Research
What Are AI Agents? How They Work and Where They Fall Short
An AI agent is a model that can plan steps and use tools to complete a goal, not just answer a question. Here is what happens under the hood and why supervision still matters.
Olivia Walker
Olivia Walker covers building with AI for Token & Tell: coding assistants, agents, retrieval and the tools developers use.
Research
What Is RAG? Retrieval-Augmented Generation Explained
RAG is the technique that lets an AI assistant answer from your own documents instead of its memory. It is behind most company chatbots and "chat with your files" features.
Research
Prompting vs RAG vs Fine-Tuning: How to Customize an AI Model
There are three main ways to make a general AI model work for your specific needs. Choosing the right one saves a lot of time and money.
AI Tools
AI Coding Assistants Explained: What They Do and How to Use Them Well
From autocomplete to agents that edit whole projects, AI coding tools have changed how software gets written. Here is a map of the options and the habits that keep code quality high.