diff --git a/common/workflow-operator/src/main/scala/org/apache/texera/amber/operator/visualization/ScatterMatrixChart/ScatterMatrixChartOpDesc.scala b/common/workflow-operator/src/main/scala/org/apache/texera/amber/operator/visualization/ScatterMatrixChart/ScatterMatrixChartOpDesc.scala
index e6397d18772..f30b5cee905 100644
--- a/common/workflow-operator/src/main/scala/org/apache/texera/amber/operator/visualization/ScatterMatrixChart/ScatterMatrixChartOpDesc.scala
+++ b/common/workflow-operator/src/main/scala/org/apache/texera/amber/operator/visualization/ScatterMatrixChart/ScatterMatrixChartOpDesc.scala
@@ -34,10 +34,13 @@ import org.apache.texera.amber.operator.metadata.{OperatorGroupConstants, Operat
 import org.apache.texera.amber.pybuilder.PythonTemplateBuilder
 
 import javax.validation.constraints.{NotEmpty, NotNull}
+// Type constraint: every axis of the matrix is plotted numerically. The key is the
+// PROPERTY name -- the `@JsonProperty` value, which is what the property editor looks
+// up -- and this operator's is "Selected Attributes"; keyed "value" it matched nothing.
 @JsonSchemaInject(json = """
 {
   "attributeTypeRules": {
-    "value": {
+    "Selected Attributes": {
       "enum": ["integer", "long", "double"]
     }
   }
diff --git a/common/workflow-operator/src/main/scala/org/apache/texera/amber/operator/visualization/funnelPlot/FunnelPlotOpDesc.scala b/common/workflow-operator/src/main/scala/org/apache/texera/amber/operator/visualization/funnelPlot/FunnelPlotOpDesc.scala
index cd9f38619d6..eb83ed50000 100644
--- a/common/workflow-operator/src/main/scala/org/apache/texera/amber/operator/visualization/funnelPlot/FunnelPlotOpDesc.scala
+++ b/common/workflow-operator/src/main/scala/org/apache/texera/amber/operator/visualization/funnelPlot/FunnelPlotOpDesc.scala
@@ -20,7 +20,7 @@
 package org.apache.texera.amber.operator.visualization.funnelPlot
 
 import com.fasterxml.jackson.annotation.{JsonProperty, JsonPropertyDescription}
-import com.kjetland.jackson.jsonSchema.annotations.{JsonSchemaInject, JsonSchemaTitle}
+import com.kjetland.jackson.jsonSchema.annotations.JsonSchemaTitle
 import org.apache.texera.amber.core.tuple.{AttributeType, Schema}
 import org.apache.texera.amber.pybuilder.PythonTemplateBuilder.PythonTemplateBuilderStringContext
 import org.apache.texera.amber.pybuilder.PyStringTypes.EncodableString
@@ -31,13 +31,6 @@ import org.apache.texera.amber.operator.metadata.{OperatorGroupConstants, Operat
 import org.apache.texera.amber.pybuilder.PythonTemplateBuilder
 
 import javax.validation.constraints.NotNull
-@JsonSchemaInject(json = """
-{
-  "attributeTypeRules": {
-    "title": "string"
-  }
-}
-""")
 class FunnelPlotOpDesc extends PythonOperatorDescriptor {
 
   @JsonProperty(required = true)
diff --git a/common/workflow-operator/src/main/scala/org/apache/texera/amber/operator/visualization/lineChart/LineConfig.scala b/common/workflow-operator/src/main/scala/org/apache/texera/amber/operator/visualization/lineChart/LineConfig.scala
index 1a6378be737..28edbe4286e 100644
--- a/common/workflow-operator/src/main/scala/org/apache/texera/amber/operator/visualization/lineChart/LineConfig.scala
+++ b/common/workflow-operator/src/main/scala/org/apache/texera/amber/operator/visualization/lineChart/LineConfig.scala
@@ -26,14 +26,16 @@ import org.apache.texera.amber.operator.metadata.annotations.AutofillAttributeNa
 
 import javax.validation.constraints.NotNull
 
-//type constraint: value can only be numeric
+// Type constraint: both axes can only be numeric. The keys are the PROPERTY names --
+// the `@JsonProperty` values, which is what the property editor looks up -- not the
+// Scala field names; keyed by the latter the rule matched nothing.
 @JsonSchemaInject(json = """
 {
   "attributeTypeRules": {
-    "yValue": {
+    "y": {
       "enum": ["integer", "long", "double"]
     },
-    "xValue": {
+    "x": {
       "enum": ["integer", "long", "double"]
     }
   }
diff --git a/common/workflow-operator/src/main/scala/org/apache/texera/amber/operator/visualization/scatter3DChart/Scatter3dChartOpDesc.scala b/common/workflow-operator/src/main/scala/org/apache/texera/amber/operator/visualization/scatter3DChart/Scatter3dChartOpDesc.scala
index e9976f56e36..c86d9e3cc61 100644
--- a/common/workflow-operator/src/main/scala/org/apache/texera/amber/operator/visualization/scatter3DChart/Scatter3dChartOpDesc.scala
+++ b/common/workflow-operator/src/main/scala/org/apache/texera/amber/operator/visualization/scatter3DChart/Scatter3dChartOpDesc.scala
@@ -20,7 +20,7 @@
 package org.apache.texera.amber.operator.visualization.scatter3DChart
 
 import com.fasterxml.jackson.annotation.{JsonProperty, JsonPropertyDescription}
-import com.kjetland.jackson.jsonSchema.annotations.{JsonSchemaInject, JsonSchemaTitle}
+import com.kjetland.jackson.jsonSchema.annotations.JsonSchemaTitle
 import org.apache.texera.amber.core.tuple.{AttributeType, Schema}
 import org.apache.texera.amber.pybuilder.PythonTemplateBuilder.PythonTemplateBuilderStringContext
 import org.apache.texera.amber.pybuilder.PyStringTypes.EncodableString
@@ -31,13 +31,6 @@ import org.apache.texera.amber.operator.metadata.{OperatorGroupConstants, Operat
 import org.apache.texera.amber.pybuilder.PythonTemplateBuilder
 
 import javax.validation.constraints.NotNull
-@JsonSchemaInject(json = """
-{
-  "attributeTypeRules": {
-    "title": "string"
-  }
-}
-""")
 class Scatter3dChartOpDesc extends PythonOperatorDescriptor {
   @JsonProperty(value = "x", required = true)
   @JsonSchemaTitle("X Column")