ark-n8n-custom-nodes: Instructions file for Claude Code

CLAUDE.md

ark-n8n-custom-nodes CLAUDE.md is an instructions file for Claude Code from skokaina/ark-n8n-custom-nodes. It costs 3,784 tokens per session, scanned A, original, MIT.

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.

In plain words
What is it for?
Use it when developing, testing, building, or deploying ARK Agent, Model, Team, and Evaluation nodes for n8n.
Why use it?
It explains where node code, tests, examples, container files, and Kubernetes deployment settings belong.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md.

This is skokaina/ark-n8n-custom-nodes's own configuration. It tells Claude Code how to work on ark-n8n-custom-nodes 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 ark-n8n-custom-nodes configures →

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is import { ArkAgent } from '../ArkAgent.node';.

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

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.

agentmods badge for ark-n8n-custom-nodes CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/skokaina/ark-n8n-custom-nodes/claude-md/github.svg)](https://agentmods.dev/instructions/skokaina/ark-n8n-custom-nodes/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/skokaina/ark-n8n-custom-nodes/claude-md"><img src="https://agentmods.dev/badge/instructions/skokaina/ark-n8n-custom-nodes/claude-md/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.

agentmods 80×15 button for ark-n8n-custom-nodes CLAUDE.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/skokaina/ark-n8n-custom-nodes/claude-md"><img src="https://agentmods.dev/badge/instructions/skokaina/ark-n8n-custom-nodes/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.03784 $0.03784
Opus 5 $0.01892 $0.01892
Sonnet 5 $0.00757 $0.00757
Haiku 4.5 $0.00378 $0.00378

Measured 10d ago against content hash 7b1b0506e93f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, 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 10d 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.

  1. 10d 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 6mo ago), licensed MIT. It adds 3,784 tokens to every session, about $0.0189 per session on Opus 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.

Related

Other instructions, from other repositories

next.js AGENTS.md

AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.

vercel/next.js · 7,296 tokens

codex AGENTS.md

AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.

openai/codex · 5,153 tokens

vscode buildNext.instructions.md

Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

microsoft/vscode · 6,785 tokens

spec-kit AGENTS.md

AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.

github/spec-kit · 7,104 tokens

vscode oss-third-party-notices.instructions.md

Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).

microsoft/vscode · 5,001 tokens

langchain AGENTS.md

AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.

langchain-ai/langchain · 4,469 tokens