Agent Frameworks

What agent loop patterns work well with Claude?

QUICK ANSWER

Claude excels in ReAct (Reasoning and Acting) loops, Plan-and-Solve patterns, and multi-agent reflection loops due to its strong contextual compliance and structural tool execution.

Effective Patterns

  • ReAct: Alternating reasoning steps (thought) and tool calls (act). Excellent for search and database query navigation.
  • Plan-and-Solve: Claude generates a step-by-step implementation plan, executes each step, and uses a reflection loop to self-correct failures.
  • Reflection / Critic: An assistant agent generates code, and a separate critic agent validates the output, sending feedback to the creator for iteration.
Verified against: Anthropic Agentic Design Patterns Guide