SF Prompt List

Anyone who's done prompt A/B testing in ComfyUI knows the pain: you want to flip one term and see what it does, but the string lives in a single giant text box and editing it is a museum of find-and-replace. SF Prompt List is the boring, effective fix. It gives you a stack of separate text boxes, and on every run it joins the non-empty ones into a single comma-separated string. Mute a box, the output changes. Bypass one, same thing. You can literally rerun with one word removed by deleting a box's contents instead of surgery on a long prompt.

How it works

Under the hood it's genuinely simple: the node defines 50 inputs (prompt_1 through prompt_50), takes an inputcount telling it how many to process, skips any that are empty or whitespace, and returns ",".join(...). The clever part is the front-end. The pack ships a small JavaScript extension that hides every box beyond inputcount - so you set the count to 3 and the node shows three tidy inputs, not fifty empty ones. That's the whole trick, and it's a good one. It's the same pattern the ROADMAP lists as the pack's first feature, so this node is basically the pack's founding idea.

The inputs that matter

• inputcount - an integer from 2 to 50, default 5. This controls how many boxes show and how many get processed. Only the first inputcount boxes are ever read, so a box 7 of 50 that still has text is ignored, not included.
• prompt_1 … prompt_50 - multiline text boxes. Order in the output is the box order, and empty boxes are skipped entirely, which means you can leave slots unused without getting stray commas.

Output is a single STRING named text - wire it straight into a CLIP text encoder or a prompt concatenation node. Because it's comma-joined, the result slots into almost any SD/SDXL/Flux-style positive prompt without extra formatting.

Installing it

Part of the SF ComfyUI Nodes pack from Stillfront. Easiest via ComfyUI Manager: search "SF ComfyUI Nodes" → Install → restart. Manual:

cd ComfyUI/custom_nodes
git clone https://github.com/Stillfront/comfyui-sf-nodes.git
cd comfyui-sf-nodes
pip install -r requirements.txt

No models, no API keys, no dependencies beyond what ComfyUI already has.

Common issues

Two things trip people up. First, the node only shows boxes you can actually see - if you set inputcount to 3 and then connect something to prompt_5, that connection is ignored because only the first 3 are processed. Keep your wiring inside the count. Second, the hiding behavior lives in the JS extension, so if you're running a weird ComfyUI front-end or a version that doesn't load web/, you'll see all fifty boxes at once (it still works, just ugly). And remember it's a comma joiner, not a template engine - if you need newlines between items, this isn't the node; a plain "combine strings" node with a newline delimiter is.