cameo: Instructions file for Codex

AGENTS.md

cameo AGENTS.md is an instructions file for Codex, OpenCode from hAcKlyc/cameo. It costs 3,192 tokens per session, scanned A, original, AGPL-3.0.

Project-specific instructions for an AI coding agent working on the cameo project. The supplied details are too limited to describe the project's actual tasks or rules further.

In plain words
What is it for?
It is for guiding coding, interface, documentation, and commit-related work in the cameo project.
Why use it?
It gives the agent a reference for project vocabulary and the required reading order, reducing the risk of making changes without following the repository's instructions.

Instructions file for CodexOpenCode

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

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

Reuse

Borrowing it

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

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 cameo AGENTS.md

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/hacklyc/cameo/agents-md"><img src="https://agentmods.dev/badge/instructions/hacklyc/cameo/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 3,192 This file is loaded in full into every session.
When invoked 3,192 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 $0.03192 $0.03192
Opus 5.5 $0.01277 $0.01277
Sonnet 5.5 $0.00638 $0.00638
Haiku 4.5 $0.00319 $0.00319

Measured 2mo ago against content hash 6f18cb92cb34, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

cameo 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 · 174 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 · 174 lines · 3,192 tokens per session scan A 6f18cb92cb34

Subscribe to this mod's changes

cameo AGENTS.md is an instructions file published in the GitHub repository hAcKlyc/cameo (60 stars, last pushed 4mo ago), licensed AGPL-3.0. It adds 3,192 tokens to every session, about $0.0128 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.

Related

cameo AGENTS.md compared with instructions from other repositories

cameo AGENTS.md next to 6 instructions from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
cameo AGENTS.mdhAcKlyc/cameoInstructions file604mo agoAGPL-3.0A3,192Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA9,719GitHub Copilot
vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA5,516GitHub Copilot
next.js AGENTS.mdvercel/next.jsInstructions file143kyesterdayMITA7,461Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchainInstructions file149ktodayMITA4,680Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA3,093GitHub Copilot
vscode model-prompts.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA2,022GitHub Copilot