Anthropic Releases Official Prompting Guide for Claude Opus 5: Key Recommendations
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25.07.2026 15:25
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1 min read
Anthropic has published an official guide on crafting prompts for its language model Claude Opus 5. In the instructions, the developers emphasize proper query configuration to avoid excessive token usage.
Requests for Brevity and Subagent Control
The main difference of Opus 5 from previous versions is its tendency to comment on its own actions in detail and automatically launch subagents to complete tasks.
To prevent the model from exhausting its entire token limit on reasoning, Anthropic recommends:
- Adding direct instructions in prompts for brevity and conciseness in responses.
- Limiting deep process detail when it is not directly necessary.
Excluding Unnecessary Instructions
The developers specifically note that prompts should omit requests like “double-check” or “make sure the answer is correct.”
In Claude Opus 5, the self-check algorithm is built in by default—the model automatically verifies results during generation, so additional instructions in the prompt text become redundant.
Where to Access the Guide
The full version of the prompt engineering guide is available in the official Anthropic documentation.
