Does this skill support Haiku 4.5 migration?

No, this specific skill focuses on migrating from Sonnet 4.0, Sonnet 4.5, and Opus 4.1 to Opus 4.5 only.

What happens to legacy beta headers during migration?

The skill automatically removes the context-1m-2025-08-07 beta header as it is currently unsupported in Opus 4.5, preventing API errors.

How does it handle behavioral changes in Opus 4.5?

It includes logic to soften aggressive tool-triggering language and adds snippets to prevent over-engineering and improve code exploration sensitivity.

Which platforms are covered by the model string updates?

The skill provides automated updates for the Anthropic API (1P), AWS Bedrock, Google Vertex AI, and Azure AI Foundry.

Claude Opus 4.5 Migration Guide

Name: Claude Opus 4.5 Migration Guide
Author: Microck

byMicrock

•

API開発

Automates the migration of model strings and prompt configurations from Claude Sonnet and previous Opus versions to Claude Opus 4.5.

This skill facilitates a seamless transition to Claude Opus 4.5 by automatically identifying and updating model strings across primary platforms including Anthropic API, AWS Bedrock, Google Vertex AI, and Azure AI Foundry. Beyond simple string replacement, it intelligently adjusts system prompts to mitigate common behavioral shifts unique to Opus 4.5—such as tool overtriggering and over-engineering—while ensuring the removal of unsupported legacy beta features and the correct implementation of the new model effort parameters.

主な機能

01Automated model string replacement for Anthropic, Bedrock, Vertex AI, and Azure Foundry

02Automatic removal of unsupported 1M context beta headers

03Configuration of 'high' effort parameters for optimized reasoning

0481 GitHub stars

05Context-aware prompt snippets for frontend design and code exploration improvements

06Smart prompt softening to prevent tool overtriggering and excessive verbosity

ユースケース

01Refining complex system prompts to align with Opus 4.5's increased instruction following

02Standardizing AI model configurations across multi-cloud enterprise deployments

03Upgrading legacy Claude 3 or 4.1 backends to the latest Opus 4.5 model

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