Individual skill

train-character-lora

Train a character/identity LoRA locally on FLUX.1-dev via the comfyui-mcp train_* tools (GPU Docker + ostris ai-toolkit). Use when the user wants to train a LoRA of a person/character from their photos on the local GPU. Covers dataset prep, launch, monitoring, and using the result in ComfyUI. For WAN/Z-Image training via the ai-toolkit UI see ai-toolkit-trainer.

plugin/skills/train-character-lora/SKILL.md

Read pinned source

Source commit 707474d24d0d251ba04a1bebdf86620cef2eaa8b

What was checked

Matches the observed repository HEAD: Yes
Scanner rules are current: Yes
Repository scan complete: No
Skill scan complete: No
Observed behavior: Instructions only
Last checked: Nov 10, 2026

These are observations at the recorded commit, not a guarantee of safety. Review the source before running it.

Install this skill

Choose an agent in your Stack or copy a command below. Commands fetch the pinned commit and copy only this skill directory. Existing destinations are refused. Copying a command does not install anything.

An install command is unavailable: current rules, complete repository and skill scans, an eligible behavior level and a permitted license are required.

Repository context

Repository stars (not skill ratings): 919
Repository last updated: Nov 9, 2026
License: MIT

Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.

agent-skills Repository topic
ai-agent Repository topic
claude-code Repository topic
claude-plugin Repository topic
comfyui Repository topic
comfyui-extension Repository topic
flux Repository topic
image-generation Repository topic
mcp Repository topic
mcp-server Repository topic
design Derived category
devops Derived category
design-interface Derived category
devops-containers Derived category

Files and excerpt

File metadata and permitted, redacted excerpts come from the recorded scan. Source links are pinned to that commit.

Browse files

SKILL.mdcore · 5,239 bytes

Read excerpt


# Train a Character LoRA (local, Flux.1-dev)

## Overview

The trainer runs ostris ai-toolkit's `run.py` inside a headless GPU Docker container,
driven through the three `train_*` MCP tools. You (the LLM) are the UI. Each takes
an `action`: `train_prepare_dataset` owns the datasets, `train_start` owns the jobs, and
`train_doctor` owns the trainer itself. You generate the dataset, launch the job, watch
progress, and the finished LoRA lands in ComfyUI `models/loras/` and the LoRA catalog
without further steps.

- Base model: FLUX.1-dev (the best proven character consistency; needs ~24GB VRAM with
  quantization, RTX 4090 class).
- Phase-1 scope: character LoRAs only. Style/slider/edit and other bases come later.