Claude Code Agent Loop Deep Dive (5): The QueryEngine Main Loop as a State Machine
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The first four posts explored individual mechanisms inside the loop: tool declarations, approval, hooks, parallel scheduling, stop-reason handling, and recovery. This post puts them together. The heart of Claude Code is not the familiar five-line pseudo-loop. It is an explicit state machine . Befor…
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- 2026-10-14 02:05 · DEV Community — AI
Claude Code Agent Loop Deep Dive (5): The QueryEngine Main Loop as a State Machine