ComfyUI Dynamic Prompting Simplified

A minimal dynamic prompting + mirrored wildcards node for ComfyUI.

Features

• {a|b|{c|d}} nested choice expansion (deterministic by seed).
• __name__ loads wildcards/name.txt.
• __name-mir__ strictly loads wildcards/name-mir.txt.
• In negative phase, if __name__ is used and name-mir.txt exists, it auto-mirrors to all options except the chosen one.
• Deterministic selection per seed.

Install

1. Copy this folder to: <ComfyUI>/custom_nodes/ComfyUI-DynPromptSimplified
2. (Optional) Put your wildcard files in ComfyUI-DynPromptSimplified/wildcards/ or set wildcard_dir to any folder.
3. Restart ComfyUI.

Node

DynPrompt Expand (mirrored wildcards)

• Inputs: text, negative, seed, wildcard_dir, auto_neg_from_mir
• Outputs: expanded text, expanded negative

Wire the outputs into your usual CLIP Text Encode → KSampler chain.

Examples

Wildcards:

wildcards/hats.txt
{red hat|blue hat|green hat}

wildcards/hats-mir.txt
{red hat|blue hat|green hat}

Prompt:

a portrait wearing __hats-mir__, background {studio|outdoor|cyberpunk}

• Positive becomes a single chosen hat (by seed).
• Negative becomes the other hats, comma-separated.

Notes

• Missing wildcard files resolve to empty strings.
• Choice/wildcard expansion is capped to prevent runaway recursion.
• If negative is blank and auto_neg_from_mir is ON, the node scans the positive for __tokens__ and auto-builds a mirrored negative when possible.

License: GPLv3 (same as the original)