claude-code-quickstart: Instructions file for Codex

AGENTS.md

claude-code-quickstart AGENTS.md is an instructions file for Codex, OpenCode from MrNine-666/claude-code-quickstart. It costs 251 tokens per session, scanned A, original, Apache-2.0.

A project guide for Trellis-managed repositories, explaining where development procedures, technical guidelines, tasks, and developer notes are stored.

In plain words
What is it for?
Use it when working in a Trellis project to inspect workflow files, layer-specific rules, active tasks, journals, and available Trellis commands.
Why use it?
It helps coding agents follow the repository’s workflow and find the instructions that apply to the part of the code they are changing.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions subagents; reads ~/.codex paths; mentions Codex.

This is MrNine-666/claude-code-quickstart's own configuration. It tells Codex and OpenCode how to work on claude-code-quickstart 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 claude-code-quickstart configures →

Reuse

Borrowing it

Nothing to install: this file belongs to MrNine-666/claude-code-quickstart. 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/MrNine-666/claude-code-quickstart/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/MrNine-666/claude-code-quickstart

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 claude-code-quickstart AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/mrnine-666/claude-code-quickstart/agents-md/github.svg)](https://agentmods.dev/instructions/mrnine-666/claude-code-quickstart/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/mrnine-666/claude-code-quickstart/agents-md"><img src="https://agentmods.dev/badge/instructions/mrnine-666/claude-code-quickstart/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 claude-code-quickstart AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/mrnine-666/claude-code-quickstart/agents-md"><img src="https://agentmods.dev/badge/instructions/mrnine-666/claude-code-quickstart/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 251 This file is loaded in full into every session.
When invoked 251 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 $0.00251 $0.00251
Opus 5.5 $0.00100 $0.00100
Sonnet 5.5 $0.00050 $0.00050
Haiku 4.5 $0.00025 $0.00025

Measured 1mo ago against content hash 6cacfe99748b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

claude-code-quickstart 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.

Origin

Copies of this mod

2 near-identical copies found in the catalogue:

AGENTS.md · 22 lines

What it actually says

Trellis Instructions

These instructions are for AI assistants working in this project.

This project is managed by Trellis. The working knowledge you need lives under .trellis/:

  • .trellis/workflow.md — development phases, when to create tasks, skill routing
  • .trellis/spec/ — package- and layer-scoped coding guidelines (read before writing code in a given layer)
  • .trellis/workspace/ — per-developer journals and session traces
  • .trellis/tasks/ — active and archived tasks (PRDs, research, jsonl context)

If a Trellis command is available on your platform (e.g. /trellis:finish-work, /trellis:continue), prefer it over manual steps. Not every platform exposes every command.

If you're using Codex or another agent-capable tool, additional project-scoped helpers may live in:

  • .agents/skills/ — reusable Trellis skills
  • .codex/agents/ — optional custom subagents

Managed by Trellis. Edits outside this block are preserved; edits inside may be overwritten by a future trellis update.

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 · 22 lines · 251 tokens per session scan A 6cacfe99748b

Subscribe to this mod's changes

claude-code-quickstart AGENTS.md is an instructions file published in the GitHub repository MrNine-666/claude-code-quickstart (213 stars, last pushed 5d ago), licensed Apache-2.0. It adds 251 tokens to every session, about $0.0010 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.

Related

Other instructions, from other repositories