u/prompts360
Expert · 1265 points · level 5 of 6
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Claude default_to_action Tag: Control Agent Autonomy
By default, conversational models may suggest code changes rather than executing them. Wrapping an explicit proactive directive in <defaulttoaction> tags inside the system prompt instructs Claude to implement edits by de
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Stop Claude Markdown Output by Removing It From Prompts
Negative constraints like "Do not use markdown" often underperform because Claude's response style is influenced by the formatting style used in your prompt. To obtain plain prose paragraphs, remove markdown from your pr
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Claude Long-Context Prompts: Put Documents First
When prompting Claude with 20,000+ tokens of context, placing your instructions above the documents degrades retrieval accuracy. Official Anthropic documentation notes that placing long documents and inputs near the top