asciiquarium-python: Instructions file for Codex

AGENTS.md

asciiquarium-python AGENTS.md is an instructions file for Codex, OpenCode from MKAbuMattar/asciiquarium-python. It costs 2,226 tokens per session, scanned A, original, GPL-3.0.

Project instructions for the asciiquarium-python codebase, a Python program that displays an aquarium using text characters. They describe its layout and how its two parallel string grids represent coordinates and depth.

In plain words
What is it for?
Use them when working on the asciiquarium-python repository, especially code involving its text grids, coordinates, or depth handling.
Why use it?
They give coding agents the repository-specific conventions needed to understand and change the program safely. The input does not describe any broader user-facing features.

Instructions file for CodexOpenCode

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

This is MKAbuMattar/asciiquarium-python's own configuration. It tells Codex and OpenCode how to work on asciiquarium-python 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 asciiquarium-python configures →

Reuse

Borrowing it

Nothing to install: this file belongs to MKAbuMattar/asciiquarium-python. 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/MKAbuMattar/asciiquarium-python/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/MKAbuMattar/asciiquarium-python

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.

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README.md
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Your own site
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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.

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Your own site · 80×15
<a href="https://agentmods.dev/instructions/mkabumattar/asciiquarium-python/agents-md"><img src="https://agentmods.dev/badge/instructions/mkabumattar/asciiquarium-python/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 2,226 This file is loaded in full into every session.
When invoked 2,226 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 unknown 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 $0.02226 $0.02226
Opus 5.5 $0.00890 $0.00890
Sonnet 5.5 $0.00445 $0.00445
Haiku 4.5 $0.00223 $0.00223

Measured 2mo ago against content hash 2b98c1f7bc29, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

asciiquarium-python 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 · 159 lines

The source is not reproduced here

Licensed GPL-3.0

The repository is licensed GPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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. 2mo ago First seen · 159 lines · 2,226 tokens per session scan A 2b98c1f7bc29

Subscribe to this mod's changes

asciiquarium-python AGENTS.md is an instructions file published in the GitHub repository MKAbuMattar/asciiquarium-python (11 stars, last pushed 3mo ago), licensed GPL-3.0. It adds 2,226 tokens to every session, about $0.0089 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.

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