Unengineered | Harsh Joshi | Substack

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Recent posts

Etiquette of a Good Software!

A good software doesn’t just work, it behaves. We need better-mannered ones.

Nov 6, 2025 • Harsh Joshi

I played with GPT OSS

I spent the last 24 hours playing with OpenAI's GPT-OSS models. Downloaded them, broke them, fixed them, and tried to understand why everyone's losing…

Aug 7, 2025 • Harsh Joshi

The Banana Context Theory

AI context windows behave exactly like bananas. Not metaphorically. Not abstractly. Exactly like bananas.

Jul 17, 2025 • Harsh Joshi

Does your AI agree with everything you say?

Hallucinations are often obvious. Sycophancy sounds smart and that's what makes it dangerous. But what is this new term - "Sycophancy"?

Jul 14, 2025 • Harsh Joshi

It's not a bug, it's a probability

May 30, 2025 • Harsh Joshi

AI

The '2023 vs 2025' Gateway Problem!

In 2023, the AI gateway problem was simple: "We call OpenAI. Sometimes it's down. We need a fallback. In 2025, the goal is Intelligence.

Dec 25, 2025 • Harsh Joshi

Etiquette of a good agent!

We’ve all built agents that can reason, plan, and act, yet most still barge into the system like toddlers with API keys burning through context windows.

Nov 11, 2025 • Harsh Joshi

I played with GPT OSS

I spent the last 24 hours playing with OpenAI's GPT-OSS models. Downloaded them, broke them, fixed them, and tried to understand why everyone's losing…

Aug 7, 2025 • Harsh Joshi

The Banana Context Theory

AI context windows behave exactly like bananas. Not metaphorically. Not abstractly. Exactly like bananas.

Jul 17, 2025 • Harsh Joshi

Does your AI agree with everything you say?

Hallucinations are often obvious. Sycophancy sounds smart and that's what makes it dangerous. But what is this new term - "Sycophancy"?

Jul 14, 2025 • Harsh Joshi

It's not a bug, it's a probability

May 30, 2025 • Harsh Joshi

System Design is Broken :\

No it is perhaps not. We are engineers. We build systems, we try to stay sane doing it but how does the design of deterministic systems evolve for non…

May 26, 2025 • Harsh Joshi

How to build an MCP Server [If you haven’t already]

Nothing that is not already out there. One of many entrypoints to getting started with building your own MCP servers. For you if you haven't yet built…

Apr 20, 2025 • Harsh Joshi

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