RivalHub: Instructions file for Codex

AGENTS.md

RivalHub AGENTS.md is an instructions file for Codex, OpenCode from Starfie1d1272/RivalHub. It costs 2,402 tokens per session, scanned A, original, AGPL-3.0.

A project-specific instruction file for the RivalHub code repository. It records how the project is structured, which commands to use, and rules for its database, security, authentication, and permissions.

In plain words
What is it for?
Following RivalHub’s engineering constraints, project commands, architecture rules, and access-control requirements while working in the repository.
Why use it?
It gives a coding agent the repository’s local rules and assumptions, reducing the risk of unsuitable changes or commands.

Instructions file for CodexOpenCode

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

This is Starfie1d1272/RivalHub's own configuration. It tells Codex and OpenCode how to work on RivalHub 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 RivalHub configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Starfie1d1272/RivalHub. 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/Starfie1d1272/RivalHub/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/Starfie1d1272/RivalHub

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 RivalHub AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/starfie1d1272/rivalhub/agents-md/github.svg)](https://agentmods.dev/instructions/starfie1d1272/rivalhub/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/starfie1d1272/rivalhub/agents-md"><img src="https://agentmods.dev/badge/instructions/starfie1d1272/rivalhub/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 RivalHub AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/starfie1d1272/rivalhub/agents-md"><img src="https://agentmods.dev/badge/instructions/starfie1d1272/rivalhub/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 2,402 This file is loaded in full into every session.
When invoked 2,402 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 $0.02402 $0.02402
Opus 5.5 $0.00961 $0.00961
Sonnet 5.5 $0.00480 $0.00480
Haiku 4.5 $0.00240 $0.00240

Measured 12d ago against content hash 5d0a64e522aa, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

RivalHub 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 12d 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 · 80 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. 12d ago Changed · +3 tokens per session 5d0a64e522aa
  2. 20d ago Changed · +14 lines · +620 tokens per session a11426fccc8e
  3. 26d ago Changed · +1 lines · +61 tokens per session 7bd8a340564d
  4. 28d ago Changed b2db53cbeded
  5. 1mo ago Changed · +2 lines · +86 tokens per session f7b95309f69a
  6. 1mo ago Changed · +6 lines · +110 tokens per session 840ecc8f1985
  7. 1mo ago Changed · +17 tokens per session bac5cb9c1787
  8. 1mo ago Changed · +2 lines · +66 tokens per session 31737fe7cc20
  9. 1mo ago Changed · +4 lines · +255 tokens per session f3cfaf5dcb0f
  10. 1mo ago First seen · 51 lines · 1,184 tokens per session scan A e2dcdabb6585

Subscribe to this mod's changes

RivalHub AGENTS.md is an instructions file published in the GitHub repository Starfie1d1272/RivalHub (16 stars, last pushed yesterday), licensed AGPL-3.0. It adds 2,402 tokens to every session, about $0.0096 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

RivalHub AGENTS.md compared with instructions from other repositories

RivalHub AGENTS.md next to 6 instructions from other repositories
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RivalHub AGENTS.mdStarfie1d1272/RivalHubInstructions file16yesterdayAGPL-3.0A2,402Codex, OpenCode
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next.js AGENTS.mdvercel/next.jsInstructions file143kyesterdayMITA7,461Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchainInstructions file149kyesterdayMITA4,680Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA5,516GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA3,093GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file274k2d agoMITA4,313Codex, OpenCode