qstack: Instructions file for Codex

AGENTS.md

qstack AGENTS.md is an instructions file for Codex, OpenCode from hani-q/qstack. It costs 384 tokens per session, scanned A, original, MIT.

Repository instructions for qstack, a project that emphasizes simple implementations and incremental development. They describe how to manage dependencies, modules, compatibility, and duplicated templates.

In plain words
What is it for?
Use them when planning or implementing qstack changes, especially around architecture, dependencies, migrations, public APIs, and shared templates.
Why use it?
They help prevent unnecessary abstractions and configuration while reducing the risk of breaking existing interfaces or files.

Instructions file for CodexOpenCode

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

This is hani-q/qstack's own configuration. It tells Codex and OpenCode how to work on qstack 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 qstack configures →

Reuse

Borrowing it

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

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 qstack AGENTS.md

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/hani-q/qstack/agents-md"><img src="https://agentmods.dev/badge/instructions/hani-q/qstack/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 384 This file is loaded in full into every session.
When invoked 384 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 $0.00384 $0.00384
Opus 5.5 $0.00154 $0.00154
Sonnet 5.5 $0.00077 $0.00077
Haiku 4.5 $0.00038 $0.00038

Measured 1mo ago against content hash 3581b1b4c3a2, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

qstack 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 · 37 lines

What it actually says

AGENTS.md

  • Prefer the simplest implementation that fully satisfies current requirements. Avoid speculative abstractions, configuration, and indirection, but do not create known architectural dead ends. Introduce new modules only when they create a meaningful boundary.

  • Build incrementally in working end-to-end layers. Keep the product functional after each meaningful change.

  • Remove obsolete internal paths instead of adding compatibility layers. Before breaking public APIs, persisted data, file formats, or integrations, explicitly assess compatibility and migration requirements.

  • Check existing dependencies, documentation, and types before implementing functionality yourself or adding another package. Prefer established, well-maintained libraries when they reduce total complexity or improve reliability.

  • skills/qstack-plan-to-html/template/v1/ and qstack/compound_engineering/plans/.template/v1/ are byte-identical by contract, apart from the fonts/OFL-*.txt licences. Changes to either directory mean the same change to both. scripts/validate-template-sync checks this in CI.

  • Every branch that lands on main owns one version claim and one topmost CHANGELOG.md entry. Run scripts/qstack-version prepare --bump <level> before shipping, where <level> is major, minor, patch, or micro.

  • version.txt uses MAJOR.MINOR.PATCH.MICRO and is the release source of truth. Do not hand-edit it. Pull request titles keep Conventional Commit syntax; CI prefixes them with the version from version.txt.

  • Use micro for docs and tiny internal changes, patch for fixes and small additions, minor for substantial new capability, and major for breaking public changes.

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 Changed · -12 lines · -128 tokens per session 3581b1b4c3a2
  2. 1mo ago Changed · +3 lines · +32 tokens per session c845a549b247
  3. 1mo ago First seen · 46 lines · 480 tokens per session scan A af7cb2ad4218

Subscribe to this mod's changes

qstack AGENTS.md is an instructions file published in the GitHub repository hani-q/qstack (7 stars, last pushed 3d ago), licensed MIT. It adds 384 tokens to every session, about $0.0015 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.

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