invest-brain: Instructions file for Codex

AGENTS.md

invest-brain AGENTS.md is an instructions file for Codex, OpenCode from lj22503/invest-brain. It costs 1,523 tokens per session, scanned A, original, AGPL-3.0.

A set of repository instructions for the invest-brain project. It explains the project’s purpose, structure, technology and where to find important parts of the code.

In plain words
What is it for?
Use it when an agent needs guidance on the invest-brain codebase, its architecture or its development setup.
Why use it?
It gives coding agents consistent project context so they can navigate and work in the repository with fewer assumptions.

Instructions file for CodexOpenCode

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

This is lj22503/invest-brain's own configuration. It tells Codex and OpenCode how to work on invest-brain 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 invest-brain configures →

Reuse

Borrowing it

Nothing to install: this file belongs to lj22503/invest-brain. 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/lj22503/invest-brain/master/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/lj22503/invest-brain

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 invest-brain AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/lj22503/invest-brain/agents-md/github.svg)](https://agentmods.dev/instructions/lj22503/invest-brain/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/lj22503/invest-brain/agents-md"><img src="https://agentmods.dev/badge/instructions/lj22503/invest-brain/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 invest-brain AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/lj22503/invest-brain/agents-md"><img src="https://agentmods.dev/badge/instructions/lj22503/invest-brain/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,523 This file is loaded in full into every session.
When invoked 1,523 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 $0.01523 $0.01523
Opus 5.5 $0.00609 $0.00609
Sonnet 5.5 $0.00305 $0.00305
Haiku 4.5 $0.00152 $0.00152

Measured 2mo ago against content hash e0f9d4e5dd78, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

invest-brain 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 · 134 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. 2mo ago First seen · 134 lines · 1,523 tokens per session scan A e0f9d4e5dd78

Subscribe to this mod's changes

invest-brain AGENTS.md is an instructions file published in the GitHub repository lj22503/invest-brain (0 stars, last pushed yesterday), licensed AGPL-3.0. It adds 1,523 tokens to every session, about $0.0061 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

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