What is cardano-org AGENTS.md?

Onboarding instructions for AI agents working on cardano.org, the website for the Cardano blockchain project. They explain the repository layout, contribution process, and project principles.

Use them when planning, implementing, or reviewing changes in the cardano.org repository.

They provide project-specific boundaries and setup rules, including using Yarn instead of npm, before an agent edits the site.

How cardano-foundation/cardano-org configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to cardano-foundation/cardano-org. 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/cardano-foundation/cardano-org/staging/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/cardano-foundation/cardano-org

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/cardano-foundation/cardano-org/agents-md/github.svg)](https://agentmods.dev/instructions/cardano-foundation/cardano-org/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/cardano-foundation/cardano-org/agents-md"><img src="https://agentmods.dev/badge/instructions/cardano-foundation/cardano-org/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/cardano-foundation/cardano-org/agents-md"><img src="https://agentmods.dev/badge/instructions/cardano-foundation/cardano-org/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 1,576 This file is loaded in full into every session.

When invoked 1,576 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 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	$0.01576	$0.01576
Opus 5.5	$0.00630	$0.00630
Sonnet 5.5	$0.00315	$0.00315
Haiku 4.5	$0.00158	$0.00158

Measured 11d ago against content hash 4a5f3feaa4b8, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

cardano-org 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 11d 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 · 134 lines

How it starts

The opening of the file, as written. The whole thing — 134 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md - AI Agent Onboarding for cardano.org

Use yarn for all dependency and script management, not npm: the repo is pinned to yarn.lock, and PRs must not modify that file.

Welcome! This guide enables AI agents (and their operators) to contribute productively and safely to cardano.org. It covers philosophy, repo map, quickstart, quality gates, guardrails, and content rules.

Project Philosophy

Collective Ownership: cardano.org is managed by a community, not a single entity. All contributions are welcome and valued.
Incremental Evolution: Prefer small, reviewable, continuously shipped changes. Avoid large, disruptive changes unless discussed and agreed.
Discussion First: For any non-trivial change, start with a discussion before implementation.

Essential Resources

README.md: Project overview, setup, and contribution boundaries.
CONTRIBUTING.md: Contribution guidelines and workflow.
docs/get-involved/: Guides for all types of contributions (content, code, design, data, community).
docs/get-involved/style-guide.md: Editorial style guide (spelling, capitalisation, brand-name conventions). Mandatory for all content and code comments.
glossary/: Per-term definitions rendered at /glossary/<slug>. Reference these for consistent terminology across docs and UI copy.

Repository Map (Key Folders)

src/ - Source code (React components, logic)
docs/ - Documentation, guides, editorial content
blog/ - Blog posts
static/ - Static assets (images, downloads)
scripts/ - Utility scripts
docusaurus.config.js - Docusaurus site config
sidebars.js - Sidebar/navigation config
variables.js - Repository and branch URLs used by build scripts
src/css/custom.css - Global styles and design tokens (see docs/get-involved/design-tokens.md)
package.json - Scripts, dependencies
netlify.toml - Netlify response headers and redirects

Read the full file on GitHub · 134 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.

11d ago Changed · +44 tokens per session 4a5f3feaa4b8
1mo ago Changed · +37 tokens per session 3b4d70f65f33
1mo ago Changed · +13 lines · +315 tokens per session adbe9e3fb0ae
2mo ago Changed · -15 lines · -44 tokens per session 0d7b090f65e1
2mo ago First seen · 136 lines · 1,224 tokens per session scan A 69681e81640c

Subscribe to this mod's changes

cardano-org AGENTS.md is an instructions file published in the GitHub repository cardano-foundation/cardano-org (102 stars, last pushed yesterday), licensed Apache-2.0. It adds 1,576 tokens to every session, about $0.0063 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.

Web3 and blockchain cardano cardano-community

cardano-org AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
cardano-org AGENTS.mdcardano-foundation/cardano-org	Instructions file	102	yesterday	Apache-2.0	A	1,576	Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	9,719	GitHub Copilot
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	5,516	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	yesterday	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	today	MIT	A	4,680	Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	3,093	GitHub Copilot
vscode model-prompts.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	2,022	GitHub Copilot

cardano-org: Instructions file for Codex