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+3. **Restart** or **start** ComfyUI.  
+4. Look under **Nodes → sampling → custom** in ComfyUI’s UI. The **`SigmaGraphNode`** should appear.
+
+## Usage
+
+1. **Add** the Sigma Graph Node to your ComfyUI workflow.  
+2. **Connect** its output (`SIGMAS`) to a sampler that accepts custom sigmas (for example, a KSampler node set to external sigmas).  
+3. **Adjust** the `steps` parameter.  
+4. **Drag** points on the graph or **edit** the sigma values in the text box (comma-separated).  
+- Click the **▼** button to apply text changes to the graph.  
+- The node automatically recalculates your schedule after each drag or text edit.  
+5. **(Optional)** Use the presets to save and load different graph shapes.
+
+## File Overview
+
+- **`__init__.py`**  
+Ties this folder into ComfyUI’s extension system. Sets the `WEB_DIRECTORY` to the `js` subfolder so ComfyUI can serve `SigmaGraphWidget.js`.
+
+- **`SigmaGraphNode.py`**  
+Defines the custom node class. Handles:
+- Input parameters: `steps` (int) and `graph_data` (JSON string).
+- Conversion of graph points into a PyTorch tensor of sigmas.
+- The final reversed schedule (since many ComfyUI samplers read sigmas in that order).
+
+- **`SigmaGraphWidget.js`**  
+JavaScript front-end controlling the **interactive graph** and the **bidirectional** text input. It:
+- Registers a custom DOM widget type (`"sigma_graph"`).
+- Draws a canvas for the curve, with points you can drag, double-click, or remove by right-click.
+- Syncs changes to the node’s internal JSON string value (`graph_data`).
+- Updates a live text preview of the sigma schedule and can parse new sigma values from the text.
+
+## Contributing
+
+Feel free to open issues or pull requests if you have improvements or bug fixes!
+
+---
+
+**Happy sampling!** Enjoy your interactive sigma graph editor.