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claude-opus-4-5-migration

Migrates Claude model references and adjusts prompts across major AI platforms.

Updated Aug 27, 2026
Search Tags:#prompt engineering#api#migration#claude#opus 4.5#model update
One-click install
npx skills add https://github.com/SS2608-dev/Resilience --skill claude-opus-4-5-migration-ss2608-dev
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: claude-opus-4-5-migration
Source: https://github.com/SS2608-dev/Resilience/tree/main/.agents/skills/claude-opus-4-5-migration
Command: npx skills add https://github.com/SS2608-dev/Resilience --skill claude-opus-4-5-migration-ss2608-dev

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill automates the process of updating codebases, prompts, and API calls to leverage the latest Claude Opus 4.5 model, ensuring compatibility and optimal performance.

Core Features & Use Cases

  • Model String Updates: Replaces outdated model identifiers across various platforms (Anthropic API, AWS Bedrock, Google Vertex AI, Azure AI Foundry).
  • Prompt Adjustment: Modifies prompts to address known behavioral differences in Opus 4.5, such as tool overtriggering and over-engineering.
  • Use Case: A developer needs to migrate their existing AI-powered application from Claude Opus 4.1 to Opus 4.5. This Skill will automatically find and update all model strings and apply necessary prompt adjustments to ensure the application functions correctly with the new model.

Quick Start

Migrate the current codebase from claude-opus-4-1-20250422 to claude-opus-4-5-20251101.

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 API calls to Opus 4.5?▼

Migrating Claude API calls to Opus 4.5 involves replacing outdated model identifiers like claude-opus-4-1-20250422 with claude-opus-4-5-20251101 and adjusting prompts to mitigate behavioral differences such as tool overtriggering and over-engineering.

Does the Claude Opus 4.5 migration support AWS Bedrock and Google Vertex AI?▼

Yes, the Claude Opus 4.5 migration supports AWS Bedrock and Google Vertex AI, along with Anthropic API and Azure AI Foundry, by handling model string replacements across all these platforms.

What prompt adjustments are needed when upgrading to Claude Opus 4.5?▼

Upgrading to Claude Opus 4.5 requires optional prompt modifications to address known behavioral differences, specifically mitigating tool overtriggering and over-engineering issues reported by users.

Can I use this migration process for Claude Haiku models?▼

No, you cannot use this migration process for Claude Haiku models because it specifically focuses on migrating from Sonnet 4.0, Sonnet 4.5, and Opus 4.1 to Opus 4.5.

Why does Claude Opus 4.5 overtrigger tools after a model update?▼

Claude Opus 4.5 overtriggers tools due to known behavioral differences in the updated model, which requires adjusting your existing prompts during migration to mitigate this over-engineering tendency.

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