Next steps

Steer how often and how deeply Claude thinks with effort levels, system prompt guidance, and per-message steering, and understand thinking's cost and pricing.

Walk through a complete two-turn tool-use round trip that preserves thinking blocks correctly, and see how interleaved thinking changes the flow.

Find out whether your Messages API integration edits conversation history, and replace each edit with the API feature that keeps earlier thinking blocks valid.

Diagnose and fix the most common thinking failures: configuration 400 errors, empty or missing thinking blocks, max\_tokens stops, and cache misses.

Control how many tokens Claude uses when responding with the effort parameter, trading off between response thoroughness and token efficiency.