Opus 4.5 Migration

About

Streamlines the transition to Claude Opus 4.5 by automating the migration of model strings and API configurations across major platforms including Anthropic, AWS Bedrock, Google Vertex AI, and Azure. Beyond simple string replacement, this skill provides intelligent prompt adjustments to address known behavioral differences in Opus 4.5, such as tool overtriggering, over-engineering tendencies, and code exploration issues. It ensures a smooth upgrade path by handling platform-specific requirements like the effort parameter and managing the removal of unsupported beta headers while preserving codebase integrity.

Key Features

• Removal of unsupported beta headers with contextual code commenting
• Intelligent prompt adjustments to prevent tool overtriggering and over-engineering
• Automated model string replacement for Anthropic API, AWS Bedrock, Google Vertex AI, and Azure
• Platform-specific configuration for high-effort processing parameters
• XML-based prompt optimization for frontend design and code exploration
• 47,204 GitHub stars

Use Cases

• Standardizing AI model configurations across multi-cloud environments including AWS, GCP, and Azure
• Optimizing system prompts to fix behavioral regressions like over-engineering or unnecessary file creation
• Upgrading an existing application from Sonnet 3.5 or Opus 4.1 to the flagship Opus 4.5 model