New Rules for Context Engineering with Claude 5
Claude 5 can handle a lot of text at once. The model now works best with clear, short prompts. The article explains that the context window has grown, but the quality of the output still depends on how the input is structured. Use a single idea per block. Keep each block under a few sentences. Separate sections with blank lines or headings. This helps the model focus on the right part of the prompt.
When building prompts, follow a pattern similar to the one below:
# Task
Summarize the following article.
# Input
[Insert article text here]
# Output format
- Bullet points
- No more than 5 items
The pattern gives the model a clear start, a clear input, and a clear output format. The article also recommends limiting the number of examples in a few‑shot prompt. Too many examples can fill the context window and push out important details. Use the most relevant examples and keep them short. For more details, see the original post: https://claude.com/blog/the-new-rules-of-context-engineering-for-claude-5-generation-models.
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