agent-rules-lint: Instructions file for Codex

AGENTS.md

agent-rules-lint AGENTS.md is an instructions file for Codex, OpenCode from Uky0Yang/agent-rules-lint. It costs 165 tokens per session, scanned A, original, MIT.

Repository instructions for maintaining agent-rules-lint, a Python command-line tool that checks AI agent instruction files.

In plain words
What is it for?
Use them when changing the linter’s code, tests, documentation, or GitHub workflow files, then run its tests and lint command.
Why use it?
They give contributors a shared scope, safety rules, commands, and coding standards, reducing inconsistent changes and unsafe checks.

Instructions file for CodexOpenCode

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

This is Uky0Yang/agent-rules-lint's own configuration. It tells Codex and OpenCode how to work on agent-rules-lint 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 agent-rules-lint configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Uky0Yang/agent-rules-lint. 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/Uky0Yang/agent-rules-lint/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/Uky0Yang/agent-rules-lint

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 agent-rules-lint AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/uky0yang/agent-rules-lint/agents-md/github.svg)](https://agentmods.dev/instructions/uky0yang/agent-rules-lint/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/uky0yang/agent-rules-lint/agents-md"><img src="https://agentmods.dev/badge/instructions/uky0yang/agent-rules-lint/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 agent-rules-lint AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/uky0yang/agent-rules-lint/agents-md"><img src="https://agentmods.dev/badge/instructions/uky0yang/agent-rules-lint/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 165 This file is loaded in full into every session.
When invoked 165 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00165 $0.00165
Opus 5.5 $0.00066 $0.00066
Sonnet 5.5 $0.00033 $0.00033
Haiku 4.5 $0.00016 $0.00016

Measured 2mo ago against content hash 50cd3beacc65, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

agent-rules-lint 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 · 32 lines

What it actually says

Agent Instructions

Purpose

Maintain agent-rules-lint, a dependency-free Python CLI for linting AI agent instruction files.

Scope

These instructions apply to code, tests, documentation, and GitHub workflow files in this repository.

Commands

Run the standard checks before publishing:

python -m unittest discover -s tests
python -m agent_rules_lint .

Safety

  • Do not add network calls to the default lint path.
  • Do not add model calls to the default lint path.
  • Do not commit API keys, access tokens, cookies, private credentials, or generated build output.
  • Keep checks deterministic so they are safe for CI.

Style

  • Prefer standard-library Python.
  • Keep rule messages short and actionable.
  • Add tests when changing lint behavior.
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 · 32 lines · 165 tokens per session scan A 50cd3beacc65

Subscribe to this mod's changes

agent-rules-lint AGENTS.md is an instructions file published in the GitHub repository Uky0Yang/agent-rules-lint (1 stars, last pushed yesterday), licensed MIT. It adds 165 tokens to every session, about $0.0007 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.

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