diff --git a/GFramework.Game/Config/YamlConfigSchemaValidator.cs b/GFramework.Game/Config/YamlConfigSchemaValidator.cs
index 09153c57..a53fccab 100644
--- a/GFramework.Game/Config/YamlConfigSchemaValidator.cs
+++ b/GFramework.Game/Config/YamlConfigSchemaValidator.cs
@@ -913,7 +913,21 @@ internal static class YamlConfigSchemaValidator
         {
             case YamlConfigSchemaPropertyType.Integer:
             case YamlConfigSchemaPropertyType.Number:
-                var numericValue = double.Parse(normalizedValue, CultureInfo.InvariantCulture);
+                if (!double.TryParse(
+                        normalizedValue,
+                        NumberStyles.Float | NumberStyles.AllowThousands,
+                        CultureInfo.InvariantCulture,
+                        out var numericValue))
+                {
+                    throw ConfigLoadExceptionFactory.Create(
+                        ConfigLoadFailureKind.UnexpectedFailure,
+                        tableName,
+                        $"Property '{displayPath}' in config file '{yamlPath}' could not be normalized into a comparable numeric value.",
+                        yamlPath: yamlPath,
+                        schemaPath: schemaNode.SchemaPathHint,
+                        displayPath: GetDiagnosticPath(displayPath),
+                        rawValue: rawValue);
+                }
 
                 if (constraints.Minimum.HasValue && numericValue < constraints.Minimum.Value)
                 {
@@ -975,6 +989,16 @@ internal static class YamlConfigSchemaValidator
                 }
 
                 return;
+
+            default:
+                throw ConfigLoadExceptionFactory.Create(
+                    ConfigLoadFailureKind.UnexpectedFailure,
+                    tableName,
+                    $"Property '{displayPath}' in config file '{yamlPath}' resolved unsupported constraint host type '{schemaNode.NodeType}'.",
+                    yamlPath: yamlPath,
+                    schemaPath: schemaNode.SchemaPathHint,
+                    displayPath: GetDiagnosticPath(displayPath),
+                    rawValue: schemaNode.NodeType.ToString());
         }
     }
 
@@ -1153,16 +1177,29 @@ internal static class YamlConfigSchemaValidator
         return expectedType switch
         {
             YamlConfigSchemaPropertyType.String => value,
-            YamlConfigSchemaPropertyType.Integer => long.Parse(
-                value,
-                NumberStyles.Integer,
-                CultureInfo.InvariantCulture).ToString(CultureInfo.InvariantCulture),
-            YamlConfigSchemaPropertyType.Number => double.Parse(
-                value,
-                NumberStyles.Float | NumberStyles.AllowThousands,
-                CultureInfo.InvariantCulture).ToString(CultureInfo.InvariantCulture),
-            YamlConfigSchemaPropertyType.Boolean => bool.Parse(value).ToString().ToLowerInvariant(),
-            _ => value
+            YamlConfigSchemaPropertyType.Integer when long.TryParse(
+                    value,
+                    NumberStyles.Integer,
+                    CultureInfo.InvariantCulture,
+                    out var integerValue) =>
+                integerValue.ToString(CultureInfo.InvariantCulture),
+            YamlConfigSchemaPropertyType.Number when double.TryParse(
+                    value,
+                    NumberStyles.Float | NumberStyles.AllowThousands,
+                    CultureInfo.InvariantCulture,
+                    out var numberValue) =>
+                numberValue.ToString(CultureInfo.InvariantCulture),
+            YamlConfigSchemaPropertyType.Boolean when bool.TryParse(value, out var booleanValue) =>
+                booleanValue.ToString().ToLowerInvariant(),
+            YamlConfigSchemaPropertyType.Integer =>
+                throw new InvalidOperationException($"Value '{value}' cannot be normalized as integer."),
+            YamlConfigSchemaPropertyType.Number =>
+                throw new InvalidOperationException($"Value '{value}' cannot be normalized as number."),
+            YamlConfigSchemaPropertyType.Boolean =>
+                throw new InvalidOperationException($"Value '{value}' cannot be normalized as boolean."),
+            _ =>
+                throw new InvalidOperationException(
+                    $"Schema node type '{expectedType}' cannot be normalized as a scalar value.")
         };
     }
 
diff --git a/tools/gframework-config-tool/src/configValidation.js b/tools/gframework-config-tool/src/configValidation.js
index de70e832..31467f78 100644
--- a/tools/gframework-config-tool/src/configValidation.js
+++ b/tools/gframework-config-tool/src/configValidation.js
@@ -505,10 +505,18 @@ function parseSchemaNode(rawNode, displayPath) {
         title: metadata.title,
         description: metadata.description,
         defaultValue: metadata.defaultValue,
-        minimum: metadata.minimum,
-        maximum: metadata.maximum,
-        minLength: metadata.minLength,
-        maxLength: metadata.maxLength,
+        minimum: type === "integer" || type === "number"
+            ? metadata.minimum
+            : undefined,
+        maximum: type === "integer" || type === "number"
+            ? metadata.maximum
+            : undefined,
+        minLength: type === "string"
+            ? metadata.minLength
+            : undefined,
+        maxLength: type === "string"
+            ? metadata.maxLength
+            : undefined,
         enumValues: normalizeSchemaEnumValues(value.enum),
         refTable: metadata.refTable
     };
@@ -587,7 +595,12 @@ function validateNode(schemaNode, yamlNode, displayPath, diagnostics, localizer)
     }
 
     const scalarValue = unquoteScalar(yamlNode.value);
-    if (typeof schemaNode.minimum === "number" && Number(scalarValue) < schemaNode.minimum) {
+    const supportsNumericConstraints = schemaNode.type === "integer" || schemaNode.type === "number";
+    const supportsLengthConstraints = schemaNode.type === "string";
+
+    if (supportsNumericConstraints &&
+        typeof schemaNode.minimum === "number" &&
+        Number(scalarValue) < schemaNode.minimum) {
         diagnostics.push({
             severity: "error",
             message: localizeValidationMessage(ValidationMessageKeys.minimumViolation, localizer, {
@@ -597,7 +610,9 @@ function validateNode(schemaNode, yamlNode, displayPath, diagnostics, localizer)
         });
     }
 
-    if (typeof schemaNode.maximum === "number" && Number(scalarValue) > schemaNode.maximum) {
+    if (supportsNumericConstraints &&
+        typeof schemaNode.maximum === "number" &&
+        Number(scalarValue) > schemaNode.maximum) {
         diagnostics.push({
             severity: "error",
             message: localizeValidationMessage(ValidationMessageKeys.maximumViolation, localizer, {
@@ -607,7 +622,9 @@ function validateNode(schemaNode, yamlNode, displayPath, diagnostics, localizer)
         });
     }
 
-    if (typeof schemaNode.minLength === "number" && scalarValue.length < schemaNode.minLength) {
+    if (supportsLengthConstraints &&
+        typeof schemaNode.minLength === "number" &&
+        scalarValue.length < schemaNode.minLength) {
         diagnostics.push({
             severity: "error",
             message: localizeValidationMessage(ValidationMessageKeys.minLengthViolation, localizer, {
@@ -617,7 +634,9 @@ function validateNode(schemaNode, yamlNode, displayPath, diagnostics, localizer)
         });
     }
 
-    if (typeof schemaNode.maxLength === "number" && scalarValue.length > schemaNode.maxLength) {
+    if (supportsLengthConstraints &&
+        typeof schemaNode.maxLength === "number" &&
+        scalarValue.length > schemaNode.maxLength) {
         diagnostics.push({
             severity: "error",
             message: localizeValidationMessage(ValidationMessageKeys.maxLengthViolation, localizer, {
diff --git a/tools/gframework-config-tool/test/configValidation.test.js b/tools/gframework-config-tool/test/configValidation.test.js
index cfac2fb4..a88becb6 100644
--- a/tools/gframework-config-tool/test/configValidation.test.js
+++ b/tools/gframework-config-tool/test/configValidation.test.js
@@ -266,6 +266,28 @@ test("parseSchemaContent should capture scalar range and length metadata", () =>
     assert.equal(schema.properties.tags.items.maxLength, 6);
 });
 
+test("parseSchemaContent should ignore mismatched constraint metadata on unsupported scalar types", () => {
+    const schema = parseSchemaContent(`
+        {
+          "type": "object",
+          "properties": {
+            "enabled": {
+              "type": "boolean",
+              "minimum": 1,
+              "minLength": 3
+            }
+          }
+        }
+    `);
+    const yaml = parseTopLevelYaml(`
+enabled: true
+`);
+
+    assert.equal(schema.properties.enabled.minimum, undefined);
+    assert.equal(schema.properties.enabled.minLength, undefined);
+    assert.deepEqual(validateParsedConfig(schema, yaml), []);
+});
+
 test("validateParsedConfig should localize diagnostics when Chinese UI is requested", () => {
     const schema = parseSchemaContent(`
         {