Why Your Prompt Is Only 5% of What the Model Sees (opens in new tab)

Most developers think they're prompting AI. They're actually injecting a tiny message into a much larger machine — and the machine is mostly running without them. Here's the uncomfortable math: in production AI systems, the user's actual prompt is often less than 5% of the total context sent to the model. The other 95%? System instructions, retrieved documents, conversation history, injected data, tool results, and examples the developer constructed before your message even arrived. This dist...