# Shader Graph Create Custom Node

> Generates custom Shader Graph nodes from HLSL code. Use when the user wants to create a new Shader Graph node or make existing HLSL code work as a reflected function node.

- Skill: `gabrielmoreira/shader-graph-create-custom-node` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add gabrielmoreira/shader-graph-create-custom-node`
- Raw SKILL.md: https://api.skillmd.com/api/skills/gabrielmoreira/shader-graph-create-custom-node/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: gabrielmoreira (https://skillmd.com/u/gabrielmoreira)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/gabrielmoreira/shader-graph-create-custom-node

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# Generating a custom Shader Graph node

## Step 1: Generate an HLSL function definition
- The function must be preceded by the preprocessor define `UNITY_EXPORT_REFLECTION`

## Step 2: Decorate with Shader Graph hint tags
- See `resources/all_hints.hlsl` for all valid hint tags and usage patterns
- C#-style documentation tags are supported outside of `funchints` or `paramhints` blocks
- Required function hints:
  - `sg:ProviderKey`
  - `sg:SearchCategory`
  - `sg:SearchTerms`
  - `sg:DisplayName`

## Step 3: Write the code to an asset
- Search the project for a `ShaderInclude` asset (`.hlsl`) that already contains custom Shader Graph nodes
- If a matching asset exists, show the user its current contents and ask for confirmation before appending the new code
- If no matching asset exists, create a new `.hlsl` asset
- Ensure the file begins with `#include "ShaderApiReflectionSupport.hlsl"`