To begin, run the command /jsst itemEditor hand to change the item in your hand, or .. itemEditor item <item> to use a template.

This feature will only show editors possibly usable with the given item.

Labels

Enchantments, Potion Effects and Attribute Modifiers have been given custom labels to help see them at a glance; however I can not provide defaults to every modded enchantment out there. If you want to add your own (either in your mod or a datapack), you can create a corresponding JSON file under data/jsst/item_editor_labels/<category>.json.

In this JSON file, there is a single JSON object with another JSON object under the key values. In this values object, there should be a list of ID: LabelDefinition pairs; you can find the ID by enabling enabledDevTools and browsing said menu.

LabelDefinition is defined as either a minecraft item ID such as minecraft:diamond_pickaxe, or a full ItemStack JSON which you can get from an existing stack by the enabledDevTools-only Stack JSON Printer.

You can replace the entire vanilla set by adding replace: true alongside the values tag at the top level.

For a better explained example, see JSST's base files.

Config

Valid items to check are contained in the jsst:items/crafting_tables tag, which can be extended using data packs or the Command Defined Datapack feature below.

Config

Uses the new Display Entities from 23w06a.

To give a name to a container, rename it in an anvil. You can use the format [item:<ITEM_STACK>] to display an item instead, using the same syntax as the /give command. Examples:

• [item:minecraft:golden_apple]
• [item:potion{Potion:"night_vision"}]

If you give a container the name [max-count], the item displayed will update to the highest-count item in the container every time it is opened.

Admin

To clean up if you ever remove JSST, you can run the following command to remove lingering display entities:

/kill @e[tag=jsst_world_container_name]

Config

Useful for shops or showcases. Plays a chime sound if a display item is successfully made.

Warning: This does not prevent the item from being destroyed in other ways, such as cactus, lava, /kill, cleanup plugins, or being moved with hoppers or water.

Admin

To 'take ownership' of nearby items, run the following command:

/execute as @e[type=item,tag=jsst_display_item,distance=..5] run data modify entity @s Owner set from entity @p UUID

Config

Currently, only supports tags. Designed to help configure mods game features using tags such as minecraft:enderman_holdable, or jsst:crafting_tables, or just creating tags for your server easier.

/jsst cdd save - Manually saves a copy of the current datapack in-memory. Should not be required in most cases as other commands that modify the pack call this directly.

Tags

See also: Tag JSON Format

Base command: /jsst cdd tag <registry>

<registry> defines which registry the tags should be looked up through. For example, you'll want minecraft:item to modify item tags or minecraft:block for block tags.

• .. listTags [filter] - Lists all tags that are registered for this registry.
• .. list <tag> - Lists all elements in a given tag. This is after tags have been 'flattened' i.e. tags referenced by other tags are not shown.
• .. add <tag> value <element> [isOptional] - Adds an element to a <tag> in the datapack.
• .. add <tag> tag <newTag> [isOptional] - Adds a reference to <newTag> in <tag> in the datapack.
• .. remove <tag> <element> - Removes an element from <tag> in the datapack. This does not let you remove items from tags defined elsewhere; use setReplace below to overwrite them.
• .. setReplace <tag> <shouldReplace> - Marks <tag> to overwrite other tags with the same name.

Example (Adding nether stars to the crafting table list for Portable Crafting above)

1. /jsst cdd tag minecraft:item add jsst:crafting_tables value minecraft:nether_star
2. /datapack enable "file/jsstCDD" on first generation
3. /reload

To start, simply use the command /jsst bannerWriter start <text>. This will add a tag to the banners you are holding, which lets the mod know what to replace.

Uses the letters and numbers from https://www.gamergeeks.net/apps/minecraft/banners/.

Supported letters:

abcdefghijklmnopqrstuvwxyz0123456789 .,+-*/'"=!:

Config

For reference, various ranges for beacons are:

Config