claude --continue "<prompt>" --dangerously-skip-permissions crashes with "UKH is not a function"

Resolved 💬 4 comments Opened Apr 27, 2026 by zwarag Closed Apr 27, 2026

Summary

Running claude --continue with a prompt argument and --dangerously-skip-permissions crashes during session resume with UKH is not a function.

Version

  • Claude Code: 2.1.120
  • Install: mise (~/.local/share/mise/installs/claude/2.1.120/claude)
  • OS: Fedora Linux 6.19.12-200.fc43.x86_64
  • Shell: zsh

Reproduction

claude --continue "ok look at the todo.md. where we at? (Branch)" --dangerously-skip-permissions

Error

ERROR  UKH is not a function. (In 'UKH(K)', 'UKH' is undefined)

 /$bunfs/root/src/entrypoints/cli.js:9247:5663

 - <anonymous> (/$bunfs/root/src/entrypoints/cli.js:9247:5663)
 - JR (/$bunfs/root/src/entrypoints/cli.js:492:63749)
 - Bw (/$bunfs/root/src/entrypoints/cli.js:492:76948)
 - Xz (/$bunfs/root/src/entrypoints/cli.js:492:76827)
 - Bw (/$bunfs/root/src/entrypoints/cli.js:492:77745)
 - Xz (/$bunfs/root/src/entrypoints/cli.js:492:76827)
 - Bw (/$bunfs/root/src/entrypoints/cli.js:492:76926)
 - Xz (/$bunfs/root/src/entrypoints/cli.js:492:76827)
 - Bw (/$bunfs/root/src/entrypoints/cli.js:492:77745)
 - Xz (/$bunfs/root/src/entrypoints/cli.js:492:76827)
 - async <anonymous> (/$bunfs/root/src/entrypoints/cli.js:18804:11089)

The crash happens inside the internal session-resume function (\eJ\$\), where what looks like an \onSessionRestored\ callback returned by an internal hook (\RW4\) is undefined at call time.

Notes

  • Separately, \claude --resume \"<prompt>\" --dangerously-skip-permissions\ (no session ID) errors with: \"No deferred tool marker found in the resumed session. Either the session was not deferred, the marker is stale (tool already ran), or it exceeds the tail-scan window. Provide a prompt to continue the conversation.\" That message could be friendlier — it doesn't make it obvious that \--resume\ without a session ID isn't the right flag for \"reopen last session and send a message.\"

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