Which cloud providers are supported for model string updates?

It supports the Anthropic 1P API, AWS Bedrock, Google Vertex AI, and Azure AI Foundry.

How does it handle the 1M context window beta?

The skill removes the 'context-1m-2025-08-07' beta header from code, as this specific beta is not yet supported with the Opus 4.5 release.

What is the 'effort' parameter mentioned in the migration?

Opus 4.5 supports an effort parameter which, when set to 'high', signals the model to use more reasoning steps for complex tasks.

Does this skill migrate Claude Haiku models?

No, this skill is specifically designed for migrations from Sonnet 4.0, Sonnet 4.5, and Opus 4.1 to Opus 4.5. It explicitly excludes Haiku model migration.

Will this skill automatically change my system prompts?

By default, the skill focuses on updating model strings. It only applies behavioral prompt adjustments (like fixing over-engineering) if you explicitly request them or report specific issues.

Claude Opus 4.5 Migration

Name: Claude Opus 4.5 Migration
Author: Microck

byMicrock

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110

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Cloud Infrastructure

Migrates codebase model strings and prompt configurations from legacy Claude models to the Opus 4.5 architecture.

This skill automates the transition of your applications and prompts from legacy Claude models (Sonnet 4.0, Sonnet 4.5, and Opus 4.1) to the high-performance Opus 4.5 model. It systematically identifies and updates model strings across multiple providers including Anthropic, AWS Bedrock, Google Vertex, and Azure, while also adjusting API parameters and removing unsupported beta headers. Beyond simple string replacement, it provides intelligent prompt engineering adjustments to mitigate behavioral shifts like tool overtriggering or over-engineering, ensuring your AI workflows remain reliable and efficient on the latest hardware.

Key Features

01Configures high-effort parameters for improved reasoning performance

02Specialized snippets for frontend design and deep code exploration

03Automated removal of unsupported 1M context beta headers

04Intelligent prompt adjustments for tool overtriggering and thinking sensitivity

05Multi-platform model string updates for Anthropic, AWS, Google Cloud, and Azure

06110 GitHub stars

Use Cases

01Refactoring complex system prompts to prevent over-engineering in Opus 4.5 outputs

02Upgrading an enterprise production environment from Claude Sonnet 4.0 to Opus 4.5

03Standardizing model identifiers across multi-cloud deployments on Bedrock and Vertex AI

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add microck/ordinary-claude-skills claude-opus-4-5-migration

For use in Claude.ai and ChatGPT

Download Skill