In 2026, the most powerful way to use Claude is to design a system where Claude prompts itself, checks its own work, and keeps going until the job is done, called a Claude Looping workflow or agentic loop. In June 2026, Boris Cherny, the creator and head of Claude Code at Anthropic, described this shift: "I don't prompt Claude anymore. I have loops running that prompt Claude and figuring out what to do. My job is to write loops." This statement was echoed by Google's Addy Osmani and by Peter Steinberger's viral post that received five million views in under 24 hours. Claude Looping is the process of running Claude inside a repeating cycle where the model takes an action, observes the result, decides what to do next, and repeats until the task is complete, a predefined stopping condition is met, or a budget limit is reached. The simplest definition is a task with a check. Unlike a single prompt that stops when Claude responds, a loop creates a continuous execution cycle that can run for 10 iterations on a focused task, or hundreds of iterations on a complex project. Every Claude loop follows the same four-step cycle.