What is astrodeck AGENTS.md?

A project instruction file for AstroDeck, an Astro.js component library and starter kit for building websites. It tells coding assistants which project rules and files to consult.

Use it when changing AstroDeck pages, components, styles, layouts, or other code that must follow PROJECT.md and the documented project conventions.

It prevents agents from applying the wrong defaults by making project-specific settings take priority over general guidance.

How holger1411/astrodeck configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to holger1411/astrodeck. 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/holger1411/astrodeck/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/holger1411/astrodeck

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/holger1411/astrodeck/agents-md/github.svg)](https://agentmods.dev/instructions/holger1411/astrodeck/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/holger1411/astrodeck/agents-md"><img src="https://agentmods.dev/badge/instructions/holger1411/astrodeck/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/holger1411/astrodeck/agents-md"><img src="https://agentmods.dev/badge/instructions/holger1411/astrodeck/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 7,339 This file is loaded in full into every session.

When invoked 7,339 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.

Model	Per session	Once invoked
Fable 5.1	$0.07339	$0.07339
Opus 5.5	$0.02936	$0.02936
Sonnet 5.5	$0.01468	$0.01468
Haiku 4.5	$0.00734	$0.00734

Measured 2mo ago against content hash 8e8e552c02fc, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

astrodeck 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 · 828 lines

How it starts

The opening of the file, as written. The whole thing — 828 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md - AstroDeck Project Guidelines

Single Source of Truth for AI Coding Assistants This file provides guidance to AI agents (Cursor, GitHub Copilot, Claude Code, Codex, etc.) when working with the AstroDeck codebase.

⚠️ IMPORTANT: Project-Specific Customizations

Before following the guidelines below, ALWAYS check PROJECT.md first.

The PROJECT.md file contains project-specific customizations that override these defaults:

Custom colors, fonts, and design tokens
Brand voice and content guidelines
Project-specific rules and workflows
Business context and goals

Priority Hierarchy:

PROJECT.md (highest) - Your project-specific instructions
AGENTS.md (this file) - AstroDeck defaults and patterns for AI assistants
README.md - Human-readable documentation (installation, deployment, troubleshooting)
Component documentation - Individual component guidelines

When to consult README.md:

README.md is written for humans and provides additional context
Useful for understanding deployment options, installation methods, and user-facing documentation
Contains detailed explanations of features, troubleshooting guides, and community resources
Subordinate to AGENTS.md for AI coding conventions, but valuable for project context

If PROJECT.md says "use vibrant blue for primary color" but this file says "use Astro blue," the PROJECT.md instruction wins.

Project Overview

AstroDeck is an open-source component library and starter kit for building Astro.js websites. It provides pre-built, production-ready sections for landing pages and SaaS websites.

Aspect	Details
Purpose	Help developers ship beautiful websites faster with copy-paste ready components
Target Users	Web developers, SaaS founders, agencies, indie hackers
Repository	https://github.com/holger1411/astrodeck
Live Demo	https://astrodeck.dev

AI-Assisted Development

Read the full file on GitHub · 828 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 Changed · -1 tokens per session 8e8e552c02fc
2mo ago First seen · 828 lines · 7,340 tokens per session scan A dac3326584e7

Subscribe to this mod's changes

astrodeck AGENTS.md is an instructions file published in the GitHub repository holger1411/astrodeck (81 stars, last pushed 2mo ago), licensed MIT. It adds 7,339 tokens to every session, about $0.0294 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.

astrodeck AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
astrodeck AGENTS.mdholger1411/astrodeck	Instructions file	81	2mo ago	MIT	A	7,339	Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	9,719	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 oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

astrodeck: Instructions file for Codex