Mepi Positive Prompt
What your phone writes when it means 'make this'
- STRING
The most honest node in the pack
Mepi Positive Prompt is a text box that returns the text. You type a prompt, it hands the same string back out its STRING output, and you feed that into the positive input of a CLIP Text Encode node. The implementation is return (prompt,) - there is nothing else to explain, and the author's output tooltip ("Prompt for Positive.") says it all.
The reason it exists is ComfyMepi, a small mobile frontend for ComfyUI by rhplus0831. Its phone UI can't manipulate a node graph, so it edits values inside a template workflow and resubmits it. Every Mepi node is a slot the frontend writes into - this one is the "what do you want?" field. On desktop, you'd never reach for it; the built-in CLIP Text Encode node already has a positive text input and does the actual encoding. This node just carries the string to the part of the graph where the encoding happens.
What you set
One input, one output:
prompt(STRING, multiline) - your prompt text. Newlines are fine.STRINGoutput - labeled "Prompt for Positive." Wire it to the positive text input of CLIP Text Encode.
That's the whole surface area. No weights, no prompt templates, no tag expansion.
Install
Same as every node in this pack. Through ComfyUI Manager: Install Custom Nodes → search "ComfyMepi", install, restart. Or manually:
cd ComfyUI/custom_nodes
git clone https://github.com/rhplus0831/ComfyMepi
Restart ComfyUI. There's no requirements.txt and nothing to download - the node depends only on ComfyUI's own code.
Troubleshooting
A pass-through node doesn't fail on its own, so when things go wrong the problem is upstream. A couple of prompt-world traps worth knowing while you're here:
- Different model families want different prompt styles. Danbooru-style tags suit anime checkpoints; full sentences suit photorealistic SDXL models. If your images look off, the model, not this node, is dictating the grammar.
- Watch out for prompt conflicts. A positive full of contradictory terms (or a negative that fights it) produces muddy results - the fix is shortening the prompts, not rebuilding the graph.
One fair warning about the pack: it's a personal project with almost no community footprint and light maintenance. If this node ever annoys you, just delete it and use CLIP Text Encode - the two are interchangeable for anything ComfyMepi isn't driving.
Inputs (1)
| Name | Type | Default | Description |
|---|---|---|---|
| prompt | STRING | — |
Outputs (1)
| Name | Type | Description |
|---|---|---|
| STRING | STRING | Prompt for Positive. |