MOSS BBOX Prompter for ComfyUI
A visual bounding-box editor for MOSS-Image. Place characters, objects, and text on the canvas, then give each box its own prompt.
What’s New in V2
Image Analysis writes a Character or Object prompt into the selected box from a reference image.
Keep & Edit lets you switch analysis OFF and edit the generated prompt. A successful analysis run with it ON can replace the text in the selected box.
Target Selection lets you use Auto or choose a specific box from the subgraph controls.
Installation
Install the custom nodes with Git
Open a terminal in your ComfyUI folder and run:
cd custom_nodes
git clone --branch v2.0.1 https://github.com/ukr8b3g-cmyk/MossImage-BBOX-Prompter.gitIf rgthree-comfy is missing, install it from the same custom_nodes folder. It provides the workflow’s Power Lora Loader.
git clone https://github.com/rgthree/rgthree-comfy.gitRestart ComfyUI and refresh your browser.
2. Download and open the V2 workflow
Download the ZIP from this Civitai page and extract it. It contains one workflow (MOSS_BBOX_Canvas_V2.json) and one reference image.
Open the JSON in ComfyUI, select your installed model files, and load the included reference image or one of your own. Image analysis starts OFF. Turn it ON when you want to generate a prompt for the selected box.
Model Files
Main GitHub repository · Custom nodes v2.0.1
Description
### What’s New in v2.0
- Image Analysis: Automatically create a Character or Object box prompt from a reference image.
- Keep & Edit: Switch analysis OFF to keep the result and edit it freely.
- Simple Targeting: Use Auto or select a specific box, including inside subgraphs.
- Updated V2 Workflow: Existing V1 workflows remain compatible.
Note: Running analysis ON again overwrites the edited prompt.

