Claude Opus 4.5 Migration
SkillOne-pass migration of model strings and prompts from Sonnet 4.x or Opus 4.1 to Claude Opus 4.5.
by anthropics Listed Feb 22, 2025
Clone or download it from github.com, then drop the folder into ~/.claude/skills/ (Claude Code) or your agent's skills directory.
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About Claude Opus 4.5 Migration
Shipped as a plugin in the Claude Code repo. The skill searches your codebase for model identifiers and API calls, swaps them to Opus 4.5, and adjusts prompts for the behaviour differences Anthropic has documented for that model.
Worth a look when you're bumping models across a project and don't want to hunt for every hard-coded string yourself.
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