Did Claude Code Just Get Plan Mode 2.0?

Highlights

• Ultra Plan completes initial project planning in 30 seconds, while standard local Plan Mode takes over 5 minutes and may require restarts due to hanging.

• The Ultra Plan feature requires an existing GitHub repository with at least one commit, such as a README file, to initiate the cloud-based session.

• Local Plan Mode successfully invokes specific skills like 'front-end design' and Google Fonts integration, whereas Ultra Plan ignores these explicit prompt instructions.

• Ultra Plan provides a browser-based interface where users can highlight specific plan segments to add comments or emojis before approving and syncing back to the terminal.

• Code quality analysis reveals no significant difference between the two modes, though Ultra Plan generates several hundred additional lines of code and uses different frameworks.

• Ultra Plan includes a visual Mermaid graph of the project architecture and a detailed list of dependencies within its browser interface.

Timeline

1. 00:00 - 02:10

   Core Mechanics of Ultra Plan

   The feature is accessed via the '/ultra-plan' command in the latest version of Claude Code. While documentation lacks specific details on the underlying hardware, the transition from terminal to browser is intended to simplify the architectural review process. Users must have a base repository ready, as the system relies on this connection to manage the project state.

   • Ultra Plan transitions a local terminal session into a specialized cloud-based environment for enhanced planning resources.
   • A GitHub repository with at least one existing commit is a mandatory technical requirement for the feature to function.
   • The interface allows for direct plan revision and feedback within a web browser before code execution begins.
2. 02:11 - 04:11

   Head-to-Head Performance and Speed Comparison

   A test case involving a premium Kanban board web app built from scratch highlights a massive disparity in latency. While the local mode struggled and required a manual restart, the cloud-based Ultra Plan remained stable and provided a visual overview of the build steps immediately. Once the user approves the browser-generated plan, the data teleports back to the local terminal for the build phase.

   • Ultra Plan generates a full project architecture, Mermaid diagrams, and dependency lists in approximately 30 seconds.
   • Standard local Plan Mode requires over five minutes to produce a comparable plan and is prone to session hangs during complex prompts.
   • The browser interface in Ultra Plan enables granular feedback through highlighting and commenting on specific architectural tiers.
3. 04:12 - 05:42

   Skill Execution and Visual Output Discrepancies

   The visual comparison of the Kanban boards shows that local mode produces a more polished product by successfully utilizing the design skill requested in the prompt. Ultra Plan's output lacks the subtle UI details and specific color implementations seen in the local version. This suggests a current trade-off between the speed of the cloud and the instruction-following precision of the local environment.

   • Local Plan Mode adheres to 'front-end design' skills, resulting in superior typography and UI flourishes like shading and color-coded priority tags.
   • Ultra Plan fails to evoke requested skills, leading to a more generic visual interface without specialized components like Google Fonts.
   • Functionality remains consistent across both modes, with features like drag-and-drop and light/dark mode working regardless of the planning method used.
4. 05:43 - 08:52

   Code Quality and Final Verdict

   Analysis of the underlying logic shows that both modes produce functional, high-quality code, though they may choose different framework implementations. The primary value of Ultra Plan lies in its potential for 'GSD' (Get Stuff Done) or 'superpower' level projects where the speed of architectural planning outweighs the occasional failure to trigger specific minor skills. Users should treat it as a supplemental tool for complex builds rather than a complete replacement for local planning.

   • Internal code audits show that Ultra Plan produces a larger codebase by several hundred lines compared to local mode.
   • Ultra Plan is better suited for high-complexity projects that span multiple days rather than simple, single-page applications.
   • The current iteration of Ultra Plan appears to be a rapid release following recent leaks, with documentation that remains sparse.