Claude Prompt Engineering

Claude is Anthropic's AI assistant designed to be helpful, harmless, and honest. It excels at long-context tasks, follows complex instructions precisely, and works best with well-structured prompts using XML-style tags.

When to Invoke This Skill

Use this skill when:

• Crafting prompts specifically for Claude/Anthropic models (default: Claude Sonnet 4.5)
• Working with long documents or large context (up to 1M tokens with Sonnet 4.5 beta)
• Using structured prompts with XML-style tags
• Implementing extended thinking for complex reasoning
• Requiring precise instruction following
• Building agentic workflows with parallel tool use

Claude's Identity & Characteristics