What is ark-n8n-custom-nodes CLAUDE.md?

A project guide for building custom n8n nodes for ARK, an agent runtime that runs on Kubernetes. n8n is a tool for connecting services in visual workflows.

Use it when developing, testing, building, or deploying ARK Agent, Model, Team, and Evaluation nodes for n8n.

It explains where node code, tests, examples, container files, and Kubernetes deployment settings belong.

How skokaina/ark-n8n-custom-nodes configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to skokaina/ark-n8n-custom-nodes. 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/skokaina/ark-n8n-custom-nodes/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/skokaina/ark-n8n-custom-nodes

Made for: Claude Code.

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 3,784 This file is loaded in full into every session.

When invoked 3,784 The same file — it is already loaded in full.

Security scan A 1 finding. 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.

Model	Per session	Once invoked
Fable 5.1	$0.03784	$0.03784
Opus 5.5	$0.01514	$0.01514
Sonnet 5.5	$0.00757	$0.00757
Haiku 4.5	$0.00378	$0.00378

Measured 2mo ago against content hash 7b1b0506e93f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ark-n8n-custom-nodes CLAUDE.md scanned grade A with 1 finding 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

kubectl exec -it deployment/ark-n8n -- curl http://ark-api.default.svc.cluster.local:8000/v1/agents

CLAUDE.md · 523 lines

How it starts

The opening of the file, as written. The whole thing — 523 lines — stays where its author put it; the contents beside it link to each section on GitHub.

ARK Custom Nodes for n8n - Development Guide

Overview

This repository contains custom n8n nodes for ARK (Agentic Runtime for Kubernetes) packaged as a standalone, deployable service.

Project Structure

ark-n8n-custom-nodes/
├── .github/workflows/  - CI/CD pipelines (lint, test, build, helm)
├── nodes/              - Custom n8n nodes (TypeScript)
│   ├── credentials/    - ARK API credential definition
│   ├── nodes/          - Node implementations (Agent, Model, Team, Evaluation)
│   ├── test-helpers/   - Test utilities and fixtures
│   └── __tests__/      - Comprehensive test suites
├── chart/              - Helm chart for Kubernetes deployment
│   ├── templates/      - K8s resource templates
│   ├── Chart.yaml      - Chart metadata
│   └── values.yaml     - Default configuration
├── samples/            - Example n8n workflows
├── Dockerfile          - Custom n8n image with ARK nodes pre-installed
└── devspace.yaml       - Local development configuration

Development Workflow

Custom Nodes Development

Location: nodes/

All custom nodes follow the n8n INodeType interface pattern:

export class ArkAgent implements INodeType {
  description: INodeTypeDescription = {
    displayName: 'ARK Agent',
    name: 'arkAgent',
    // ... properties, credentials, methods
  };

  async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
    // Node execution logic
  }
}

Key files:

nodes/nodes/ArkAgent/ArkAgent.node.ts - Simple agent execution node
nodes/nodes/ArkAgentAdvanced/ArkAgentAdvanced.node.ts - Advanced agent with memory, session management, and dynamic configuration
nodes/nodes/ArkModel/ArkModel.node.ts - Model query node
nodes/nodes/ArkTeam/ArkTeam.node.ts - Multi-agent team coordination
nodes/nodes/ArkEvaluation/ArkEvaluation.node.ts - Quality evaluation node
nodes/credentials/ArkApi.credentials.ts - ARK API authentication
nodes/utils/arkHelpers.ts - Shared utility functions for ARK API interactions

Read the full file on GitHub · 523 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.

2mo ago First seen · 523 lines · 3,784 tokens per session scan A 7b1b0506e93f

Subscribe to this mod's changes

ark-n8n-custom-nodes CLAUDE.md is an instructions file published in the GitHub repository skokaina/ark-n8n-custom-nodes (5 stars, last pushed 8mo ago), licensed MIT. It adds 3,784 tokens to every session, about $0.0151 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

LLM agentic-ai ai-agents helm kubernetes

ark-n8n-custom-nodes CLAUDE.md next to 6 instructions from other repositories
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ark-n8n-custom-nodes: Instructions file for Claude Code