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Migrating prompts and code to Claude Opus 4.5 v1.0.0

Use this resource to migrate code or prompts from Claude Sonnet 4 or Opus 4.1 to Opus 4.5

New

  • 444 downloads
  • 152 likes
  • 134 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install claude-opus-migration-guide

With no option, the skill goes to ~/.agents/skills/; add --agent claude-code (or codex, cursor…) to target an agent.

First time: connect the CLI with

npx --yes palatekit@latest login

The agent searches your code for model strings and API calls, updates them to Opus 4.5, removes unsupported beta headers and sets the effort parameter. It also adjusts prompts for known Opus 4.5 behaviour differences. It does not migrate Haiku 4.5. You get a summary of the changes.

Mostly picked by

Updated November 2, 2026

Card for the “Migrating prompts and code to Claude Opus 4.5” skill

Details

Works in
Install guides
Generates with
Your agent's model
Licence
MIT

Similar resources

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What you get

  • SKILL.md: migration procedure and model strings to replace
  • references/effort.md: setting the effort parameter
  • references/prompt-snippets.md: prompt adjustments

Good fit for

  • Your application still calls Sonnet 4 or Opus 4.1
  • You want to migrate your prompts without regressions

Not for

    Tags

    • claude
    • migration
    • opus

    About

    You say

    “Migrate this repository from Sonnet 4.5 to Opus 4.5 and summarize the changes.”

    Card for the “Migrating prompts and code to Claude Opus 4.5” skill

    Skill published by davila7 under the MIT license, delivered in its original version.

    Show more

    How to use it

    1. Install the skill in your agent's skills folder
    2. Ask your agent to migrate code or prompts from Claude Sonnet 4 or Opus 4.1 to Opus 4.5
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE1.1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • references/effort.md1.8 KB
    • references/prompt-snippets.md6.1 KB
    • SKILL.md4.7 KB

    Origin and licence

    Listed unmodified

    Author
    davila7
    Source
    github.com/davila7/claude-code-templates/tree/f57964ebda91cdfb31755661ecea9395f30020f1/cli-tool/components/skills/development/claude-opus-4-5-migration
    Licence
    MIT

    Notice

    « claude-opus-4-5-migration » (davila7, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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