diff --git a/source/FluxBase-Core-Tests/FBDeferredChoiceTest.class.st b/source/FluxBase-Core-Tests/FBDeferredChoiceTest.class.st
index afe2327..f2e4f1a 100644
--- a/source/FluxBase-Core-Tests/FBDeferredChoiceTest.class.st
+++ b/source/FluxBase-Core-Tests/FBDeferredChoiceTest.class.st
@@ -219,3 +219,12 @@ FBDeferredChoiceTest >> testABranchThatCannotWaitIsRejected [
 	self assert: seen isEmpty.
 	self assert: ((instance events detect: [ :each | each isKindOf: FBNodeActivationErrored ]) message includesSubstring: 'waits')
 ]
+
+{ #category : 'tests' }
+FBDeferredChoiceTest >> testTheChoiceStaysOutOfTheExposedNodeSetForNow [
+	"ApptiveGrid offers every non-abstract node class to its client as a type to pick;
+	the client knows no deferred choice yet, so the class reads abstract the way
+	FBRemoteFlowTask and FBTerminateEvent do - and stays instantiable"
+	self assert: FBDeferredChoice isAbstract.
+	self assert: (FBDeferredChoice named: 'choice') isDeferredChoice
+]
diff --git a/source/FluxBase-Core/FBDeferredChoice.class.st b/source/FluxBase-Core/FBDeferredChoice.class.st
index e9883b6..47aa61d 100644
--- a/source/FluxBase-Core/FBDeferredChoice.class.st
+++ b/source/FluxBase-Core/FBDeferredChoice.class.st
@@ -18,6 +18,12 @@ would run at once cannot take part in a choice, since steps run to rest before a
 from outside arrives, and my behavior refuses such a model. I open a pass like every
 split (FBSplitExecution), which is what remembers whether I was decided and where my
 branches began (#origin).
+
+Abstract in the sense of the exposed node set only, like FBRemoteFlowTask and
+FBTerminateEvent: ApptiveGrid lists every non-abstract node class to its client as a type
+a user can pick, and the client knows nothing of a choice yet. Instantiable all the same;
+the tests build me directly. An ApptiveBase subclass lifts this once the client can show
+and configure one.
 "
 Class {
 	#name : 'FBDeferredChoice',
@@ -27,6 +33,12 @@ Class {
 	#tag : 'Model'
 }
 
+{ #category : 'testing' }
+FBDeferredChoice class >> isAbstract [
+	"see the class comment: out of the exposed node set until the client knows the node"
+	^ true
+]
+
 { #category : 'instance creation' }
 FBDeferredChoice class >> typeName [
 	^ #deferredChoice