cadence-rules: Instructions file for Codex

AGENTS.md

cadence-rules AGENTS.md is an instructions file for Codex, OpenCode from onflow/cadence-rules. It costs 1,508 tokens per session, scanned A, original, no licence file.

A set of AGENTS.md instructions for the onflow/cadence-rules project, covering its files, Cadence language rules, workflows, setup, and DeFi action patterns.

In plain words
What is it for?
Use it when working on Cadence rules, project workflows, or DeFi action composition in that repository.
Why use it?
It helps the coding agent follow the project’s documented structure and development rules.

Instructions file for CodexOpenCode

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

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

Reuse

Borrowing it

Nothing to install: this file belongs to onflow/cadence-rules. 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/onflow/cadence-rules/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/onflow/cadence-rules

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 cadence-rules AGENTS.md

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/onflow/cadence-rules/agents-md"><img src="https://agentmods.dev/badge/instructions/onflow/cadence-rules/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,508 This file is loaded in full into every session.
When invoked 1,508 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 $0.01508 $0.01508
Opus 5.5 $0.00603 $0.00603
Sonnet 5.5 $0.00302 $0.00302
Haiku 4.5 $0.00151 $0.00151

Measured 2mo ago against content hash b60592430caf, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

cadence-rules 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 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.

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 · 110 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

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. 2mo ago First seen · 110 lines · 1,508 tokens per session scan A b60592430caf

Subscribe to this mod's changes

cadence-rules AGENTS.md is an instructions file published in the GitHub repository onflow/cadence-rules (3 stars, last pushed 6mo ago), with no licence file. It adds 1,508 tokens to every session, about $0.0060 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 2026-08-31.

Related

cadence-rules AGENTS.md compared with instructions from other repositories

cadence-rules AGENTS.md next to 6 instructions from other repositories
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cadence-rules AGENTS.mdonflow/cadence-rulesInstructions file36mo agononeA1,508Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA9,719GitHub Copilot
next.js AGENTS.mdvercel/next.jsInstructions file143ktodayMITA7,461Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA5,649GitHub Copilot
langchain AGENTS.mdlangchain-ai/langchainInstructions file149ktodayMITA4,680Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA3,093GitHub Copilot
vscode ai-customization.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA1,907GitHub Copilot