[DOCS] Ultraplan and web quickstart docs still require a pre-created cloud environment

Documentation Type

Incorrect/outdated documentation

Documentation Location

https://code.claude.com/docs/en/ultraplan

Section/Topic

Prerequisites and setup flow for ultraplan and other remote-session features

Current Documentation

The ultraplan page currently says:

Ultraplan requires a Claude Code on the web account and a GitHub repository. Because it runs on Anthropic's cloud infrastructure, it is not available when using Amazon Bedrock, Google Cloud Vertex AI, or Microsoft Foundry. The cloud session runs in your account's default cloud environment.

The web quickstart troubleshooting section still says:

### "No cloud environment available" when using --remote You haven't created a cloud environment yet. Run /web-setup in the Claude Code CLI to create one, or visit claude.ai/code and follow the Create your environment step above.

What's Wrong or Missing?

Claude Code v2.1.101 changed /ultraplan and other remote-session features to auto-create a default cloud environment instead of requiring web setup first.

The current docs still describe a pre-created cloud environment as a prerequisite and tell users to run /web-setup when no environment exists. That is now outdated.

This creates confusing setup guidance for users who are trying to start remote work directly from the CLI:

• ultraplan looks like it requires prior web setup
• remote-session troubleshooting still assumes missing environments are a manual setup problem
• the docs do not explain when Claude Code auto-creates the default environment versus when a user still needs to configure one manually

Suggested Improvement

Update the remote-session docs to explain the new default flow:

1. /ultraplan and other supported remote-session entry points can create a default cloud environment automatically when one does not exist
2. manual environment creation is still optional when users want custom network access, setup scripts, or environment variables
3. troubleshooting for --remote should distinguish between missing GitHub/auth prerequisites and environment auto-creation behavior

A single note shared across ultraplan and the web quickstart pages would likely be enough.

Impact

Medium - Makes feature difficult to understand

Additional Context

Affected Pages:
| Page | Context |
|------|---------|
| https://code.claude.com/docs/en/ultraplan | States that ultraplan runs in the account's default cloud environment, without explaining the new auto-create behavior |
| https://code.claude.com/docs/en/web-quickstart | Troubleshooting still says missing environments must be created manually with /web-setup or the web UI |

Total scope: 2 pages affected

Source: Claude Code v2.1.101 release notes

/ultraplan and other remote-session features now auto-create a default cloud environment instead of requiring web setup first