A trailing --target, an empty --target=, or --target followed by another
flag used to degrade into implicit root selection, letting a mutating
helper (poll, accept, complete) act on the most recent live app instead
of the one the caller tried to name. consumeTargetArg now throws on those
shapes and enterLiveRoot exits with a clear error before any session
state can be touched. Unit tests cover the malformed shapes and a
subprocess test proves the helper body never runs.
AI-assisted (Claude Code).
Co-Authored-By: Claude Code <noreply@anthropic.com>
Paul BakausandClaude Code
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