Claude Code Ultra Plan Refines Big Refactors on Web

Trigger Ultra Plan for Richer Plan Refinement

In Claude Code's Plan Mode, select "Refine with Ultra Plan on the web" for large tasks like refactoring a Laravel/Livewire project to ReactJS. This sends your local files (no GitHub repo needed) to a cloud session on claude.ai/code, where Claude refines the draft into a detailed plan with execution order, diagrams, tables, lists, and code snippets. Refinement completes in about 1 minute, using just 1% of weekly token limit on top of the initial local plan (which took 10 minutes for this refactor). Alternatively, trigger via /ultraplan slash command directly.

The web interface provides a superior review surface over terminal: zoomable codebase explorer, full context visibility, and professional formatting make logical file changes and steps easier to audit without scrolling cramped output.

Approve and Execute Seamlessly Across Terminal or Cloud

After review, choose "Approve plan and start coding" to execute entirely on the web—ideal for hands-off cloud processing while you work locally elsewhere. Or select "Teleport back to terminal" to write the refined plan as an MD file locally, then "Implement here" to resume in your terminal session.

Execution begins steps in parallel (e.g., removing Livewire components), even if Plan Mode UI lingers. Use dangerously-skip-permissions flag for full access during tests. Post-execution, the web plan converts to plain Markdown, but initial visual format aids quick validation.

Trade-offs: Best for Terminal-Limited Complex Plans

Ultra Plan shines when terminal readability fails for big refactors—web view prevents overwhelm from dense output. Drawback: minor token cost (13% weekly total here) and no visible terminal progress during refinement. Skip for simple tasks; reserve for production-scale changes where plan accuracy prevents errors. Test on local projects without repos, as it handles file context automatically.