catatz: Instructions file for Codex

AGENTS.md

catatz AGENTS.md is an instructions file for Codex, OpenCode from kupzed/catatz. It costs 3,483 tokens per session, scanned A, original, MIT.

Repository instructions for CatatZ, a financial record-keeping web app built with Next.js, Supabase, server actions, and progressive web app features.

In plain words
What is it for?
Use them when changing CatatZ's finance features, frontend screens, database migrations, documentation, or visual design.
Why use it?
They tell coding agents which files and documents define the project's behavior, design, migrations, and development rules.

Instructions file for CodexOpenCode

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

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

Reuse

Borrowing it

Nothing to install: this file belongs to kupzed/catatz. 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/kupzed/catatz/master/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/kupzed/catatz

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 catatz AGENTS.md

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/kupzed/catatz/agents-md"><img src="https://agentmods.dev/badge/instructions/kupzed/catatz/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 3,483 This file is loaded in full into every session.
When invoked 3,483 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 $0.03483 $0.03483
Opus 5.5 $0.01393 $0.01393
Sonnet 5.5 $0.00697 $0.00697
Haiku 4.5 $0.00348 $0.00348

Measured 7d ago against content hash 6a7c9b06aefe, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

catatz 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 7d 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 · 239 lines

How it starts

The opening of the file, as written. The whole thing — 239 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CatatZ - Codex Operating Instructions

Origin

CatatZ adalah aplikasi pencatatan keuangan berbasis Next.js 16 App Router, Supabase, Server Actions, dan PWA Serwist. File ini adalah instruksi repository-level untuk agent saat bekerja dari root repository CatatZ.

Instruksi detail tetap berada di docs/ai-development-rules.md. Anggap file ini sebagai operating manual singkat yang mengikat Codex agar setiap task selesai dengan perubahan yang rapi, dokumentasi yang sinkron, validasi yang jujur, dan suggested commit message yang teknis.

Production Status & Mandate

STATUS PROJECT: PRODUCTION (LIVE)

CatatZ adalah aplikasi pencatatan keuangan pribadi yang sudah aktif di tahap production (live). Aplikasi ini melayani pencatatan data finansial riil pengguna.

Setiap model LLM dan AI agent (Codex, Claude, Gemini, Antigravity, dsb.) yang bekerja pada repository ini WAJIB memperlakukan codebase ini sebagai sistem production-grade:

  1. Zero-Destructive / Safe Changes: Codebase ini bukan sandbox, draft, atau prototype. Dilarang melakukan operasi destruktif, menghapus/mengubah struktur database sembarangan, mereset database, atau mengubah migration SQL lama (src/migrations/001-*.sql s/d 014-*.sql) yang sudah berjalan di production. Perubahan schema baru WAJIB berupa migration baru yang additive dan backward-compatible.
  2. Financial Data Integrity: Perhitungan saldo rekening, transaksi, cicilan hutang/piutang, dan koreksi saldo berdampak langsung pada saldo uang riil pengguna. Database trigger dan invariant perhitungan saldo wajib dipatuhi tanpa kompromi.
  3. Backward Compatibility: Jangan mengubah routing yang ada (/transactions, /wallets, /reports, /debts, /categories, /settings), Server Action signatures, auth cookie mechanisms, atau RLS policies tanpa backward compatibility.
  4. Production Security Mandate: Jaga RLS Supabase di setiap query/tabel, pastikan secret (AI_API_KEY, credential) tetap server-only, cookie auth selalu secure: environment.isProduction, dan sanitasi seluruh input user.
  5. Production Build & Verification Gate: PWA build harus tetap memakai next build --webpack untuk Serwist. Setiap task WAJIB divalidasi dengan npm run verify:quick (lint, typecheck, unit test) dan memastikan tidak ada regresi sebelum menyatakan task selesai.

Read the full file on GitHub · 239 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.

  1. 7d ago Changed · +11 lines · +191 tokens per session 6a7c9b06aefe
  2. 8d ago Changed · -5 tokens per session d9f1ceb1e530
  3. 10d ago Changed · +16 lines · +483 tokens per session 0b251f613f65
  4. 1mo ago First seen · 212 lines · 2,814 tokens per session scan A dd15283fa8d3

Subscribe to this mod's changes

catatz AGENTS.md is an instructions file published in the GitHub repository kupzed/catatz (34 stars, last pushed yesterday), licensed MIT. It adds 3,483 tokens to every session, about $0.0139 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 2026-09-01.

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