blockbench-animation

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Create and manage animations in Blockbench using MCP tools. Use when animating 3D models, creating keyframes, managing bone rigs, editing animation curves, or working with animation timelines. Covers walk cycles, idle animations, combat animations, and complex multi-bone animations.

8installs

Sourcejasonjgardner/blockbench-mcp-project

Added on2026-02-07

NPX Install

npx skill4agent add jasonjgardner/blockbench-mcp-project blockbench-animation

SKILL.md Content

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Blockbench Animation

Create animations for 3D models using Blockbench MCP tools.

Available Tools

Tool	Purpose
`create_animation`	Create animation with keyframes for bones
`manage_keyframes`	Create/edit/delete keyframes per bone and channel
`animation_graph_editor`	Fine-tune animation curves (smooth, linear, ease)
`bone_rigging`	Create/modify bone structure for animation
`animation_timeline`	Control playback, time, FPS, loop settings
`batch_keyframe_operations`	Batch operations: offset, scale, reverse, mirror
`animation_copy_paste`	Copy animation data between bones/animations

Quick Start

Create a Simple Animation

1. create_animation: name="walk", animation_length=1.0, loop=true
2. manage_keyframes: bone_name="leg_left", channel="rotation",
   keyframes=[{time: 0, values: [30, 0, 0]}, {time: 0.5, values: [-30, 0, 0]}]
3. animation_timeline: action="play"

Animation Channels

```
position
```
- [x, y, z] offset
```
rotation
```
- [x, y, z] degrees
```
scale
```
- [x, y, z] or uniform number

Interpolation Types

```
linear
```
- Constant rate
```
catmullrom
```
- Smooth spline
```
bezier
```
- Custom curves
```
step
```
- Instant change

Common Workflows

Walk Cycle (1 second)

create_animation: name="walk", animation_length=1.0, loop=true, bones={
  "leg_left": [
    {time: 0, rotation: [30, 0, 0]},
    {time: 0.5, rotation: [-30, 0, 0]},
    {time: 1.0, rotation: [30, 0, 0]}
  ],
  "leg_right": [
    {time: 0, rotation: [-30, 0, 0]},
    {time: 0.5, rotation: [30, 0, 0]},
    {time: 1.0, rotation: [-30, 0, 0]}
  ]
}

Smooth Curves

animation_graph_editor: bone_name="arm", channel="rotation", action="smooth"

Copy Animation to Mirrored Bone

animation_copy_paste: action="copy", source={bone: "arm_left"}
animation_copy_paste: action="mirror_paste", target={bone: "arm_right", mirror_axis: "x"}

Batch Timing Adjustment

batch_keyframe_operations: operation="scale", selection="all",
  parameters={scale_factor: 2.0}  # Double animation duration

Bone Rigging

Create Bone Structure

bone_rigging: action="create", bone_data={name: "spine", origin: [0, 12, 0]}
bone_rigging: action="create", bone_data={name: "head", origin: [0, 24, 0], parent: "spine"}

Set Pivot Point

bone_rigging: action="set_pivot", bone_data={name: "arm_left", origin: [4, 22, 0]}

Timeline Control

animation_timeline: action="set_fps", fps=60
animation_timeline: action="set_length", length=2.5
animation_timeline: action="loop", loop_mode="loop"  # or "once", "hold"
animation_timeline: action="set_time", time=0.5
animation_timeline: action="play"

Tips

Use
```
list_outline
```
to see available bones before animating
Set up bone hierarchy first with
```
bone_rigging
```
before adding keyframes
Use
```
catmullrom
```
interpolation for organic movement
Use
```
step
```
interpolation for mechanical/robotic movement
Mirror animations for symmetrical rigs to save time