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comfyui-node-basics

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ComfyUI custom node fundamentals - V3 node structure, Schema, inputs/outputs, registration. Use when creating new ComfyUI custom nodes, defining node classes, or setting up a custom node project.

plugins/comfyui-custom-nodes/skills/comfyui-node-basics/SKILL.md

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# ComfyUI Custom Node Basics (V3 API)

ComfyUI uses Python classes to define nodes. The **V3 API** is the current recommended approach. Nodes inherit from `io.ComfyNode` and define a schema + execute method.

## Quick Start

```python
from comfy_api.latest import ComfyExtension, io

class MyNode(io.ComfyNode):
    @classmethod
    def define_schema(cls):
        return io.Schema(
            node_id="MyNode",
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