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claude-opus-4-5-migration

100 / 100 · Low risk

Fine to try.

By davila7/claude-code-templates (GitHub) · coding · 33,256 stars · scanned at commit a6e6f93

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.

Works with any agent that supports SKILL.md skills.

What this skill can do

We found nothing in the files we read that matches our rules. That does not prove the skill is safe: see the limits of static scanning.

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'claude-opus-4-5-migration' ] || [ -L ~/.agents/skills/'claude-opus-4-5-migration' ]; then echo 'A skill folder named claude-opus-4-5-migration already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/davila7/claude-code-templates' "$d" && git -C "$d" checkout --quiet 'a6e6f93e9a4baaa6ff337aee5505bf5c2bae4ce6' -- 'cli-tool/components/skills/development/claude-opus-4-5-migration' && mkdir -p ~/.agents/skills && cp -R "$d"/'cli-tool/components/skills/development/claude-opus-4-5-migration' ~/.agents/skills/'claude-opus-4-5-migration' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'claude-opus-4-5-migration' ~/.claude/skills/'claude-opus-4-5-migration' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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Score history

Also found in

Identical copies of this skill exist at:

• aicodedecode/awesome-muse-skills/skills-imported/claude-opus-4-5-migration