Build /summon commands with custom NBT for every vanilla mob — baby variants, equipment, colors, and mob-specific options.

Run /summon from an operator’s chat, a command block, or the server console. Not every internal NBT field is covered — this generates the commonly-used ones for each mob.

How to Use the Cave Spider Summon Generator

  1. Type cave spider into the search box (matching on either the ID or the display label works), or select it from the Hostile group in the mob dropdown.
  2. Cave Spider has no dedicated mob-specific fields in this tool – its poison attack and small size are hardcoded behavior on the entity itself, not something you toggle here.
  3. Use the shared fields above the panel – Health override, Custom Name, Tags, No AI, Silent, Glowing, Invulnerable, Persistence Required – to shape everything else about the summon.
  4. Copy the generated /summon command into a command block, server console, or operator chat.

Command Syntax & NBT Reference

Base command: /summon minecraft:cave_spider ~ ~ ~ {NBT}. Every field on this panel comes from the shared fields block:

  • Health:<n>f plus a matching attributes entry – cave spiders have less base HP than regular spiders by default, so overriding health here is a common way to make one tougher for a custom fight.
  • Glowing:1b – useful for cave spiders specifically since they’re small, dark blue, and easy to lose track of in the low-light mineshaft corridors they naturally spawn in.
  • NoAI:1b – stops the cave spider from moving, climbing, or attacking; it still exists and can still be hit, but won’t path toward anything.

The poison-on-hit attack itself isn’t something this generator adds via NBT – it’s baseline behavior for the minecraft:cave_spider entity type regardless of what fields you set here, so even a plain /summon minecraft:cave_spider ~ ~ ~ with no NBT at all still poisons the player on a successful melee hit.

Frequently Asked Questions

How much Poison damage does a cave spider actually deal?

On Normal difficulty, a cave spider’s poison lasts about 7 seconds; on Hard difficulty it lasts roughly twice as long and deals more total damage over that time. This generator doesn’t have a field for poison duration since it’s fixed to difficulty, not to the entity’s NBT.

Can I make the poison attack stronger or give it a longer duration?

Not through this generator’s fields – poison duration and strength on cave spider attacks scale with world difficulty, not with any NBT tag exposed here. If you need a custom poison effect, apply an Effect command separately to whatever gets hit.

Why is the Health field useful specifically for cave spiders?

Cave spiders spawn with less health than regular spiders by default, making them fairly fragile despite their dangerous poison bite. Raising Health here is a quick way to build a cave spider that survives longer in a custom arena or mob-fight setup without changing its poison behavior at all.

Do cave spiders still fit through 1-block gaps when summoned this way?

Yes – the ability to squeeze through small half-block gaps is tied to the cave spider’s smaller hitbox, which is intrinsic to the entity type and unaffected by anything this generator’s shared fields set.

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