openrun: Instructions file for Codex

AGENTS.md

openrun AGENTS.md is an instructions file for Codex, OpenCode from dennisadriaans/openrun. It costs 9,958 tokens per session, scanned B, original, AGPL-3.0.

A project instruction file for the openrun repository. It gives coding agents a map of the project, commands to run, architecture details, and rules to follow.

In plain words
What is it for?
Use it when working on openrun to learn its structure, development commands, architecture, and hard rules.
Why use it?
It helps an agent understand the repository before changing code and reduces mistakes caused by missing project-specific guidance.

Instructions file for CodexOpenCode

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

This is dennisadriaans/openrun's own configuration. It tells Codex and OpenCode how to work on openrun 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 openrun configures →

Reuse

Borrowing it

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

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 openrun AGENTS.md

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/dennisadriaans/openrun/agents-md"><img src="https://agentmods.dev/badge/instructions/dennisadriaans/openrun/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 9,958 This file is loaded in full into every session.
When invoked 9,958 The same file — it is already loaded in full.
Security scan B 2 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 $0.09958 $0.09958
Opus 5.5 $0.03983 $0.03983
Sonnet 5.5 $0.01992 $0.01992
Haiku 4.5 $0.00996 $0.00996

Measured 1mo ago against content hash b87f724580e8, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

openrun AGENTS.md scanned grade B with 2 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 1mo 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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

| Gemini CLI | Defaults to `GEMINI.md`. `.gemini/settings.json` sets `context.fileName` to `["AGENTS.md", "GEMINI.md"]`, so it loads this file; workspace settings beat `~/.gemini/settings.json`. |

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

`node-cron` and `child_process` out of the client bundle; a top-level static import of
AGENTS.md · 418 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

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. 1mo ago Changed · +2 lines · +97 tokens per session b87f724580e8
  2. 1mo ago Changed · -3 lines · +740 tokens per session 2b38032afb0b
  3. 1mo ago Changed · +9 lines · +288 tokens per session 834eef1d7b10
  4. 1mo ago Changed · +11 tokens per session 43f1fa387393
  5. 1mo ago Changed · -6 tokens per session 131667f72e11
  6. 1mo ago Changed · +71 lines · +1,723 tokens per session d2a0b1488fa3
  7. 2mo ago First seen · 339 lines · 7,105 tokens per session scan B 357535a3b5e3

Subscribe to this mod's changes

openrun AGENTS.md is an instructions file published in the GitHub repository dennisadriaans/openrun (29 stars, last pushed 1mo ago), licensed AGPL-3.0. It adds 9,958 tokens to every session, about $0.0398 per session on Opus 5.5. A static security scan graded it B with 2 findings (reads agent configuration directories, runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Related

Other instructions, from other repositories

vscode buildNext.instructions.md

Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

microsoft/vscode · 9,715 tokens

next.js AGENTS.md

AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.

vercel/next.js · 7,461 tokens

vscode oss-third-party-notices.instructions.md

Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).

microsoft/vscode · 5,262 tokens

langchain AGENTS.md

AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.

langchain-ai/langchain · 4,680 tokens

vscode copilot-instructions.md

Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).

microsoft/vscode · 2,731 tokens

deepseek-harness AGENTS.md

AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.

deepseek-ai/deepseek-harness · 4,261 tokens