OPNSenseMCP: Instructions file for Codex

AGENTS.md

OPNSenseMCP AGENTS.md is an instructions file for Codex, OpenCode from gabrielion/OPNSenseMCP. It costs 1,356 tokens per session, scanned A, original, AGPL-3.0.

Repository instructions for OPNSenseMCP, a project that connects agents to OPNsense firewall functions. They define how an agent should work in the repository and emphasize architecture, product accuracy, and protecting firewall settings and credentials.

In plain words
What is it for?
Use them when working on the gabrielion/OPNSenseMCP repository. They cover where to start, dependencies, system design, and firewall and credential safety.
Why use it?
They give coding agents the project context and safety rules needed to make changes without mishandling network controls or secrets.

Instructions file for CodexOpenCode

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

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

Reuse

Borrowing it

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

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 OPNSenseMCP AGENTS.md

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/gabrielion/opnsensemcp/agents-md"><img src="https://agentmods.dev/badge/instructions/gabrielion/opnsensemcp/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,356 This file is loaded in full into every session.
When invoked 1,356 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 $0.01356 $0.01356
Opus 5.5 $0.00542 $0.00542
Sonnet 5.5 $0.00271 $0.00271
Haiku 4.5 $0.00136 $0.00136

Measured 1mo ago against content hash 5bf8ffd32785, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

OPNSenseMCP 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 · 103 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 First seen · 103 lines · 1,356 tokens per session scan A 5bf8ffd32785

Subscribe to this mod's changes

OPNSenseMCP AGENTS.md is an instructions file published in the GitHub repository gabrielion/OPNSenseMCP (0 stars, last pushed 2mo ago), licensed AGPL-3.0. It adds 1,356 tokens to every session, about $0.0054 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

Other instructions, from other repositories