Does this skill support Haiku models?

No, this migration skill specifically targets transitions to Opus 4.5 and explicitly excludes Haiku model migrations.

Will it automatically change my prompt logic?

By default, it only updates model strings. It applies prompt adjustments for behavior like over-engineering only if you report specific issues or explicitly request them.

Does it handle the 1M context window header?

It removes the 'context-1m-2025-08-07' beta header because it is not yet supported with Opus 4.5, preventing API errors.

Which platforms are supported for model string updates?

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

What is the 'effort' parameter?

Opus 4.5 supports an 'effort' parameter to control reasoning depth; this skill sets it to 'high' to ensure maximum output quality.

Claude Opus 4.5 Migration Helper

Name: Claude Opus 4.5 Migration Helper
Author: akiojin

byakiojin

•

API 开发

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

This skill streamlines the migration process from Claude Sonnet 4.0, Sonnet 4.5, or Opus 4.1 to the latest Opus 4.5 model. It automatically identifies and updates model identifiers across various platforms—including Anthropic API, AWS Bedrock, Google Vertex AI, and Azure—while handling the removal of unsupported beta headers. Beyond simple string replacement, it provides intelligent prompt engineering adjustments to mitigate behavioral shifts such as tool overtriggering, over-engineering, or conservative code exploration, ensuring your application leverages the full power of Opus 4.5 without regressions.

主要功能

01Identification and removal of unsupported context window beta headers

02Automated model string updates for Anthropic, AWS Bedrock, Vertex AI, and Azure platforms

03Behavioral prompt optimization to prevent tool overtriggering and over-engineering

04Automatic configuration of high-effort reasoning parameters for optimal performance

051 GitHub stars

06Tailored snippets for improving frontend design quality and code exploration depth

使用场景

01Refactoring prompt libraries to optimize for Opus 4.5's specific reasoning and instruction-following patterns

02Upgrading a production application from Claude 3.5 Sonnet to Opus 4.5 across multiple cloud providers

03Cleaning up legacy API headers and configurations during a major model version jump

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add akiojin/llm-router claude-opus-4-5-migration

For use in Claude.ai and ChatGPT

Download Skill