What are AI agents? Wikipedia definition: AI agents are a class of intelligent agents that can pursue goals, use tools, and take actions with varying degrees of autonomy. My definition in 2026: AI agents are the interface between human and foundation models. How are AI agents different from using web chats? Ability to use local tools e.g., read, edit, grep, bash to edit your your local files or run bash Rscript agent_written_r_script.R. Delegate specific projects to specialist subagents. More consistent prompts via skills. Should I use AI agents? Compared to just using chat-boxes, using AI agents raise additional risks: