diff --git a/pkg/parser/schema_test.go b/pkg/parser/schema_test.go
index a947eae3194..e169b57396e 100644
--- a/pkg/parser/schema_test.go
+++ b/pkg/parser/schema_test.go
@@ -1025,6 +1025,25 @@ func TestGetSafeOutputTypeKeys(t *testing.T) {
 	}
 }
 
+func TestMainWorkflowSchema_CreateDiscussionRequiredCategoryAllowed(t *testing.T) {
+	t.Parallel()
+
+	frontmatter := map[string]any{
+		"on": "daily",
+		"safe-outputs": map[string]any{
+			"create-discussion": map[string]any{
+				"category":                "Ideas",
+				"close-older-discussions": true,
+				"required-category":       "Ideas",
+			},
+		},
+	}
+
+	if err := validateWithSchema(frontmatter, mainWorkflowSchema, "main workflow file"); err != nil {
+		t.Fatalf("expected create-discussion.required-category to pass schema validation, got: %v", err)
+	}
+}
+
 func TestMainWorkflowSchemaPushToPullRequestBranchHasMaxPatchSize(t *testing.T) {
 	schemaPath := "schemas/main_workflow_schema.json"
 	schemaContent, err := os.ReadFile(schemaPath)
diff --git a/pkg/parser/schemas/main_workflow_schema.json b/pkg/parser/schemas/main_workflow_schema.json
index b5040a2d38e..7a0917681ef 100644
--- a/pkg/parser/schemas/main_workflow_schema.json
+++ b/pkg/parser/schemas/main_workflow_schema.json
@@ -5689,6 +5689,10 @@
                   "minLength": 1,
                   "pattern": "\\S"
                 },
+                "required-category": {
+                  "type": "string",
+                  "description": "Required category for matching when close-older-discussions is enabled. Only discussions in this category will be considered when searching for older discussions to close."
+                },
                 "fallback-to-issue": {
                   "type": "boolean",
                   "description": "When true (default), fallback to creating an issue if discussion creation fails due to permissions. The fallback issue will include a note indicating it was intended to be a discussion. If close-older-discussions is enabled, the close-older-issues logic will be applied to the fallback issue.",
@@ -5762,7 +5766,8 @@
                 {
                   "title-prefix": "[weekly-report] ",
                   "category": "reports",
-                  "close-older-discussions": true
+                  "close-older-discussions": true,
+                  "required-category": "reports"
                 },
                 {
                   "labels": ["weekly-report", "automation"],