agentmods.dev

foxel: Instructions file for Codex

AGENTS.md

foxel AGENTS.md is an instructions file for Codex, OpenCode from elliottdehn/foxel. It costs 3,381 tokens per session, scanned A, original, no licence file.

Project instructions for foxel, a software project associated with elliottdehn. They describe the project, its file map, useful commands, and a required workflow rule.

In plain words
What is it for?
Use them when changing foxel to find relevant files, follow the command cheat sheet, and apply the project's workflow rule.
Why use it?
They give coding agents the local context needed to work on foxel without guessing how its files and workflow are organised.

Instructions file for CodexOpenCode

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

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

not rated 6repo 3mo ago A scan 3,381 tokens no licence
View source ↗ elliottdehn/foxel
Reuse

Borrowing it

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

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 foxel AGENTS.md

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/elliottdehn/foxel/agents-md"><img src="https://agentmods.dev/badge/instructions/elliottdehn/foxel/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 3,381 This file is loaded in full into every session.
When invoked 3,381 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 $0.03381 $0.03381
Opus 5.5 $0.01352 $0.01352
Sonnet 5.5 $0.00676 $0.00676
Haiku 4.5 $0.00338 $0.00338

Measured 2mo ago against content hash 72a2f46ff51a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

foxel 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 · 234 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 · 234 lines · 3,381 tokens per session scan A 72a2f46ff51a

Subscribe to this mod's changes

foxel AGENTS.md is an instructions file published in the GitHub repository elliottdehn/foxel (6 stars, last pushed 3mo ago), with no licence file. It adds 3,381 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 2026-08-31.

Related

foxel AGENTS.md compared with instructions from other repositories

foxel AGENTS.md next to 6 instructions from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
foxel AGENTS.mdelliottdehn/foxelInstructions file63mo agononeA3,381Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA9,719GitHub Copilot
next.js AGENTS.mdvercel/next.jsInstructions file143kyesterdayMITA7,461Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA5,649GitHub Copilot
langchain AGENTS.mdlangchain-ai/langchainInstructions file149ktodayMITA4,680Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA3,093GitHub Copilot
vscode ai-customization.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA1,907GitHub Copilot