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.
context window — The maximum amount of text a model can consider at once — its working memory for the current conversation or task.
system prompt — The standing instructions a model receives before any user input — defining its role, rules, tools, and tone for the whole conversation.
Why it matters
Titling and vision side-tasks do not need your main loop's model. Offloading them in config.yaml cuts session cost, and the 64K context windowThe maximum amount of text a model can consider at once — its working memory for the current conversation or task.Full definition → floor explains most small-model setups that get rejected outright.