ComfyUI LoRA Hook + Trigger Text Node

A clean and minimal ComfyUI custom node that automatically links LoRA hooks with LoRA-specific trigger text files.

This node removes the need to manually manage trigger prompts for each LoRA by detecting and loading .txt files placed next to the LoRA model.

---

✨ Features

• Creates a LoRA Hook Group using comfy_extras.nodes_hooks.CreateHookLora
• Automatically detects trigger .txt files for each LoRA
• Provides a dropdown selector (UI-only) for trigger selection
• Outputs both the LoRA hook group and the selected trigger text
• Safe text loading with encoding fallback:
  • UTF-8
  • UTF-8-SIG
  • CP949
• No external dependencies
• Minimal, stable, and workflow-safe design

---

📁 Folder Structure

Example (generic, not user data)

models/
└── loras/
    ├── my_lora.safetensors
    └── my_lora/
        ├── trigger1.txt
        ├── style.txt
        └── preset_prompt.txt

Rules

• The folder name must match the LoRA filename without extension
• Every .txt file inside that folder appears in the trigger selector
• If no .txt files are found, the trigger list defaults to NONE

---

📥 Installation

1) Install via ComfyUI Manager (Recommended)

1. Open ComfyUI Manager
2. Go to Custom Nodes → Install via URL
3. Paste:

https://github.com/akaugun/comfyui-lora-hook-trigger

4. Click Install
5. Restart ComfyUI

Hard refresh if UI does not update:

• Windows / Linux: Ctrl + F5
• macOS: Cmd + Shift + R

---

2) Manual Installation

ComfyUI/custom_nodes/comfyui-lora-hook-trigger

comfyui-lora-hook-trigger/
├── __init__.py
└── js/
    └── lora_trigger_ui.js

Restart ComfyUI.

---

🧩 Node Overview

Inputs

| Name | Type | Description | |-----|-----|------------| | lora_name | Combo | Select LoRA | | trigger | String | Selected TXT name or NONE | | strength_model | Float | LoRA model strength | | strength_clip | Float | LoRA CLIP strength | | prev_hooks | HOOKS (optional) | Previous hook group to append |

Outputs

| Name | Type | Description | |-----|-----|------------| | hook | HOOKS | LoRA hook group | | trigger_text | String | Contents of selected TXT |

---

🛠 How It Works

Python (__init__.py)

• Defines the custom node
• Exposes /lora_trigger_list API
• Scans trigger TXT files next to LoRA models
• Builds and combines LoRA hooks safely

JavaScript (js/lora_trigger_ui.js)

• Injects a UI-only trigger dropdown
• Keeps workflow serialization stable
• Syncs selected trigger with hidden value widget

---

⚙ Requirements

• ComfyUI (latest recommended)
• No external dependencies

---

📄 License

See LICENSE.