What is hassio-addons AGENTS.md?

A set of instructions for developing Home Assistant add-ons for Hyperion.NG, OpenCode, and OpenChamber. Home Assistant add-ons are packaged services that run inside a Home Assistant installation.

Building the add-ons, checking their configuration and container setup, running the available build and smoke-test commands, and validating repository changes.

It tells an agent where each add-on's configuration, container definition, startup script, and build files are located, despite the repository having no dedicated lint or test framework.

How bradsjm/hassio-addons configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to bradsjm/hassio-addons. 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/bradsjm/hassio-addons/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/bradsjm/hassio-addons

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/bradsjm/hassio-addons/agents-md/github.svg)](https://agentmods.dev/instructions/bradsjm/hassio-addons/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/bradsjm/hassio-addons/agents-md"><img src="https://agentmods.dev/badge/instructions/bradsjm/hassio-addons/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/bradsjm/hassio-addons/agents-md"><img src="https://agentmods.dev/badge/instructions/bradsjm/hassio-addons/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 1,543 This file is loaded in full into every session.

When invoked 1,543 The same file — it is already loaded in full.

Security scan A 1 finding. 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.

Model	Per session	Once invoked
Fable 5.1	$0.01543	$0.01543
Opus 5.5	$0.00617	$0.00617
Sonnet 5.5	$0.00309	$0.00309
Haiku 4.5	$0.00154	$0.00154

Measured 2mo ago against content hash a50f098a693c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

hassio-addons AGENTS.md scanned grade A with 1 finding 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- Prefer existing tools: `curl`, `jq`, `tar`, `gzip`.

AGENTS.md · 166 lines

How it starts

The opening of the file, as written. The whole thing — 166 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

This repository contains Home Assistant add-ons for Hyperion.NG, OpenCode, and OpenChamber. Use this file as the primary guide for agentic coding work here.

Repo Overview

Add-on paths: addon-hyperion-ng/, addon-opencode/, addon-openchamber/
Core metadata: repository.json
Hyperion config: addon-hyperion-ng/config.yaml
Hyperion container definition: addon-hyperion-ng/Dockerfile
Hyperion runtime entrypoint: addon-hyperion-ng/run.sh
OpenCode config: addon-opencode/config.yaml
OpenCode build metadata: addon-opencode/build.yaml
OpenCode container definition: addon-opencode/Dockerfile
OpenCode runtime entrypoint: addon-opencode/rootfs/etc/services.d/opencode/run
OpenChamber config: addon-openchamber/config.yaml
OpenChamber build metadata: addon-openchamber/build.yaml
OpenChamber container definition: addon-openchamber/Dockerfile
OpenChamber runtime entrypoint: addon-openchamber/rootfs/etc/services.d/openchamber/run
Helper scripts: addon-hyperion-ng/download-hyperion.sh, .github/scripts/*

Build / Lint / Test Commands

There are no explicit lint or test frameworks in this repo. Use the scripts below for validation and smoke testing.

Build (local or CI-like)

Build the Hyperion image for amd64: docker buildx build --pull --platform linux/amd64 --build-arg BUILD_VERSION=2.2.1 --build-arg BUILD_ARCH=amd64 --load -t local/addon-hyperion-ng:2.2.1-amd64 addon-hyperion-ng
Validate the Hyperion aarch64 build: docker buildx build --pull --platform linux/arm64 --build-arg BUILD_VERSION=2.2.1 --build-arg BUILD_ARCH=aarch64 --output type=cacheonly addon-hyperion-ng
Build OpenCode add-on image for a single architecture: ./.github/scripts/build-opencode.sh amd64
Build all OpenCode architectures: ./.github/scripts/build-opencode.sh all
Build OpenChamber add-on image for a single architecture: ./.github/scripts/build-openchamber.sh amd64
Build all OpenChamber architectures: ./.github/scripts/build-openchamber.sh all

Read the full file on GitHub · 166 lines

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.

2mo ago First seen · 166 lines · 1,543 tokens per session scan A a50f098a693c

Subscribe to this mod's changes

hassio-addons AGENTS.md is an instructions file published in the GitHub repository bradsjm/hassio-addons (46 stars, last pushed 4mo ago), licensed MIT. It adds 1,543 tokens to every session, about $0.0062 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

addons home-assistant

hassio-addons AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
hassio-addons AGENTS.mdbradsjm/hassio-addons	Instructions file	46	4mo ago	MIT	A	1,543	Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	9,719	GitHub Copilot
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	5,516	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	today	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	today	MIT	A	4,680	Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	3,093	GitHub Copilot
vscode model-prompts.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	2,022	GitHub Copilot

hassio-addons: Instructions file for Codex