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helixent: Instructions file for Codex

AGENTS.md

helixent AGENTS.md is an instructions file for Codex, OpenCode from MagicCube/helixent. It costs 1,628 tokens per session, scanned A, original, no licence file.

Project instructions for MagicCube/helixent, describing its four-layer architecture and coding guidance.

In plain words
What is it for?
Understanding the project structure and following its foundation, agent, and coding conventions.
Why use it?
They give a coding agent project-specific context and rules, reducing guesswork when changing the code.

Instructions file for CodexOpenCode

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

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

not rated 687repo 5mo ago A scan 1,628 tokens no licence
View source ↗ MagicCube/helixent
Reuse

Borrowing it

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

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 helixent AGENTS.md

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/magiccube/helixent/agents-md"><img src="https://agentmods.dev/badge/instructions/magiccube/helixent/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,628 This file is loaded in full into every session.
When invoked 1,628 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 $0.01628 $0.01628
Opus 5.5 $0.00651 $0.00651
Sonnet 5.5 $0.00326 $0.00326
Haiku 4.5 $0.00163 $0.00163

Measured 2mo ago against content hash 66df7a1d1c86, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

helixent 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 · 145 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 · 145 lines · 1,628 tokens per session scan A 66df7a1d1c86

Subscribe to this mod's changes

helixent AGENTS.md is an instructions file published in the GitHub repository MagicCube/helixent (687 stars, last pushed 5mo ago), with no licence file. It adds 1,628 tokens to every session, about $0.0065 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 2026-08-30.

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Related

helixent AGENTS.md compared with instructions from other repositories

helixent AGENTS.md next to 6 instructions from other repositories
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helixent AGENTS.mdMagicCube/helixentInstructions file6875mo agononeA1,628Codex, OpenCode
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next.js AGENTS.mdvercel/next.jsInstructions file143ktodayMITA7,461Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchainInstructions file149kyesterdayMITA4,680Codex, OpenCode
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vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA3,093GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file274k2d agoMITA4,313Codex, OpenCode