n8n-mcp AGENTS.md

n8n-mcp AGENTS.md is an instructions file for Codex, OpenCode from get2knowio/n8n-mcp. It costs 526 tokens per session, scanned A, original, MIT.

A project instruction file for coding agents working on an n8n MCP server. It records the project’s build, test, typing, layout, naming, logging, and security rules.

In plain words
What is it for?
Guiding development, testing, formatting, error handling, imports, and secret-safe logging in this TypeScript project.
Why use it?
It gives an agent the repository-specific rules it needs to make compatible changes and avoid issues such as logging secrets or corrupting MCP output.

Instructions file for CodexOpenCode

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 instructions/get2knowio/n8n-mcp/agents-md
Clone the repo
git clone --depth 1 https://github.com/get2knowio/n8n-mcp

Made for: Codex, OpenCode.

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 n8n-mcp AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/get2knowio/n8n-mcp/agents-md.svg)](https://agentmods.dev/instructions/get2knowio/n8n-mcp/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/get2knowio/n8n-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/get2knowio/n8n-mcp/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 526 This file is loaded in full into every session.
When invoked 526 The same file — it is already loaded in full.
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.

ModelPer sessionOnce invoked
Fable 5 $0.00526 $0.00526
Opus 5 $0.00263 $0.00263
Sonnet 5 $0.00105 $0.00105
Haiku 4.5 $0.00053 $0.00053

Measured 4d ago against content hash 5b86b6551829, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

n8n-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 4d 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 · 21 lines

What it actually says

AGENTS.md — Quick Rules for Coding Agents

  • Build: npm install; npm run build; watch: npm run dev.
  • Lint: npm run lint (type-check only; no ESLint/Prettier).
  • Test (all): npm test; coverage: npm run test:coverage; watch: npm run test:watch.
  • Test (single file): npm test -- src/__tests__/n8n-client.test.ts.
  • Test (single case): npm test -- -t "pattern" (works with watch too).
  • Node/TS: Node >= 18; ESM only; strict TS (tsconfig.json).
  • Imports: Always use relative ESM with .js extension in TS (e.g., ./types.js).
  • Layout: source in src/; tests in src/__tests__/ as <name>.test.ts; build to dist/.
  • Formatting: two-space indent; match surrounding style; avoid gratuitous refactors.
  • Types: avoid any; prefer explicit types; use unknown then narrow; Record<string, unknown> for maps.
  • Naming: files kebab-case; types/interfaces PascalCase; functions/vars camelCase; constants UPPER_SNAKE if truly constant.
  • Errors: Return structured JSON via success()/error() from src/output.ts.
  • Logging: Use logger (stderr). Do not console.log (MCP stdout must stay clean).
  • Secrets: Never log secrets; built-in redaction exists; don’t echo env vars.
  • Debug: MCP_DEBUG=debug and/or MCP_ENABLE_SOURCE_MAPS=1 for richer stacks.
  • Jest: ESM via ts-jest; tests matched by **/__tests__/**/*.test.ts; mapper strips .js in tests.
  • CI parity: npm ci && npm run lint && npm run build && npm test && npm run test:coverage before PRs.
  • Copilot: Follow .github/copilot-instructions.md — never cancel builds/tests; timeouts: install 60s, build 30s, test 30s, coverage 60s.
  • Cursor rules: None present now; if added under .cursor/ or .cursorrules, follow them.
  • Security: Don’t commit secrets; configure N8N_BASE_URL + N8N_API_KEY or N8N_USERNAME/N8N_PASSWORD.
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. 4d ago First seen · 21 lines · 526 tokens per session scan A 5b86b6551829

Subscribe to this mod's changes

n8n-mcp AGENTS.md is an instructions file published in the GitHub repository get2knowio/n8n-mcp (0 stars, last pushed 4d ago), licensed MIT. It adds 526 tokens to every session, about $0.0026 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.

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