor Structural Duplication

Identify structurally duplicate logic (pipeline-spine duplication) across semantically distinct modules. Use when multiple implementations share the same orchestration skeleton (e.g., bounds→shape→chunking→reduction→wrap), and unification may require subtle abstraction. Produces a duplication map and a safe extraction/refactor plan.

majiayu000 bd70ea0 2 files · 2.4 KB Updated Sep 9, 2026 567 repo stars

File contents

Instructions

Read all references in references/ before starting.

Goal

Detect and report structural duplication across modules (not copy/paste), especially where:

different domain concepts remain correctly separate, but
the underlying processing pipeline is parallel/duplicated, risking drift.

When unification likely requires subtle abstraction, produce a staged plan that can be executed safely.

Scope

This skill does not enforce “thin public facades” or restructure public APIs.
This skill does identify shared pipeline spines and propose extraction targets and abstraction seams.

Signals

Activate when any of the following are true:

Multiple modules implement similar orchestration stages (even with different operators).
There are parallel implementations of structurally similar functionality in the codebase.
The agent (or a developer) is about to re-implement “the same infrastructure again” for a new product.

Procedure

Follow references/03_PROCEDURE.md.

Output

Produce a single Markdown report using references/05_OUTPUT_TEMPLATE.md. If abstraction is needed, include a staged plan using references/04_REFACTOR_PLAN_TEMPLATE.md.

Frequently asked questions