comfyui-mcp: Instructions file for Codex

AGENTS.md

comfyui-mcp AGENTS.md is an instructions file for Codex, OpenCode from GermaniU/comfyui-mcp. It costs 1,063 tokens per session, scanned A, original, MIT.

Project instructions for an MCP server that connects AI agents to ComfyUI, a visual system for running image-generation workflows. The server runs image generation through a local ComfyUI installation and GPU setup.

In plain words
What is it for?
Use them when modifying image-generation workflows, model listing, health checks, image viewing, GPU coordination, or tests for the ComfyUI server.
Why use it?
They explain the server's architecture, available tools, local services, and coding rules needed to change it correctly.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions AGENTS.md.

This is GermaniU/comfyui-mcp's own configuration. It tells Codex and OpenCode how to work on comfyui-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything comfyui-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to GermaniU/comfyui-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/GermaniU/comfyui-mcp/master/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/GermaniU/comfyui-mcp

Made for: Codex, OpenCode.

Wrote this? Show the measurements

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README.md
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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.

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Per session 1,063 This file is loaded in full into every session.
When invoked 1,063 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.01063 $0.01063
Opus 5.5 $0.00425 $0.00425
Sonnet 5.5 $0.00213 $0.00213
Haiku 4.5 $0.00106 $0.00106

Measured 12d ago against content hash 99c264c51864, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

comfyui-mcp AGENTS.md 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 12d 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.

AGENTS.md · 77 lines

How it starts

The opening of the file, as written. The whole thing — 77 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md — comfyui-mcp

MCP HTTP/SSE server que wrappea ComfyUI (SDXL, RTX 3060) para generación de imágenes. Corre en Pop!_OS junto con ComfyUI (puerto 8188) y expone tools vía HTTP en el puerto 8201. Cualquier gateway Hermes de la LAN lo consume sin instalar nada localmente.

Stack

  • Python 3.11+, fastmcp, httpx, uvicorn, starlette
  • ComfyUI API en http://127.0.0.1:8188 (loopback, misma máquina)
  • GPU Broker (~/stack/gpu-broker/gpu-broker.sh) coordina la GPU con llama-server

Estructura (vertical slice + clean)

src/comfyui_mcp/
├── config.py          # env vars, presets, aspects, constantes
├── comfy_client.py    # HTTP client thin a ComfyUI (system_stats, prompt, history, view)
├── gpu_arbiter.py     # ensure_comfyui_running + wake
├── workflow.py        # build_txt2img + build_img2img (+ FaceDetailer opcional) + build_video
├── tools/             # generate_image, img2img, generate_video, list_models, comfy_health, comfy_view_url
│   ├── __init__.py
│   ├── generate.py
│   ├── img2img.py
│   ├── video.py
│   ├── models.py
│   ├── health.py
│   └── view.py
└── server.py          # FastMCP + entry point (stdio/HTTP)
tests/                 # pytest por módulo

Reglas de estilo (heredadas del AGENTS.md de ComfyUI)

  • Cambios chicos y directos. Tocar el camino de código más angosto que explica el problema.
  • Cambiar la menor cantidad de archivos posible.
  • Preferir fixes prácticos sobre arquitectura amplia. Abstracciones solo cuando quitan lógica repetida real.
  • Preferir menos dependencias. No agregar deps a menos que sean necesarias.
  • Borrar código obsoleto agresivamente. Sin ramas muertas, sin funciones nunca llamadas.
  • Preservar APIs existentes, nombres de nodos, layout de archivos y compatibilidad de workflows.
  • El código debe verse hand-written. Cambios que lean como código genérico de IA serán rechazados: capas helper innecesarias, nombres vagos, comentarios boilerplate, ramas defensivas sin failure mode real, rewrites amplios.

Read the full file on GitHub · 77 lines

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.

  1. 12d ago Changed · +2 lines · +51 tokens per session 99c264c51864
  2. 22d ago Changed · +5 lines · +112 tokens per session 70f9767f9cdc
  3. 1mo ago First seen · 70 lines · 900 tokens per session scan A dba7c9a341ae

Subscribe to this mod's changes

comfyui-mcp AGENTS.md is an instructions file published in the GitHub repository GermaniU/comfyui-mcp (2 stars, last pushed 6d ago), licensed MIT. It adds 1,063 tokens to every session, about $0.0043 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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