n8n: Instructions file for Codex

AGENTS.md

n8n AGENTS.md is an instructions file for Codex, OpenCode from n8n-io/n8n. It costs 5,536 tokens per session, scanned A, original, no licence file.

Project instructions for coding agents working on n8n, including its guidelines, agent skills, Claude Code setup, and essential commands.

In plain words
What is it for?
They are for guiding setup, code changes, testing, and other work in the n8n repository.
Why use it?
They give agents the information needed to follow the repository's development conventions.

Instructions file for CodexOpenCode ✓ vendor

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

This is n8n-io/n8n's own configuration. It tells Codex and OpenCode how to work on n8n 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 n8n configures →

Reuse

Borrowing it

Nothing to install: this file belongs to n8n-io/n8n. 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/n8n-io/n8n/master/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/n8n-io/n8n

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 AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/n8n-io/n8n/agents-md/github.svg)](https://agentmods.dev/instructions/n8n-io/n8n/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/n8n-io/n8n/agents-md"><img src="https://agentmods.dev/badge/instructions/n8n-io/n8n/agents-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 n8n AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/n8n-io/n8n/agents-md"><img src="https://agentmods.dev/badge/instructions/n8n-io/n8n/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 5,536 This file is loaded in full into every session.
When invoked 5,536 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 unknown 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 $0.05536 $0.05536
Opus 5.5 $0.02214 $0.02214
Sonnet 5.5 $0.01107 $0.01107
Haiku 4.5 $0.00554 $0.00554

Measured yesterday against content hash e05a3d5a313f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

n8n 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 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.

AGENTS.md · 439 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. yesterday Changed · +5 lines · +89 tokens per session e05a3d5a313f
  2. 6d ago Changed · +16 lines · +221 tokens per session 42ab66759dc3
  3. 7d ago Changed · +4 lines · +68 tokens per session b59799272b70
  4. 8d ago Changed · +4 lines · +48 tokens per session 14ee4d112743
  5. 14d ago Changed · +7 tokens per session 4a5874934e12
  6. 15d ago Changed · +1 lines · +11 tokens per session a58f5514d292
  7. 20d ago Changed · -37 lines · -402 tokens per session 6b61ea8b86ba
  8. 23d ago Changed · -1 lines · -24 tokens per session 19e841fb5351
  9. 27d ago Changed · +15 lines · -72 tokens per session 9bf023d4fef5
  10. 1mo ago First seen · 432 lines · 5,590 tokens per session scan A 0b2a080701fe

Subscribe to this mod's changes

n8n AGENTS.md is an instructions file published in the GitHub repository n8n-io/n8n (207,533 stars, last pushed today), with no licence file. It adds 5,536 tokens to every session, about $0.0221 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 2026-08-30.

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