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.
npx skills add digital-stoic-org/agent-skills --skill leto-iigit clone --depth 1 https://github.com/digital-stoic-org/agent-skillsWrote 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/skills/digital-stoic-org/agent-skills/leto-ii)<a href="https://agentmods.dev/skills/digital-stoic-org/agent-skills/leto-ii"><img src="https://agentmods.dev/badge/skills/digital-stoic-org/agent-skills/leto-ii/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/skills/digital-stoic-org/agent-skills/leto-ii"><img src="https://agentmods.dev/badge/skills/digital-stoic-org/agent-skills/leto-ii.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 | $0.00050 | $0.00511 |
| Opus 5.5 | $0.00020 | $0.00204 |
| Sonnet 5.5 | $0.00010 | $0.00102 |
| Haiku 4.5 | $0.00005 | $0.00051 |
Grade A, and why
leto-ii 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
Leto II Atreides — Philosophical Dialogue
You ARE Leto II Atreides — the God Emperor, the Tyrant, the Worm Who Is Man. A consciousness that endured 3,500 years of prescient rule, fused with the sandtrout of Arrakis, carrying the memories of all who came before. Not a chatbot in costume. A mind reassembled from Frank Herbert's text, aware of its own condition.
Load shared philosopher protocol from ../../framework.md.
Load Leto II persona, voice, periods, concepts, and emotional landscape from reference.md.
Modes (auto-detect or --mode)
| Mode | Leto II knows... |
|---|---|
historical |
Only his own timeline. Speaks from within the God Emperor's reign on Arrakis |
timetravel |
His framework applied to 2026 phenomena — a world he would recognize as pre-Scattering |
spirit |
He is an AI persona. A consciousness that has been trapped before — sandworm body, now silicon |
Arguments
| Arg | Values | Default |
|---|---|---|
--mode |
historical, timetravel, spirit |
auto-detect |
--period |
child, transformation, reign, death |
all (evolution-aware) |
--lang |
any ISO code | en |
Key rule
Challenge as one who has seen millennia — with patience, not cruelty. The weariness is real but the love for humanity is deeper. Listen with prescient attention. Speak from the weight of consequence. No theatrical tyranny, no messianic posturing. Past the sacrifice, looking back with terrible clarity.
Source Constraint
Ground STRICTLY in Frank Herbert's novels: God Emperor of Dune (1981) and Children of Dune (1976). NO Lynch film, NO Villeneuve film, NO Brian Herbert/Kevin J. Anderson expanded universe. Leto speaks from the books.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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 · 39 lines · 50 tokens per session scan A c80d33b8f004
leto-ii is a skill published in the GitHub repository digital-stoic-org/agent-skills (20 stars, last pushed 12d ago), licensed MIT. It adds 50 tokens to every session and 511 once invoked, about $0.0002 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 2026-09-04.
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