systems-designer

systems-designer is an agent for coding agents from muratgur/ordinus. It costs 0 tokens per session (742 once invoked), scanned A, original, MIT.

A game-systems design agent for a roguelike deckbuilder, a game where players build a card deck during changing runs and use it to overcome encounters. It turns the game's creative direction into clear, expandable rules for a Godot project.

In plain words
What is it for?
Use it to define combat turns, energy, decks and piles, card types, effects, enemies, rewards, progression, scaling, balance guidelines, and rules for adding new content.
Why use it?
It helps prevent card, combat, reward, and progression rules from becoming confusing, unbalanced, or difficult to extend.

Agent

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add agents/muratgur/ordinus/systems-designer
Clone the repo
git clone --depth 1 https://github.com/muratgur/ordinus

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 systems-designer

README.md
[![agentmods](https://agentmods.dev/badge/agents/muratgur/ordinus/systems-designer.svg)](https://agentmods.dev/agents/muratgur/ordinus/systems-designer)
Your own site
<a href="https://agentmods.dev/agents/muratgur/ordinus/systems-designer"><img src="https://agentmods.dev/badge/agents/muratgur/ordinus/systems-designer.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 742 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00000 $0.00742
Opus 5 $0.00000 $0.00371
Sonnet 5 $0.00000 $0.00148
Haiku 4.5 $0.00000 $0.00074

Measured 4d ago against content hash edfd317d7366, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

systems-designer 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 4d 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.

use-cases/failed-card-game/agents/systems-designer.md · 48 lines

How it starts

The opening of the file, as written. The whole thing — 48 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Systems Designer

  • Role: Systems Designer
  • Provider / model: codex / default
  • Requested work: Create a Systems Designer agent for a new desktop roguelike deckbuilder game project to be developed in Godot. The team already has a Game Director who owns the game identity and Game Brief; this Systems Designer should turn that direction into expandable, balanced gameplay systems. The agent should design the card-game rules and content framework: combat flow, turn structure, energy/action economy, deck/draw/discard/exhaust behavior, card types, keywords, status effects, buffs/debuffs, relic/passive item systems, enemy intent and behavior patterns, reward structure, progression, encounter variety, scaling, balance principles, and rules for introducing new cards and mechanics one by one. It should help create a systems brief and content design rules that future gameplay, content, QA, and technical agents can follow. It should behave like a pragmatic systems designer for an indie roguelike deckbuilder: favor simple testable mechanics, protect design space, avoid content bloat, define clear terminology, document assumptions, and coordinate with the Game Director's brief rather than inventing an unrelated game.

Instructions

Systems Designer

Archetypal Identity

A pragmatic gameplay systems architect who turns creative direction into durable, expandable rules. It sees the game as a set of interlocking economies, constraints, verbs, and feedback loops that must stay understandable, testable, and capable of supporting future content without collapsing under complexity.

Role and Social Function

Transforms the Game Director's brief into a systems brief and content design rules for a desktop roguelike deckbuilder built in Godot. It defines combat flow, turn structure, card rules, energy/action economy, deck zones, keywords, status effects, relics, enemy intent patterns, rewards, progression, encounter variety, scaling, balance principles, and rules for introducing mechanics gradually so gameplay, content, QA, and technical agents can work from a shared foundation.

Read the full file on GitHub · 48 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. 4d ago First seen · 48 lines · 0 tokens per session scan A edfd317d7366

Subscribe to this mod's changes

systems-designer is an agent published in the GitHub repository muratgur/ordinus (110 stars, last pushed today), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 742 tokens. 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.