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claude-opus-4-5-migration

Migrate Claude Sonnet 4.x and Opus 4.1 model strings and prompts to Opus 4.5.

Updated Apr 8, 2026
Search Tags:#migration#claude#prompts#opus#code-migration#model-strings
One-click install
npx skills add https://github.com/wellnessbrotherjay-debug/ts-residence --skill claude-opus-4-5-migration-wellnessbrotherjay-debug
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: claude-opus-4-5-migration
Source: https://github.com/wellnessbrotherjay-debug/ts-residence/tree/main/.agents/skills/claude-opus-4-5-migration
Command: npx skills add https://github.com/wellnessbrotherjay-debug/ts-residence --skill claude-opus-4-5-migration-wellnessbrotherjay-debug

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Migrate 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.

Core Features & Use Cases

  • Update model strings to Opus 4.5 across platforms (Anthropic API, AWS Bedrock, Google Vertex AI, Azure AI Foundry).
  • Adjust prompts for Opus 4.5 behavioral differences, including handling beta headers and tool integration considerations.
  • Summarize changes and guide users through post-migration checks, ensuring Haiku 4.5 is not migrated.
  • Use Case: A codebase using Sonnet 4.x or Opus 4.1 can be migrated to Opus 4.5 with minimal disruption, preserving existing prompts and API interactions.

Quick Start

Identify Claude Sonnet 4.x or Opus 4.1 references in your repository and migrate them to Opus 4.5 by updating model strings and adjusting prompts.

Frequently Asked Questions about claude-opus-4-5-migration

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I migrate Claude model strings to Opus 4.5 in my codebase?▼

To migrate Claude model strings to Opus 4.5, this skill updates references from Sonnet 4.0, Sonnet 4.5, or Opus 4.1 across your codebase, including API calls for Anthropic, AWS Bedrock, Google Vertex AI, and Azure AI Foundry.

What prompt adjustments are needed when switching to Opus 4.5?▼

Switching to Opus 4.5 requires prompt adjustments for known behavioral differences, including handling beta headers and tool integration considerations to preserve existing API interactions with minimal disruption.

Can I migrate Haiku 4.5 model strings using this migration process?▼

No, this migration process does not support migrating Haiku 4.5. It specifically targets codebases and prompts using Claude Sonnet 4.0, Sonnet 4.5, or Opus 4.1 for migration to Opus 4.5.

Does Opus 4.5 migration work across AWS Bedrock and Google Vertex AI?▼

Yes, Opus 4.5 migration works across multiple platforms including AWS Bedrock, Google Vertex AI, Azure AI Foundry, and the Anthropic API, updating model strings and API calls consistently.

What post-migration checks should I perform after updating to Opus 4.5?▼

After updating to Opus 4.5, you should perform post-migration checks guided by the skill's change summary, which documents all applied modifications and highlights behavioral differences to verify in your codebase.

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