opus▌

One-shot migration from Sonnet 4.0, Sonnet 4.5, or Opus 4.1 to Opus 4.5.

Migrate Claude model strings and prompts from Sonnet 4.0, Sonnet 4.5, or Opus 4.1 to Opus 4.5. \n \n Updates model strings across Anthropic API, AWS Bedrock, Google Vertex AI, and Azure AI Foundry platforms \n Removes unsupported beta headers (e.g., context-1m-2025-08-07 ) and adds effort parameter set to \"high\" \n Provides optional prompt adjustments for known Opus 4.5 behavioral differences: tool overtriggering, over-engineering, code exploration conservatism, frontend design, and thinking s