A command that turns a ComfyUI workflow into a Mermaid flowchart. ComfyUI is a tool for building image-generation workflows from connected processing steps, and Mermaid is a text format for diagrams.

Use it with a ComfyUI workflow in API format, either from a file or pasted JSON, to produce a left-to-right diagram.

It makes a workflow's steps, settings, and connections easier to inspect than raw JSON.

viz — Command for Claude Code by sandyup/comfyui-mcp

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo

git clone --depth 1 https://github.com/sandyup/comfyui-mcp

Made for: Claude Code.

Or install comfy, the plugin that ships this one along with the rest of its 32 skills, 11 commands, 4 agents, 2 hooks.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/commands/sandyup/comfyui-mcp/viz/github.svg)](https://agentmods.dev/commands/sandyup/comfyui-mcp/viz)

Your own site

<a href="https://agentmods.dev/commands/sandyup/comfyui-mcp/viz"><img src="https://agentmods.dev/badge/commands/sandyup/comfyui-mcp/viz/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/commands/sandyup/comfyui-mcp/viz"><img src="https://agentmods.dev/badge/commands/sandyup/comfyui-mcp/viz.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 12 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 445 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin 91% copy Near-identical to another mod in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00012	$0.00445
Opus 5.5	$0.00005	$0.00178
Sonnet 5.5	$0.00002	$0.00089
Haiku 4.5	$0.00001	$0.00044

Measured 2mo ago against content hash c88dfc4917c0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

viz scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

91% identical to viz — 6 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

plugin/commands/viz.md · 40 lines

What it actually says

/comfy-viz — Visualize a Workflow

The user wants to visualize a ComfyUI workflow as a mermaid flowchart diagram.

Instructions

Get the workflow JSON. The argument may be: $ARGUMENTS
- A file path to a workflow JSON file — read it with the Read tool
- Inline JSON pasted directly as the argument
- Nothing — ask the user to provide a workflow file path or paste the JSON
Validate the input. The workflow must be in ComfyUI's API format: an object where keys are node IDs and values have class_type and inputs. If it looks like the web UI format (has nodes and links arrays), tell the user it needs to be in API format and suggest they export it via "Save (API Format)" in ComfyUI.
Visualize. Use the visualize_workflow tool with:
- workflow: the parsed workflow JSON
- show_values: true (to include parameter values in node labels)
- direction: "LR" (left-to-right, easiest to read)
Present the diagram. Show the mermaid output to the user. The mermaid code block will render as a flowchart showing nodes grouped by category with labeled connections.

Example

User: /comfy-viz ~/workflows/my-workflow.json

Steps:

Read the file at ~/workflows/my-workflow.json
Pass contents to visualize_workflow
Display the mermaid diagram

Notes

If the workflow is very large (50+ nodes), suggest using direction: "TB" (top-to-bottom) for better readability
The diagram groups nodes into subgraphs by category: loading, conditioning, sampling, image, output
Connection edges are labeled with data types (MODEL, CLIP, CONDITIONING, LATENT, IMAGE, VAE, etc.)

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

2mo ago First seen · 40 lines · 12 tokens per session scan A c88dfc4917c0

Subscribe to this mod's changes

viz is a command published in the GitHub repository sandyup/comfyui-mcp (1 stars, last pushed 4mo ago), licensed MIT. It adds 12 tokens to every session and 445 once invoked, about $0.0000 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 91% identical to viz, differing in 6 lines, and is treated as a copy.

Creative and media

viz next to 6 commands from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
vizsandyup/comfyui-mcp	Command	1	4mo ago	MIT	A	12	Claude Code
checklistgithub/spec-kit	Command	148k	yesterday	MIT	A	13	Claude Code
clarifygithub/spec-kit	Command	148k	yesterday	MIT	A	27	Claude Code
specifygithub/spec-kit	Command	148k	yesterday	MIT	A	13	Claude Code
analyzegithub/spec-kit	Command	148k	yesterday	MIT	A	26	Claude Code
convergegithub/spec-kit	Command	148k	yesterday	MIT	A	35	Claude Code
implementgithub/spec-kit	Command	148k	yesterday	MIT	A	14	Claude Code