ComfyUI-CharacterPromptBuffer

A set of ComfyUI custom nodes for generating multiple character variations in a single queue run.

Nodes

Character Prompt Manager

Assembles a structured prompt from fixed parts (base quality tags, character description, others) and a list of variations. Outputs one complete prompt per variation as a batch.

Inputs

• base — quality tags, style, shot type
• character — character description (hair, eyes, outfit base, etc.)
• others — background, lighting, atmosphere
• variations — connect from Variation Buffer
• randomize_seed — generates a random seed per variation when enabled
• manual_seed — used when randomize_seed is off

Outputs

• text — list of assembled prompts (one per variation)
• seed — list of seeds (one per variation)

---

Variation Buffer

Collects up to 10 string inputs and merges them into a single list for the Character Prompt Manager. Connect a Primitive or String (Multiline) node to each slot you want to use. Unconnected slots are ignored.

Outputs

• variations — merged list of all connected variations

---

Workflow

[String Multiline] ─┐
[String Multiline] ──► Variation Buffer ──► Character Prompt Manager ──► CLIP Text Encode ──► KSampler
[String Multiline] ─┘

1. Add Variation Buffer and Character Prompt Manager from conditioning → Character Prompt Manager
2. Connect them together
3. Connect Primitive or String (Multiline) nodes to the Variation Buffer slots
4. Connect text → CLIP Text Encode, seed → KSampler seed

One queue run generates one image per connected variation.

Installation

Via ComfyUI Manager

Search for ComfyUI-CharacterPromptBuffer in the Custom Nodes section.

Manual

cd ComfyUI/custom_nodes
git clone https://github.com/Kyreo/ComfyUI-CharacterPromptBuffer

Restart ComfyUI.

Requirements

No external dependencies.

License

MIT