comfyui

Generates images, videos, and music through ComfyUI workflows in OpenMontage.

Updated Sep 1, 2026
One-click install
npx skills add https://github.com/zamansepeti43/c-rak-agent --skill comfyui-zamansepeti43
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: comfyui
Source: https://github.com/zamansepeti43/c-rak-agent/tree/main/video-engine/.agents/skills/comfyui
Command: npx skills add https://github.com/zamansepeti43/c-rak-agent --skill comfyui-zamansepeti43

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve? Running ComfyUI generation jobs from OpenMontage requires correct server configuration, API-format workflow exports, output node selection, and model placement, and mistakes in any of these cause failed or unreproducible generations. ## Core Features & Use Cases - Workflow Selection and Execution: Choose between bundled workflows and custom workflow_json/workflow_path inputs for comfyui_image, comfyui_video, and comfyui_music, including low-VRAM options like Wan 2.1 1.3B, LTXV FP8, and GGUF quantized workflows for 8GB-12GB GPUs. - Output Node and Model Management: Identify the correct terminal saver node (SaveImage, SaveVideo, VHS_VideoCombine, SaveAudioMP3), place diffusion models, text encoders, VAEs, and LoRAs in the expected ComfyUI model folders, and handle structured missing_models responses. - Failure Recovery and Provenance: Resume timed-out jobs with resume_prompt_id, record workflow_name, workflow_model, and workflow_model_stack for reproducibility, and distinguish hosted Partner Nodes from local open-weight paths. - Use Case: A user imports a community Wan 2.2 GGUF video workflow, passes it as workflow_path with output_node set to the VHS_VideoCombine node ID, and the tool reports any missing models with download hints before generating. ## Quick Start Use the comfyui skill to generate a short video with the bundled Wan workflow, or run my custom workflow file with the correct output node selected.

Frequently Asked Questions about comfyui

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I use a custom ComfyUI workflow in OpenMontage?

Export the workflow from ComfyUI in API format, then pass it as workflow_json or workflow_path along with output_node set to the terminal saver node ID as a string. UI-layout JSON exports will not submit and must be re-exported with API format enabled.

How do I choose the output_node for a ComfyUI workflow?

Pick the node that writes the final artifact, typically SaveImage, SaveVideo, VHS_VideoCombine, or SaveAudioMP3 for music. Pass the node ID as a string like "108", not the class name, and prefer the final deliverable node over previews.

Which ComfyUI workflows work on 8GB to 12GB GPUs?

Lower-footprint options include Wan 2.1 1.3B, LTXV FP8 or quantized workflows, and Wan 2.2 GGUF community workflows. The bundled Wan 2.2 14B FP8 video workflows target 16GB-class hardware, so they are not suitable for smaller GPUs.

Why does my ComfyUI generation fail with missing models?

The workflow references model files not present in the expected ComfyUI folders. Read the structured data.missing_models payload for each file's name, role, destination hint, and download URL, then place models under diffusion_models, text_encoders, vae, or loras as required.

What happens when a long ComfyUI render times out?

A timeout is recoverable: check ComfyUI history first, since the server may have finished the job. Otherwise call the tool again with resume_prompt_id set to the prompt_id from the timeout error to resume waiting without resubmitting.

Are ComfyUI Partner Nodes like seedance_2.5 free and local?

No. Partner Nodes such as gemini_omni_flash, seedance_2.5, and minimax_h3_api call hosted APIs and require network access, a logged-in Comfy account, and prepaid credits. The minimax_h3_local path is the separate open-weight alternative.