https://github.com/discord/discord-api-docs/pull/2630

src/types/interactions/application_command_interaction_data.ts

@@ -1,11 +1,14 @@
 import { SnakeCasedPropertiesDeep } from "../util.ts";
 import { ApplicationCommandInteractionDataOption } from "./application_command_interaction_data_option.ts";
+import { ApplicationCommandInteractionDataResolved } from "./application_command_interaction_data_resolved.ts";
 
 export interface ApplicationCommandInteractionData {
   /** The Id of the invoked command */
   id: string;
   /** The name of the invoked command */
   name: string;
+  /** Converted users + roles + channels */
+  resolved?: ApplicationCommandInteractionDataResolved;
   /** The params + values from the user */
   options?: ApplicationCommandInteractionDataOption[];
 }

src/types/interactions/application_command_interaction_data_resolved.ts

@@ -0,0 +1,18 @@
+import { Channel } from "../channels/channel.ts";
+import { GuildMember } from "../guilds/guild_member.ts";
+import { Role } from "../permissions/role.ts";
+import { User } from "../users/user.ts";
+
+export interface ApplicationCommandInteractionDataResolved {
+  /** The Ids and User objects */
+  users?: Record<string, User>;
+  /** The Ids and partial Member objects */
+  members?: Record<string, Omit<GuildMember, "user" | "deaf" | "mute">>;
+  /** The Ids and Role objects */
+  roes?: Record<string, Role>;
+  /** The Ids and partial Channel objects */
+  channels?: Record<
+    string,
+    Pick<Channel, "id" | "name" | "type" | "permissionOverwrites">
+  >;
+}