AI Tutorials & Practice

Swap a cheap model in behind an expensive one and the obvious way to check it is shadow traffic: send...

People keep asking me how you actually know an agent got better. I collected my answers to the most...

When you sit down to solve a complex puzzle or plan three moves ahead in chess, do you narrate every...

The fine-tune took an hour and a half on a single consumer GPU. Everything that made that hour and a...

Ten smaller LLMs played a chess round robin live: 30 of 37 games ended in repetition. Data, lessons, and the 'kick' rule for slow thinking models.

I once watched a 47-minute pipeline run die because of a typo in a date field. The researcher agent...

LiteLLM is an open-source AI gateway that provides a unified, OpenAI-compatible API for over 100...

Langflow is an open-source, low-code visual framework for building artificial intelligence (AI)...

A practical build note on capture, human review, replay, and knowing what a passing test actually proves.

Ten places I slow down, and the 95% of the diff I leave to the pipeline. Most of a diff deserves a glance. A small part deserves an hour.

Are you the kind of person who enjoys a good philosophical conversation but would rather not have to...

Let's begin with a very fundamental question whose answer is not so obvious. How to design software...

Kavach: building a fraud investigator that knows when a risk score is lying TigerGraph x...

When an LLM application starts handling real users, calling a model API is usually easy. The problems...

Apartments.com has integrated its listing experience with Google Gemini and ChatGPT, allowing people...

When people say we need an open standard for agent identity, I usually agree. The harder question is...

A hands-on experience report on a structured, repeatable, AI-assisted development approach We...

Fraud investigation is rarely a single-query problem. A suspicious transaction may look normal in...

Everyone eventually wants to build their LLM eval set from real traffic. It's the right instinct —...

Live replay of a dead-letter message is a control-plane act. Free inference should not own it. A...

Building an agentic fraud investigator on a 590,742-transaction TigerGraph, what a 0.963 AUC actually measured, and the number we had to withdraw.

OpenAI says its products now reach more than 1 billion weekly active users and 2.5 million...

A pull request stalled on a quiet screenshot from an agent session that looked like performance...

A patch landed with every assertion green. The return values matched the golden file. Then a latency...

An agent's egress allowlist permits the artifact registry because builds need it. That single permitted destination is enough to run a covert...

A suspicious transaction starts an investigation. The harder part is deciding what evidence to...

Why supervisor LLM agents create infinite retry loops and silent token inflation, and how to replace hierarchical supervisor loops with deterministic typed state transitions.

A few weeks ago I promised a technical write-up. Here it is. The two questions I get most are: how...

Everyone is obsessed with making AI remember more. Nobody is working on making it forget. And that's a serious technical problem nobody talks about.

AI observability is the practice of tracking what an AI system did and why. That means looking...

We have officially entered the era of vibe coding. With AI-assisted editors and terminal agents like...

In the last article we built a working chat endpoint. Send a message, get a reply. It felt like...

Disco Doodle is my hobby site — free, no-signup drawing prompt generators, a division of my little...

I had an idea, more of a stress-test really. I have been building my IDE for a few months now, it's...

This is a submission for the Sanity Challenge, Path Two: Vibe-Code Something Strange What I...

Claude Code writes every session to disk as JSONL: one line per message, tool call and result, and a...

I spent a week adding per-agent cost tracing to a multi-agent AWS Bedrock and Strands crew. It returned a perfect answer, showed 200 OK, and still billed ~1.4x. Here is how to catch that silent waste, read-only and at $0.

I noticed it first in a Slack channel, of all places. A coworker dropped a link to some new "agent...

Opus 5.5 shipped on September 22, and its replies read differently: answer first, less...

This is the experience I want reading with Luminary to feel like — not a feature list, but a day in...