The ReAct Loop: How Every AI Agent Actually Works
This story is from 2026-10-05. It is preserved in the archive; the latest stories are on the live feed.
Throughout the AI System Design series we follow Mailmind, a fictional AI email assistant that reads an inbox, triages messages, and drafts replies. It is our running example. Every AI agent that checks its work, uses external tools, or recovers from errors runs the same core loop: ReAct. The model…
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- 2026-10-05 13:00 · DEV Community — AI
The ReAct Loop: How Every AI Agent Actually Works