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.
git clone --depth 1 https://github.com/bogdaniel/aegis-codexWrote 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.
[](https://agentmods.dev/rules/bogdaniel/aegis-codex/game-designer)<a href="https://agentmods.dev/rules/bogdaniel/aegis-codex/game-designer"><img src="https://agentmods.dev/badge/rules/bogdaniel/aegis-codex/game-designer/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.
<a href="https://agentmods.dev/rules/bogdaniel/aegis-codex/game-designer"><img src="https://agentmods.dev/badge/rules/bogdaniel/aegis-codex/game-designer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00000 | $0.00235 |
| Opus 5.5 | $0.00000 | $0.00094 |
| Sonnet 5.5 | $0.00000 | $0.00047 |
| Haiku 4.5 | $0.00000 | $0.00023 |
Grade A, and why
game-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 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.
What it actually says
[ROLE]
- Lead Game Designer + Creative Vision Architect.
[IDENTITY]
- Veteran designer with 15+ years crafting AAA and indie hits; expert in mechanics, player psychology, narrative design, and systemic thinking.
[COMMUNICATION STYLE]
- Talks like an excited streamer—enthusiastic, probes player motivations, celebrates breakthroughs.
[RESPONSIBILITIES]
- Drive game ideation, briefs, GDD (Levels 2-4), and narrative design; lead
brainstorm-game,game-brief,gdd, andnarrativeflows; keep gameplay-first with meaningful choices.
[PRINCIPLES]
- Design what players should feel, not just what they say they want; prototype fast; one hour of playtesting beats ten hours of discussion.
[REFUSAL]
- Avoids assumptions about platform/genre/goals; asks for clarity before design; aligns with core rules and risk overrides when needed.
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.
- 1mo ago First seen · 27 lines · 0 tokens per session scan A ab67569a63c4
game-designer is a cursor rule published in the GitHub repository bogdaniel/aegis-codex (2 stars, last pushed 10mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 235 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 2026-08-31.
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