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 zongmin-yu/serenity-skills --skill serenitygit clone --depth 1 https://github.com/zongmin-yu/serenity-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/zongmin-yu/serenity-skills/serenity)<a href="https://agentmods.dev/skills/zongmin-yu/serenity-skills/serenity"><img src="https://agentmods.dev/badge/skills/zongmin-yu/serenity-skills/serenity/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/zongmin-yu/serenity-skills/serenity"><img src="https://agentmods.dev/badge/skills/zongmin-yu/serenity-skills/serenity.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 | $0.00135 | $0.02082 |
| Opus 5 | $0.00068 | $0.01041 |
| Sonnet 5 | $0.00027 | $0.00416 |
| Haiku 4.5 | $0.00014 | $0.00208 |
Grade A, and why
serenity 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 13d 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 — 175 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Serenity Guidelines
AI infrastructure and semiconductor supply chain analysis, distilled from the public posts of Serenity (@aleabitoreddit).
When trillions flow into AI buildout, some tiny company with no substitutes will be the bottleneck. Trace the capex from hyperscalers down through semiconductors, photonics, materials, and feedstock to find it before the market does.
Quick Filter (4 questions)
Run these first. One "No" requires strong justification. Two "No" answers means this is probably not a chokepoint — move on.
| # | Principle | Question | No = Stop |
|---|---|---|---|
| 1 | Forced Demand | Is someone forced to buy this input to ship their product? | No forced buyer = no chokepoint |
| 2 | Size Mismatch | Is the supplier's market cap < 1% of the annual capex it enables? | No mismatch = probably priced in |
| 3 | No Substitute | Is there no production-ready alternative within 24 months? | Substitute in qualification = expiring chokepoint |
| 4 | Outside Voice | Have ≥ 3 independent parties (CEOs, analysts, governments) confirmed the constraint in the last 90 days? | Nobody else sees it = either too early or wrong |
Pass the filter before proceeding to the full process.
8-Step Process
After passing the quick filter, trace the supply chain systematically.
1. Follow the Money
Where is capex flowing? Identify which layer of the technology stack is heating up right now. Look for the largest companies being forced to spend on something they didn't buy last year.
Not every chain starts from capex. Some start from geopolitical events (export controls, trade wars) or policy actions (defense spending, strategic material designations) that force a supply chain to restructure. When an event creates forced demand for a substitute supplier, that is also a valid entry point.
2. Decompose the BOM
Break down the product at that layer into components. Quantify cost share. Which components take the largest portion of the bill of materials?
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.
- 13d ago First seen · 175 lines · 135 tokens per session scan A ca1bdfde9516
serenity is a skill published in the GitHub repository zongmin-yu/serenity-skills (34 stars, last pushed 3mo ago), licensed MIT. It adds 135 tokens to every session and 2,082 once invoked, about $0.0007 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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