diff --git a/src/utils/actions/action-parameter.ts b/src/utils/actions/action-parameter.ts
new file mode 100644
index 0000000..ee32a1d
--- /dev/null
+++ b/src/utils/actions/action-parameter.ts
@@ -0,0 +1,43 @@
+/**
+ * Represents an input or output parameter of a GitHub Action.
+ */
+export interface ActionParameter {
+    /**
+     * A string description of the parameter.
+     */
+    description: string;
+
+    /**
+     * A name of the parameter this one's value should be redirected to.
+     *
+     * @custom
+     */
+    redirect?: string;
+
+    /**
+     * The data type of the parameter.
+     *
+     * @custom
+     */
+    type?: string;
+
+    /**
+     * Whether this parameter should be included in the groups by default.
+     *
+     * Defaults to `false`.
+     *
+     * @custom
+     */
+    unique?: boolean;
+}
+
+/**
+ * Normalizes the name of a parameter by replacing spaces with underscores and converting it to uppercase.
+ *
+ * @param name - The name of the parameter to normalize.
+ *
+ * @returns The normalized name of the parameter.
+ */
+export function normalizeActionParameterName(name: string): string {
+    return name.replaceAll(" ", "_").toUpperCase();
+}