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 SkillMedev/health-and-longevity --skill longevity-protocolgit clone --depth 1 https://github.com/SkillMedev/health-and-longevityWrote 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/skillmedev/health-and-longevity/longevity-protocol)<a href="https://agentmods.dev/skills/skillmedev/health-and-longevity/longevity-protocol"><img src="https://agentmods.dev/badge/skills/skillmedev/health-and-longevity/longevity-protocol/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/skillmedev/health-and-longevity/longevity-protocol"><img src="https://agentmods.dev/badge/skills/skillmedev/health-and-longevity/longevity-protocol.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 | $0.00158 | $0.01907 |
| Opus 5.5 | $0.00063 | $0.00763 |
| Sonnet 5.5 | $0.00032 | $0.00381 |
| Haiku 4.5 | $0.00016 | $0.00191 |
Grade A, and why
longevity-protocol 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 21d 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.
How it starts
The opening of the file, as written. The whole thing — 93 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Longevity Protocol
The costly mistake in longevity is inversion: obsessing over supplements and biohacks (weak evidence) while sleep, aerobic capacity, strength, and diet (overwhelming evidence) go under-managed. This skill assembles a weekly routine strictly in order of evidence strength and labels every recommendation with its tier, so effort lands where the healthspan return actually is. Healthspan - years in good physical and cognitive function - is the target, not lifespan alone.
Evidence tiers - apply to everything
- Tier 1 (act on these): sleep, exercise (aerobic + strength), dietary pattern, not smoking, social connection. Large, consistent human outcome data.
- Tier 2 (reasonable, weaker data): time-restricted eating, sauna, specific dietary tweaks beyond the core pattern. Plausible mechanisms, mixed or smaller human trials.
- Tier 3 (honest label: mostly unproven for longevity): nearly all supplements marketed for longevity - NAD precursors, resveratrol, and similar. Mechanistic or animal data, little or no human outcome evidence. Never present a Tier 3 item as if it were Tier 1, and never let it displace Tier 1 effort or budget.
Operating procedure
Order matters: pillars are addressed in descending evidence-and-leverage order, and the weekly template is assembled only after every pillar has a concrete dose.
Step 1: Gather inputs
Collect: age and sex; current exercise (type, days, duration); typical sleep hours and consistency; rough dietary pattern; smoking and alcohol; known conditions and medications (conditions mean physician sign-off before the exercise pillars - see Escalation); realistic weekly hours available (default plan needs ~6-7); and what they currently spend on supplements (this often funds the honesty conversation). Label self-reported estimates as estimates.
Step 2: Sleep - the non-negotiable foundation
Target 7-9 hours nightly, with consistency prioritized over duration: a fixed wake time anchors circadian rhythm better than managing bedtime. Core behaviors: no bright screens 30-60 minutes before bed, bedroom at 18-20 °C (65-68 °F), caffeine cut off after 1-2 PM, alcohol limited - even moderate amounts fragment deep sleep. Chronic sleep below 6 hours is associated with accelerated biological aging. For persistent problems, hand off to sleep-optimizer.
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.
- 21d ago Changed · +2 lines · +1 tokens per session 6011e14bf683
- 1mo ago First seen · 91 lines · 157 tokens per session scan A 29d2f3de9295
longevity-protocol is a skill published in the GitHub repository SkillMedev/health-and-longevity (1 stars, last pushed 21d ago), licensed MIT. It adds 158 tokens to every session and 1,907 once invoked, about $0.0006 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 2026-08-31.
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