prompt-architect

To calibrate system prompts for Claude Opus and Sonnet 4.5/4.6, apply a structured methodology using explained conditionals, positive framing, and XML format indicators to minimize drift and improve model compliance.

Migrating Claude 3.5 prompts to current model behavior involves auditing existing instructions and updating them with explicit conditionals, positive framing, and XML format indicators aligning with Opus/Sonnet 4.5/4.6 references.

Writing a CLAUDE.md file that persists across chats requires using project instruction patterns with explained conditionals and positive framing to reduce behavioral drift in long conversations.

Claude prompts drift in long conversations when lacking structured design. Using project instruction patterns with explicit conditionals, positive framing, and XML format indicators minimizes drift and maintains compliance.

You can audit existing Claude prompts for Opus and Sonnet 4.5/4.6 compatibility by running them through a prompt-quality workflow that checks alignment with current references, thinking configurations, and framing guidelines.

You need XML format indicators in Claude system prompts when defining structured instructions; they help minimize behavioral drift and improve compliance with current Opus/Sonnet 4.5/4.6 model expectations.