Anthropic Claude

    Last verification date: 2026-07-28

    Claude guidance emphasizes clear direct prompts, examples, XML-style structure for complex inputs, long-context organization, tool use, and evaluation. Stable guidance: separate data from instructions and give examples that match edge cases. Model-specific guidance: current model pages and extended-thinking behavior should be checked before production use.

    ## Official sources used

    - [Claude prompt engineering overview](https://docs.anthropic.com/en/docs/build-with-claude/prompt-engineering/overview)

• Claude prompting best practices
• Claude define success and evals
• Claude tool use

  ## Stale quickly
  
  - model-specific prompting pages.
  

  • extended thinking guidance.
  • tool-use syntax.