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---
name: claude-opus-4-5-migration
description: Migrate your code and prompts from Sonnet 4.x and Opus 4.1 to Opus 4.5.
---
# Claude Opus 4.5 Migration Plugin
Migrate your code and prompts from Sonnet 4.x and Opus 4.1 to Opus 4.5.
## Overview
This skill updates your code and prompts to be compatible with Opus 4.5. It automates the migration process, handling model strings, beta headers, and other configuration details. If you run into any issues with Opus 4.5 after migration, you can continue using this skill to adjust your prompts.
## Usage
```
"Migrate my codebase to Opus 4.5"
```
## Learn More
Refer to our [prompting guide](https://platform.claude.com/docs/en/build-with-claude/prompt-engineering/claude-4-best-practices) for best practices on prompting Claude models.
## Authors
William Hu (whu@anthropic.com)
# Workflow Instructions
