Gather-Act-Verify Loop

Description

The paper's name for the core agentic three-phase loop Anthropic documentation describes: (1) gather context, (2) take action, (3) verify results, repeated until the task is complete. Implemented in Claude Code as queryLoop()'s iteration. Agent-design guidance notes that 'ground truth from the environment' at each verify step assesses progress, and harness-design guidance warns agents tend to 'confidently praise mediocre work,' motivating separation of generation from evaluation.

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Sources

src-20260423-0cff68d3291b