claude-opus-4-5-migration

Claude Code skillNot tested by us

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.

Install

Copy the skill folder into your personal skills directory (or .claude/skills/ in a project):

git clone --depth 1 https://github.com/anthropics/claude-code.git /tmp/claude-code
cp -r /tmp/claude-code/plugins/claude-opus-4-5-migration/skills/claude-opus-4-5-migration ~/.claude/skills/

Commands are derived from repository/registry metadata and have not been tested.

Details