Hi, I'm Ertugrul Kara

Schema-First Prompt Engineering for Backend Developers

Treat LLMs Like Typed APIs, Not Chatbots. Continue reading on The Syntax Hub »

Stop Designing APIs for Humans. Design Them for LLMs.

1. Your Client Is Now a Prediction Engine Continue reading on The Syntax Hub »

Stop writing stopwatch code to everywhere, here is a story about automatic method profiling in .NET

Let me tell you about a problem I kept running into. You know that moment when your API starts slowing down, and you’re sitting there… Continue reading on The Syntax Hub »

Building More Secure C# .NET Applications with HashiCorp Vault

Have you ever found yourself hardcoding database passwords or API keys directly in your `appsettings.json` file? If you’re nodding your… Continue reading on The Syntax Hub »

Reduce LLM Token Costs by 60% with TOON Format in C#

Token-Oriented Object Notation — A More Efficient Data Format for LLMs

When building applications with Large Language Models (LLMs), token usage is a critical factor for both cost and performance. We pay for… Continue reading on The Syntax Hub »