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 anhe2021212-spec/Turritopsis --skill turritopsis-persistent-agent-runtimegit clone --depth 1 https://github.com/anhe2021212-spec/TurritopsisWrote 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/anhe2021212-spec/turritopsis/turritopsis-persistent-agent-runtime)<a href="https://agentmods.dev/skills/anhe2021212-spec/turritopsis/turritopsis-persistent-agent-runtime"><img src="https://agentmods.dev/badge/skills/anhe2021212-spec/turritopsis/turritopsis-persistent-agent-runtime/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/anhe2021212-spec/turritopsis/turritopsis-persistent-agent-runtime"><img src="https://agentmods.dev/badge/skills/anhe2021212-spec/turritopsis/turritopsis-persistent-agent-runtime.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 | $0.00082 | $0.00275 |
| Opus 5 | $0.00041 | $0.00138 |
| Sonnet 5 | $0.00016 | $0.00055 |
| Haiku 4.5 | $0.00008 | $0.00028 |
Grade A, and why
turritopsis-persistent-agent-runtime 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 12d 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
Turritopsis Persistent Agent Runtime
Map the Agent's operating body without confusing it with personality or memory.
- Use
$turritopsis-onboardingfor local scanning and validated skeleton application. - Read stage-suite.md.
- Identify the live runtime authority before trusting configuration, documentation, a local clone, or a review mirror.
- Separate model session, process, relay, channel, scheduler, tool layer, queue, and durable state by responsibility.
- Protect identity or context continuity with an explicit boundary; do not hide session replacement inside a generic restart procedure.
- Define health in layers: process, transport, channel, tool path, and end-to-end function.
- Record degraded or offline state as unknown where evidence is unavailable; do not invent a failure.
- Use fixture.json as a fictional quality example only.
What ships with it
3 files 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.
- 12d ago First seen · 18 lines · 82 tokens per session scan A d0215dbade60
turritopsis-persistent-agent-runtime is a skill published in the GitHub repository anhe2021212-spec/Turritopsis (13 stars, last pushed 17d ago), licensed MIT. It adds 82 tokens to every session and 275 once invoked, about $0.0004 per session on Opus 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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