Commands

Play 0x10, server → client.

play · 0x10 · clientbound (server → client)

Sends the full command tree (a graph of nodes with rootIndex pointing to the root) so the client can parse and tab-complete commands locally. The server sends it after login and whenever the available commands change. The client uses it for syntax highlighting and suggestions in the chat box.

Sent by the server, read by the client. Listen for it with client.on("Commands", (data) => …) on the receiving side.

Fields

Send it

import { helpers } from "mc-protocol";
const { literal, argument, createCommandTree } = helpers;

await client.sendPacket("Commands", createCommandTree([
  literal("ping", { executable: true }),
  literal("tp", {
    children: [argument("target", "entity", { single: true, playersOnly: true, executable: true })],
  }),
  literal("say", {
    children: [argument("message", "string", { type: "greedy", executable: true, suggestions: "ask_server" })],
  }),
  literal("run", { redirect: "root" }),
]));

createCommandTree numbers the nodes, packs the flags and resolves parser IDs. See Commands for parsers, properties and redirects.

Field aliases listed under Notes are accepted as alternative keys when writing.

Source: src/Core/Versions/776/Packets/play/clientbound/Commands.ts