[Bug] Background agent workers crash with "exit 1 before init" on spawn

[a4xrbj1]

Bug Description
Every background-agent worker crashes exit 1 before init immediately on spawn —
claude --bg, the Agents view, resuming bg chats, and even blank pre-warmed spares
all fail. Interactive claude / claude -p work fine. 100% reproducible with
claude --bg "anything".

Crash from ~/.claude/jobs//state.json:
exit 1 before init — …at uSK (cli.js:9092:233) at async SKO (cli.js:19558:68) at
async h4O (cli.js:19595:313) Bun v1.3.14 (macOS arm64)

Env: Claude Code 2.1.143 (also seen on 2.1.142), macOS arm64. Ruled out: not auth
(separate auth_required issue fixed; fresh daemon authenticates, workers still
crash), not a version regression (started on 2.1.142), not system Bun (updating it
changed nothing). Also: the state.json crash detail is truncated (leading …) so
the real error message is never visible.

Environment Info

• Platform: darwin
• Terminal: iTerm.app
• Version: 2.1.143
• Feedback ID: 765aa9e1-f193-4ba0-b828-64b8ad177503

Errors

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[github-actions]

Found 1 possible duplicate issue:

1. [BUG] 2.1.143 background agents crash exit 1 before init on macOS arm64 #59638

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[github-actions]

This issue has been automatically closed as a duplicate of #59638.

If this is incorrect, please re-open this issue or create a new one.

🤖 Generated with Claude Code

[github-actions]

This issue has been automatically locked since it was closed and has not had any activity for 7 days. If you're experiencing a similar issue, please file a new issue and reference this one if it's relevant.