[BUG] /schedule fails to connect despite valid claude.ai authentication (team account)

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

Description:
## Summary
The /schedule skill consistently fails with "We're having trouble connecting with your
remote claude.ai account" even though authentication is confirmed working.

## Steps to Reproduce

1. Run /schedule in Claude Code
2. Observe error: "We're having trouble connecting with your remote claude.ai account

to set up a scheduled task."

## Auth Status
Running claude auth status returns:
{
"loggedIn": true,
"authMethod": "claude.ai",
"apiProvider": "firstParty",
"subscriptionType": "team"
}

## Environment

• Claude Code VSCode extension
• OS: Windows 11 Pro
• Auth method: claude.ai
• Subscription: Team

## Expected Behavior
/schedule should connect and allow creation of a recurring scheduled agent.

## Actual Behavior
Fails every attempt with the connection error message. No additional error details provided.

What Should Happen?

/schedule should open a flow to create a recurring remote agent, letting you set a name, cron schedule, and prompt — then save it to run automatically on claude.ai.

Error Messages/Logs

Steps to Reproduce

1. Open Claude Code in VSCode
2. Start a conversation
3. Type /schedule
4. Observe the error: "We're having trouble connecting with your remote claude.ai account to set up a scheduled task."

Claude Model

Sonnet (default)

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.121 (Claude Code)

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Other

Additional Information

_No response_