> ## Documentation Index
> Fetch the complete documentation index at: https://mbcz.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Clusters

> Cluster radius, shared storage and XP, upgrades, and capacity scaling.

Clusters group nearby same-type physical spawners into one economy unit: shared storage, XP, and upgrades, with capacity scaled by total stack.

## Defaults

```yaml title="config.yml" theme={null}
modes:
  cluster:
    enabled: true
    radius-blocks: 16
    same-type-only: true
    rebuild-debounce-seconds: 3
```

* **radius-blocks** — how far members can be from each other
* **same-type-only** — only matching mob keys form a cluster
* **rebuild-debounce-seconds** — delay before membership rebuild after place/break

## Player commands

```text theme={null}
/3ts cluster
/clusters
```

Permissions:

* `3tspawner.cluster.use` — open menus
* `3tspawner.cluster.create` — participate in formation
* `3tspawner.cluster.upgrade` — buy upgrades for the cluster

## Shared pools

Members contribute production into one storage and XP pool. Upgrades apply to the cluster as a whole. Effective storage capacity multiplies with total stack count (same rules as virtual stacks).

## Disable for a preset

Skyblock/prison style often turns clusters off:

```yaml title="presets/skyblock-prison.yml" theme={null}
modes:
  cluster:
    enabled: false
```

Apply with `/3ts admin preset apply skyblock-prison`.