Does this skill support Haiku models?

No, this specific skill is designed for migrating to Opus 4.5 from Sonnet 4.0/4.5 or Opus 4.1; it does not handle Haiku 4.5 migrations.

How does it handle Opus 4.5's tendency to over-engineer?

The skill can inject specific prompt snippets and soften aggressive language in system prompts to ensure the model remains concise and focused on requested features.

Will it automatically change all my prompts?

No, behavioral prompt adjustments are only applied if you explicitly request them or report specific issues like overtriggering or poor code exploration.

Which platforms are supported for model string updates?

The skill supports the native Anthropic API (1P), AWS Bedrock, Google Vertex AI, and Azure AI Foundry.

What happens to the 1M context beta header during migration?

The skill automatically removes the context-1m-2025-08-07 beta header as it is not yet supported with Opus 4.5, adding a comment to note the change.

Opus 4.5 Model Migration

Name: Opus 4.5 Model Migration
Author: lusya123

bylusya123

0•

Infraestructura en la Nube

Automates the transition of codebases and prompts from previous Claude models to the latest Claude 4.5 Opus model.

This skill streamlines the upgrade process to Claude 4.5 Opus by automatically identifying and replacing legacy model strings across various platforms including AWS Bedrock, Google Vertex AI, and Anthropic's native API. Beyond simple string replacement, it intelligently adjusts system prompts to mitigate Opus 4.5-specific behaviors such as tool overtriggering, over-engineering, and sensitivity to 'thinking' terminology, ensuring your applications leverage the full potential of the new model while maintaining operational stability.

Características Principales

010 GitHub stars

02Automatic model string updates for Anthropic API, Bedrock, Vertex AI, and Azure

03Configuration guidance for the high-effort parameter in complex tasks

04Intelligent code exploration and frontend design prompt enhancements

05Prompt optimization to prevent tool overtriggering and unnecessary abstractions

06Detection and removal of unsupported beta context-1m headers

Casos de Uso

01Upgrading existing production applications from Claude 3.5 Sonnet to 4.5 Opus

02Refactoring prompt engineering templates to account for Opus 4.5 behavioral nuances

03Cleaning up legacy API headers and ensuring compatibility across multi-cloud AI deployments

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add lusya123/cloudcode claude-opus-4-5-migration

For use in Claude.ai and ChatGPT

Download Skill