[BUG] /ultrareview crashes mid-run after billing — 4 of 5 recent attempts failed

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?

/ultrareview has crashed on 4 of my last 5 invocations, including the 2 most recent. Each crashed run was billed but did not return a completed review.
The command appears to be broken right now.

Environment

• Tool: Claude Code CLI
• Command: /ultrareview (no-arg form, reviewing local branch)
• Platform: macOS (Darwin 25.3.0), zsh
• Model: Claude Opus 4.7
• Date observed: 2026-05-17 (most recent failures), plus several attempts in the prior days

Reproduction

1. From a git repo with a feature branch checked out, run /ultrareview with no arguments
2. Wait for the remote review to spin up
3. Run crashes before returning a completed review

In my case the crash happens after the "Remote review completed" status appears, so the failure looks like it's late in the pipeline (post-review,
possibly during result delivery / aggregation) rather than at dispatch.

Expected behavior

/ultrareview returns a completed multi-agent review of the current branch, OR fails before billing if the service is unavailable.

Actual behavior

Run is billed, then crashes without delivering a usable review. Repeated retries hit the same failure.

Impact

• 4 of 5 recent runs failed
• Both most recent paid attempts crashed
• Filing a separate refund request via Anthropic support for the failed charges

What Should Happen?

Expected: /ultrareview returns a completed review of the branch.

Actual: Run is billed, then crashes without returning a review. 4 of 5 recent attempts failed.

Error Messages/Logs

Steps to Reproduce

1. Check out a feature branch in a git repo
2. Run /ultrareview (no args)
3. Wait for remote review to run
4. Crash — no review returned, run is billed

Claude Model

Opus

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

4.7

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_