WAN Prompter (Creepybits)

Straight talk: as shipped, this node returns an error every single time you run it. It's meant to be the Wan-flavored version of the pack's other prompt nodes - prepend a fixed system prompt about how to write for Wan video models, then glue on your text. But the file it loads, wan_prompt.txt, doesn't exist in the repo. The README's category docs point you to it, the code asks for it, and the file is just... not there. So the honest first line of this review is: make the file, or skip the node.

That said, the concept is the right one. Wan 2.1 and 2.2 are the default open video models for local ComfyUI work, and they reward prompts that describe scene, camera, motion, and subject explicitly. A dedicated prompter that enforces that formatting is genuinely useful - this one just ships unfinished.

How it works

The mechanism is identical to the Scene Director and System Prompt nodes: at startup it reads a text file from the pack's assets/prompts/ folder, then concatenates that fixed text with your text_2 input. One string in, one combined string out.

The difference is the missing file. When the read fails, the node's error handler kicks in and you get the string "ERROR: Prompt file not found." in the text output - which, if you're not paying attention, will sail straight into your LLM and get treated as a real prompt.

The input and output

• text_2 - your scene description (multiline).
• Output: text - the combined prompt, or the error string until you fix the file.

The fix

It's a two-minute job:

# from your ComfyUI install:
cd custom_nodes/ComfyUI-Creepy_nodes/assets/prompts
# create wan_prompt.txt with your own Wan prompting brief

Drop in whatever rules you want Wan prompts to follow - describe the shot, subject motion, camera movement, lighting, duration. Then restart ComfyUI so the node re-reads it. After that it behaves exactly like its siblings.

Installing it

Part of ComfyUI-Creepy_nodes:

cd ComfyUI/custom_nodes
git clone https://github.com/Creepybits/ComfyUI-Creepy_nodes

restart. Or ComfyUI Manager, searching "Creepy_nodes". Then apply the fix above - the install alone isn't enough.

Where it bites

Everything here traces back to that one missing file, which is worth knowing before you burn time debugging. It also means the node has no sensible default behavior - there's no bundled prompt at all, unlike the other prompt nodes in the pack, so you're writing your own system text regardless. If that friction isn't worth it, a plain text node plus a big prompt does the same job. But if you want a dedicated, restart-once Wan formatting brief living in one file, this is that node once you've given it the file it expects.