nuclear: Instructions file for Codex

AGENTS.md

nuclear AGENTS.md is an instructions file for Codex, OpenCode from nukeop/nuclear. It costs 3,373 tokens per session, scanned A, original, AGPL-3.0.

A project instruction file describing the nukeop/nuclear codebase, its packages, commands, and development guidelines. AGENTS.md is a file that tells coding agents how to work in a project.

In plain words
What is it for?
Use it when an agent is developing or maintaining the nukeop/nuclear project and needs its local overview and working rules.
Why use it?
Coding agents need project-specific context to avoid using the wrong commands, structure, or conventions. These instructions provide that context for work on this repository.

Instructions file for CodexOpenCode

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

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

About the project

Nuclear is a free, open-source desktop music player that searches for and streams music from available sources without ads or tracking. It is for listeners on Windows, macOS, or Linux who want search, playlists, artist and album browsing, themes, and plugin-based extensions.

nukeop/nuclear · 18,876 stars · on GitHub · nuclearplayer.com

Reuse

Borrowing it

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

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 nuclear AGENTS.md

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/nukeop/nuclear/agents-md"><img src="https://agentmods.dev/badge/instructions/nukeop/nuclear/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 3,373 This file is loaded in full into every session.
When invoked 3,373 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 $0.03373 $0.03373
Opus 5.5 $0.01349 $0.01349
Sonnet 5.5 $0.00675 $0.00675
Haiku 4.5 $0.00337 $0.00337

Measured 1mo ago against content hash 2a14cd85bb43, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

nuclear 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 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.

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 · 377 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 · -1 lines · -10 tokens per session 2a14cd85bb43
  2. 1mo ago Changed · +3 lines · +55 tokens per session 1fe4cafa0963
  3. 2mo ago First seen · 375 lines · 3,328 tokens per session scan A 26784b313f64

Subscribe to this mod's changes

nuclear AGENTS.md is an instructions file published in the GitHub repository nukeop/nuclear (18,876 stars, last pushed today), licensed AGPL-3.0. It adds 3,373 tokens to every session, about $0.0135 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

nuclear AGENTS.md compared with instructions from other repositories

nuclear AGENTS.md next to 6 instructions from other repositories
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nuclear AGENTS.mdnukeop/nuclearInstructions file19ktodayAGPL-3.0A3,373Codex, OpenCode
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vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA3,093GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file274k2d agoMITA4,313Codex, OpenCode