Random Prompt (All)

You know the drill: you're out of ideas, so you load up a wildcard pack and let randomness throw a prompt at the wall. Random Prompt (All) is a different take on the same idea - instead of parsing __tag__ syntax inside your prompt text, it's a dropdown menu where each category has a disabled/random/specific-choice toggle, and it builds the prompt for you. And here's the twist: on its first run it generates its own wildcard library inside your ComfyUI install.

How it works

The node is based on code from "jice" (credited right in the source), and it maintains a folder of plain-text wildcard files at ComfyUI/models/wildcards/RvTools_v2/all/. On first use, if that folder doesn't exist, the node creates it and writes out a set of .txt files covering roughly twenty categories - Woman, Man, Fictional Character, Humanoids, Animals, Vehicles, Shotstyle, Angle of View, Locations, Artists, Cameras, Lighting, and a big AdelAi block (Artists, Styles, FX, Lighting, Cameras, Films). Each dropdown in the UI maps to one of those files, and the node picks a random line from every category you enable, then joins them into the output prompt string.

The inputs are all the same shape: disabled (skip it), a 🎲random marker, or a specific choice from that file's lines - e.g. AdelAi_Films offers agfa apx 400, cinestill 800t, kodak ultra max 800 and the rest. The one numeric input is seed (optional, default 0), which lets you reproduce a given random roll.

The single prompt output is a STRING you feed to a CLIP Text Encode. Because the data lives in models/wildcards, you can edit those .txt files yourself and the dropdowns will pick up your additions on the next load - that's the part that makes it a genuine library rather than a one-shot gimmick.

Where it shines

This is a great "break the block" node for tag-based models (SDXL, Illustrious, Pony) and for cinematic/photo styles specifically - the AdelAi categories carry real film stock and camera names that read well in a prompt. Pair it with a fixed seed when you land on a prompt you like, so you can rebuild it exactly. It's also handy for batch testing: set a couple of categories to random, leave the rest fixed, and generate variations.

Installing it

It ships in ComfyUI-RvTools_v2 - Manager → search "ComfyUI-RvTools_v2", or:

cd ComfyUI/custom_nodes
git clone https://github.com/r-vage/ComfyUI-RvTools_v2
# restart ComfyUI

No downloads needed; the wildcard files are generated on first run. If you ever want the originals back after editing, delete the RvTools_v2/all folder and the node recreates it.

Gotchas

Because the files are generated into your models folder, a clean reinstall of the pack won't restore edits you made - back up any custom .txt files you care about. And since this is a [RvTools]-suffixed node from an unmaintained pack (README points to ComfyUI_Eclipse as the successor), shared workflows referencing the old naming can confuse Manager's auto-install. If a downloaded workflow says "Random Prompt by jice" is missing, that's usually the old-repo name; the [RvTools] version is the one you're looking at.