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vwait used frame-lookup which doesn't honor `::` global routing. So `vwait ::done` after `set ::done fired` (where set routes to root frame) never saw the var change in the local frame, looping forever. Added tcl-vwait-lookup helper that mirrors tcl-var-get's `::` routing but returns nil instead of erroring on missing vars. Was the deadlock that hung the full test suite past test 32. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>