fusion-skills: Instructions file for Codex

AGENTS.md

fusion-skills AGENTS.md is an instructions file for Codex, OpenCode from equinor/fusion-skills. It costs 339 tokens per session, scanned A, original, MIT.

Repository-specific instructions for coding agents working in the Fusion GitHub repository, a shared library of GitHub Copilot agent skills.

In plain words
What is it for?
Use them when changing skills, scripts, or documentation in that repository, especially to check project conventions, avoid secrets, and prepare reviewable changes.
Why use it?
They tell an agent where to look, how to keep changes small, and how to handle security and unclear requirements safely.

Instructions file for CodexOpenCode

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

This is equinor/fusion-skills's own configuration. It tells Codex and OpenCode how to work on fusion-skills 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 fusion-skills configures →

Reuse

Borrowing it

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

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 fusion-skills AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/equinor/fusion-skills/agents-md.svg)](https://agentmods.dev/instructions/equinor/fusion-skills/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/equinor/fusion-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/equinor/fusion-skills/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 339 This file is loaded in full into every session.
When invoked 339 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 original 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 $0.00339 $0.00339
Opus 5 $0.00169 $0.00169
Sonnet 5 $0.00068 $0.00068
Haiku 4.5 $0.00034 $0.00034

Measured 7d ago against content hash 33af837ebd48, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

fusion-skills 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 7d 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 · 44 lines

What it actually says

AGENTS

Audience: GitHub Copilot / coding agents making changes in this repository.

This repository is a shared catalog of Fusion GitHub Copilot Agent Skills. Treat it like a library: changes should be small, reviewable, and security-first.

Where to look first

  • Consumer overview: README.md
  • Maintainer workflow: CONTRIBUTING.md
  • Security policy: SECURITY.md
  • Script-specific guidance: documentation in the scripts/ directory

Operating principles

  • Optimize for safety, clarity, and maintainability over cleverness.
  • Prefer minimal diffs; avoid unrelated refactors.
  • Follow existing repository conventions.
  • If requirements are ambiguous, ask targeted questions.

Practical checklist

  • Keep changes scoped to the request.
  • Avoid introducing new global governance unless explicitly requested.
  • Ensure Markdown docs render correctly on GitHub.

Security baseline

  • Never request, store, or print secrets.
  • Redact sensitive data in examples/logs.
  • Prefer read-only operations by default.
  • Avoid risky automation patterns (for example remote-script execution).

Skills changes

When creating or editing skills, follow CONTRIBUTING.md and .github/copilot-instructions.md. For local skill discovery in this repository, search skills/ first and include both skills/ and skills/.experimental/ in local .agents/skills lookup paths for this workspace.

Custom instruction files

  • Repository-wide Copilot instructions: .github/copilot-instructions.md
  • Path-specific instructions: .github/instructions/*.instructions.md
  • Agent instructions: nearest AGENTS.md in directory tree takes precedence.
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. 7d ago First seen · 44 lines · 339 tokens per session scan A 33af837ebd48

Subscribe to this mod's changes

fusion-skills AGENTS.md is an instructions file published in the GitHub repository equinor/fusion-skills (1 stars, last pushed 5d ago), licensed MIT. It adds 339 tokens to every session, about $0.0017 per session on Opus 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.

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