read-agents-md

A rule that tells an agent to read AGENTS.md, a repository file containing entry-point information and high-level project constraints.

In plain words
What is it for?
It is for orienting an agent before it edits or investigates a code repository.
Why use it?
It prevents the agent from starting work without first seeing the repository's basic guidance.

Cursor rule for Codex

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 rules/prisma/orm/read-agents-md
Clone the repo
git clone --depth 1 https://github.com/prisma/orm

Made for: Codex.

Per session 31 This file is loaded in full into every session.
When invoked 31 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 $0.00031 $0.00031
Opus 5 $0.00015 $0.00015
Sonnet 5 $0.00006 $0.00006
Haiku 4.5 $0.00003 $0.00003

Measured 2d ago against content hash ac4953266baa, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

read-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 2d 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

.agents/rules/read-agents-md.mdc · 8 lines

What it actually says

Read AGENTS.md.

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. 2d ago First seen · 8 lines · 31 tokens per session scan A ac4953266baa

Subscribe to this mod's changes

read-agents-md is a cursor rule published in the GitHub repository prisma/orm (47,579 stars, last pushed yesterday), licensed Apache-2.0. It adds 31 tokens to every session, about $0.0002 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 2026-08-30.