Migrate Claude model strings and prompts from Sonnet 4.0, Sonnet 4.5, or Opus 4.1 to Opus 4.5.
Automate repetitive workflows and reduce manual effort
Example: Generate reports, summarize documents, draft communications
Save 3-5 hours per week on routine tasks
Learn new skills, understand complex topics, get expert guidance
Example: Explain concepts, provide examples, suggest learning resources
Accelerate learning and skill development by 2x
Enhance output quality through reviews, suggestions, and refinements
Example: Review drafts, suggest improvements, catch errors
Improve work quality by 30-40% with less effort
Time estimate: 15-45 minutes depending on use case complexity
Prerequisites
Submit your Claude Code skill and start earning
epx add anthropics/claude-code --skill claude-opus-4-5-migrationCompatible with
Supported agents
Updates model strings across Anthropic API, AWS Bedrock, Google Vertex AI, and Azure AI Foundry platforms
Removes unsupported beta headers (e.g., context-1m-2025-08-07 ) and adds effort parameter set to \"high\"
Provides optional prompt adjustments for known Opus 4.5 behavioral differences: tool overtriggering, over-engineering, code exploration conservatism, frontend design, and thinking s
AI-first code editor with Composer
Before installing skills in Cursor, ensure your development environment meets these requirements:
node --versionclaude-opus-4-5-migrationExecute the skills CLI command in your project's root directory to begin installation:
epx add anthropics/claude-code --skill claude-opus-4-5-migrationFetches claude-opus-4-5-migration from anthropics/claude-code and configures it for Cursor.
The CLI shows a list of agents. Use arrow keys and space to select Cursor:
Confirm successful installation by checking the skill directory location:
.cursor/skills/claude-opus-4-5-migration
Restart Cursor to activate claude-opus-4-5-migration. Access via /claude-opus-4-5-migrationin your agent's command palette.
Learn more:View source on GitHubSkills CLI docsAbout CursorWhat are agent skills?
Steps
Common Pitfalls
✓ Do
✗ Don't
💡 Pro Tips
✓ Use when
Use when skill capabilities match your task, clear ROI on time saved, and you can validate outputs. Best for repetitive tasks, learning, and quality improvement.
✗ Avoid when
Avoid when task requires deep expertise you can't validate, involves sensitive decisions, or when learning process is more valuable than speed of completion.
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Keeps context tight: claude-opus-4-5-migration is the kind of skill you can hand to a new teammate without a long onboarding doc.
Registry listing for claude-opus-4-5-migration matched our evaluation — installs cleanly and behaves as described in the markdown.
Solid pick for teams standardizing on skills: claude-opus-4-5-migration is focused, and the summary matches what you get after install.
claude-opus-4-5-migration is among the better-maintained entries we tried; worth keeping pinned for repeat workflows.
Solid pick for teams standardizing on skills: claude-opus-4-5-migration is focused, and the summary matches what you get after install.
Registry listing for claude-opus-4-5-migration matched our evaluation — installs cleanly and behaves as described in the markdown.
claude-opus-4-5-migration reduced setup friction for our internal harness; good balance of opinion and flexibility.
I recommend claude-opus-4-5-migration for anyone iterating fast on agent tooling; clear intent and a small, reviewable surface area.
Useful defaults in claude-opus-4-5-migration — fewer surprises than typical one-off scripts, and it plays nicely with `npx skills` flows.
Solid pick for teams standardizing on skills: claude-opus-4-5-migration is focused, and the summary matches what you get after install.
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