---
title: "Discussion on \"100+ Extension Methods: When Breadth Is a Design Decision, Not a Mistake\" | Hashnode"
description: "Discussion on \"100+ Extension Methods: When Breadth Is a Design Decision, Not a Mistake\". The danger of extension method libraries is not the methods — it's the lack of discipline. Here is how I designed 100+ methods that still have a coherent API surface."
url: "https://hashnode.com/posts/100-extension-methods-when-breadth-is-a-design-decision-not-a-mistake/6a47d0b68f40d8f19021b3a3"
---

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# [100+ Extension Methods: When Breadth Is a Design Decision, Not a Mistake](https://powercsharp.hashnode.dev/100-extension-methods-when-breadth-is-a-design-decision-not-a-mistake?utm_source=hashnode&utm_medium=feed)

The danger of extension method libraries is not the methods — it's the lack of discipline. Here is how I designed 100+ methods that still have a coherent API surface.

Jul 3 · 5 min read · powercsharp.hashnode.dev  
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## Written by

[Mario Alberto Arce](https://hashnode.com/@marioarce)

@marioarce · San José, Costa Rica

  
[View profile](https://hashnode.com/@marioarce)

AWS Cloud Architect | Serverless & Event-Driven Systems | Enterprise Modernization (Monolith → Microservices) | .NET & API Architecture

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