How does this skill handle Newtonsoft.Json migrations?

It provides a clear mapping of attributes and settings (like NullValueHandling to DefaultIgnoreCondition) and shows how to handle polymorphism using .NET 7+ discriminators.

When should I choose Protobuf over JSON?

Protobuf is preferred for internal service-to-service communication (gRPC), actor systems, and scenarios where compact payload size and strict schema versioning are critical.

Why use System.Text.Json source generators instead of reflection?

Source generators move type analysis to compile time, which significantly improves startup performance, reduces memory usage, and is required for Native AOT compatibility.

Is BinaryFormatter safe to use in modern .NET?

No. BinaryFormatter is inherently insecure and deprecated. This skill provides modern, secure alternatives like MessagePack or Protobuf to replace it.

.NET Serialization & Performance

Name: .NET Serialization & Performance
Author: bbsbot

bybbsbot

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API Development

Optimizes .NET applications by implementing high-performance, AOT-compatible serialization formats like Protobuf, MessagePack, and System.Text.Json.

This skill provides expert guidance on choosing and implementing the most efficient serialization strategies for modern .NET applications. It prioritizes schema-based formats and Native AOT compatibility, helping developers move away from slow, reflection-heavy libraries like Newtonsoft.Json toward high-performance alternatives like Protobuf and MessagePack. By following these patterns, developers can ensure their distributed systems are version-safe, secure from legacy vulnerabilities, and optimized for minimal wire size and maximum throughput.

Key Features

01Implementation of System.Text.Json source generators for Native AOT compatibility

02Security-focused guidance to eliminate dangerous formats like BinaryFormatter

03Patterns for maintaining wire compatibility and versioning in distributed systems

04Best practices for schema-based formats including Protobuf and MessagePack

051 GitHub stars

06Detailed migration paths from legacy Newtonsoft.Json to modern .NET standards

Use Cases

01Implementing version-safe messaging for gRPC, Akka.NET, or Event Sourcing

02Optimizing REST API performance and reducing memory overhead in ASP.NET Core

03Refactoring legacy .NET codebases for modern Native AOT deployment targets

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add bbsbot/mac-md-win serialization

For use in Claude.ai and ChatGPT