fix(tmux): disallow AskUserQuestion in headless agents (#850, #876) - #879
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fix(tmux): disallow AskUserQuestion in headless agents (#850, #876)#879bradbrok wants to merge 1 commit into
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CC 2.1.200 removed the auto-continue fallback for AskUserQuestion dialogs; headless tmux agents now hang indefinitely if the model calls it. Pass --disallowedTools AskUserQuestion on every tmux REPL launch to close this. The SDK path is already safe (AskUserQuestion is not in DEFAULT_STREAMING_ALLOWED_TOOLS). Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01GMiF52XXdqSU7V5hJUovqQ
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Problem
CC 2.1.200 (live on fleet since 2026-07-04) removed the
AskUserQuestionauto-continue fallback. Any headless tmux agent that calls it now hangs indefinitely — pane alive, transport CONNECTED, but zero API traffic — until the inflight watchdog force-restarts it 600 s later.The SDK path is already safe:
AskUserQuestionis not inDEFAULT_STREAMING_ALLOWED_TOOLS, so it can't be called there.The tmux path was unguarded:
_build_claude_cmdlaunchedclaude --dangerously-skip-permissionswith no--disallowedTools, leavingAskUserQuestionreachable.Fix
One line in
_build_claude_cmd: pass--disallowedTools AskUserQuestionon every tmux REPL launch.Test
329 tmux session tests pass.
Closes #850, closes #876.
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