[BUG] Scheduled routine stuck on "Setting up a cloud container" indefinitely

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?

Scheduled remote agent routines frequently hang at the "Setting up a cloud container" stage and never proceed to execution. The issue is reproducible across multiple manual trigger attempts on the same routine.

What Should Happen?

Expected behavior: Container provisions within a reasonable time (< 2 minutes) and the agent begins executing.

Actual behavior: Container setup hangs indefinitely. No error is shown. Manual re-triggers also hang.

Error Messages/Logs

Steps to Reproduce

Steps to reproduce:

1. Create a scheduled routine via the Remote Trigger API (action: "run" or via cron schedule)
2. Navigate to claude.ai/code/routines/{routine_id} to watch execution
3. Observe the session stuck on "Setting up a cloud container" indefinitely — never advances to running the agent prompt

Claude Model

Sonnet (default)

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.139

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

Environment:

• Environment: Default (env_017AZVJeWMpe5bQZpLCPkehL, kind: anthropic_cloud)
• Routine ID: trig_01CibKyrUBp6rz4Qco6gP2Ss
• Observed: May 12–13, 2026
• Attempted 3+ manual triggers across two days, all hung at container setup

Workaround: None available from the user side — had to run the task manually in a local Claude Code session instead.