A command that creates a Claude Code skill for a ComfyUI custom node pack, using a ComfyUI Registry ID or GitHub repository URL. The skill documents the pack's node types, inputs, outputs, and usage examples.

Use it to create a skill for a named ComfyUI node pack, or to request the pack choice when no source is provided.

It saves you from manually turning a node pack's documentation into a format Claude Code can use. It also tells you where the generated skill was saved and whether Claude Code may need restarting.

node-skill — Command by sandyup

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.

agentmods

npx agentmods add commands/sandyup/comfyui-mcp/node-skill

Clone the repo

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

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 393 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. Scan, not verified.

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.

Model	Per session	Once invoked
Fable 5	$0.00012	$0.00393
Opus 5	$0.00006	$0.00197
Sonnet 5	$0.00002	$0.00079
Haiku 4.5	$0.00001	$0.00039

Measured yesterday against content hash 1b3243b809ae, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

node-skill 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 yesterday.

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.

plugin/commands/node-skill.md · 40 lines

What it actually says

/comfy-skill — Generate a Node Pack Skill

The user wants to generate a Claude Code skill file for a ComfyUI custom node pack.

Instructions

Parse the argument. The argument is: $ARGUMENTS
- A ComfyUI Registry ID (e.g., comfyui-impact-pack)
- A GitHub repository URL (e.g., https://github.com/ltdrdata/ComfyUI-Impact-Pack)
- Nothing — ask the user which node pack they want to generate a skill for
Generate the skill. Use the generate_node_skill tool with:
- source: the registry ID or GitHub URL
- install_in: save to skills/<pack-name>/ inside the plugin directory
Report the result. Tell the user:
- Where the skill file was saved
- A brief summary of what nodes are covered
- That they may need to restart Claude Code for the skill to take effect

Example

User: /comfy-skill comfyui-impact-pack

Steps:

Call generate_node_skill with source "comfyui-impact-pack" and install_in set to the skills directory
Show the user where the file was saved and what it covers

Notes

The generated skill includes node class types, input/output specs, and usage examples
Skills are saved as SKILL.md files in subdirectories under the plugin's skills/ folder
If the node pack isn't found in the registry, suggest the user provide a GitHub URL instead
If nodes from the pack are installed locally, the skill will include live /object_info data

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.

yesterday First seen · 40 lines · 12 tokens per session scan A 1b3243b809ae

Subscribe to this mod's changes

node-skill is a command published in the GitHub repository sandyup/comfyui-mcp (1 stars, last pushed 1mo ago), licensed MIT. It adds 12 tokens to every session and 393 once invoked, about $0.0001 per session on Opus 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.

Building agents

verify

Adversarial spec-vs-implementation verification for a completed task. Dispatches the spec-mentor subagent with fresh context (no anchoring bias), parses its verdict (PASS / DRIFT / NEEDS-MARTY), and updates the verification queue. The v7.4.0 architectural replacement for a dedicated "mentor session.".

MartyBonacci/specswarm · 68 tokens

node-skill

Getting it into your agent

What it costs to keep this loaded

Grade A, and why

Nothing flagged

What it actually says

/comfy-skill — Generate a Node Pack Skill

Instructions

Example

Notes

What this file has done since we first saw it

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