Claude Opus 4 5 Migration
Skill ActiveMigrate prompts and code from Claude Sonnet 4.0, Sonnet 4.5, or Opus 4.1 to Opus 4.5. Use when the user wants to update their codebase, prompts, or API calls to use Opus 4.5. Handles model string updates and prompt adjustments for known Opus 4.5 behavioral differences. Does NOT migrate Haiku 4.5.
To facilitate the transition of existing AI prompts and codebases to the latest Claude Opus 4.5 model, ensuring compatibility and leveraging new features.
Features
- Migrates model strings for Anthropic API, AWS Bedrock, Google Vertex AI, and Azure AI Foundry.
- Adjusts prompts to address known Opus 4.5 behavioral differences.
- Handles removal of unsupported beta headers.
- Provides guidance on configuring the 'effort' parameter for Opus 4.5.
- Offers categorized prompt snippets for specific issues like tool overtriggering and over-engineering.
Use Cases
- Updating API calls to use Opus 4.5 model strings.
- Refining existing prompts to align with Opus 4.5's behavior.
- Troubleshooting issues caused by model version changes.
- Ensuring codebases are compatible with the latest Claude Opus model.
Non-Goals
- Migration of Haiku 4.5 models.
- General code refactoring or feature development beyond migration needs.
- Automatic code generation for entirely new functionalities.
License
- info:License usabilityThe license is mentioned in the LICENSE.md file as 'All rights reserved. Use is subject to Anthropic's Commercial Terms of Service', which is not a standard SPDX identifier.
Trust
- warning:Issues AttentionOpen issues (9462) significantly outnumber closed issues (22831) in the last 90 days, indicating slow response times.
Installation
First, add the marketplace
/plugin marketplace add anthropics/claude-code/plugin install claude-opus-4-5-migration@claude-code-pluginsQuality Score
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