Andrew Ng on the fundamentals that let you steer a coding agent
Source
x.com
Author
Andrew Ng
Date
Context
Andrew Ng argues that software fundamentals help developers tell coding agents which tradeoffs an application requires. His article makes data design a concrete example: deciding what to store and how it will be accessed affects cost, reliability, and later changes, and requires context windowThe maximum amount of text a model can consider at once — its working memory for the current conversation or task.Full definition → from the person building the application.
This connects with his earlier distinction between syntax and concepts. An AI agentAn AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.Full definition → can supply unfamiliar language syntax while the developer supplies priorities and judges architectural choices. The article offers a skills framework; it does not measure how much those skills improve developer performance.
Terms in this piece · Glossary
context window — The maximum amount of text a model can consider at once — its working memory for the current conversation or task.
AI agent — An AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.
