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claude-opus-4-5-migration

Migrate prompts and code from Claude Sonnet 4.0, Sonnet 4.5, or Opus 4.1 to Opus 4.5.

Category

Development

Author

anthropics

Updated

Jan 2026

Tags

4

Install Command

claude skill add anthropics/claude-code

Description

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.

Tags

migrationOpus 4.5ClaudeAPI

Information

Developeranthropics
CategoryDevelopment
CreatedJan 15, 2026
UpdatedJan 15, 2026

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