This starter workflow demonstrates how to use ComfyUI Subgraphs to package a complete process into a single, reusable node. The center of the graph is a Subgraph node (type ID: 8db1792c-6f71-4e96-bd38-557d8ce41de6). Click the small icon at the top-right of that node to "enter" the subgraph and see the internal nodes and connections that do the real work. A MarkdownNote in the graph provides in-place guidance, and several nodes are intentionally set to Bypass so you can practice enabling/disabling parts of the pipeline.

Around the subgraph, simple I/O nodes like LoadImage and SaveImage act as anchors so you can test end-to-end execution quickly. The model links include flux-2-klein-base-4b-fp8.safetensors under diffusion_models, showing you where to place weights if your subgraph uses a diffusion model. This template is useful for learning subgraph navigation, organizing complex chains into a clean interface, and turning a process (e.g., audio-to-audio effects or image transforms) into a reusable building block you can drop into larger workflows.