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 kevinaimonster/skill-hub --skill nginx-configgit clone --depth 1 https://github.com/kevinaimonster/skill-hubWrote 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/kevinaimonster/skill-hub/nginx-config)<a href="https://agentmods.dev/skills/kevinaimonster/skill-hub/nginx-config"><img src="https://agentmods.dev/badge/skills/kevinaimonster/skill-hub/nginx-config/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/kevinaimonster/skill-hub/nginx-config"><img src="https://agentmods.dev/badge/skills/kevinaimonster/skill-hub/nginx-config.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 | $0.00167 | $0.02468 |
| Opus 5 | $0.00084 | $0.01234 |
| Sonnet 5 | $0.00033 | $0.00494 |
| Haiku 4.5 | $0.00017 | $0.00247 |
Grade D, and why
nginx-config scanned grade D with 2 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 8d 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.
Hidden instructionshighPrompt injection
Directives inside HTML comments, invisible characters or bidirectional overrides are read by the model and not by the person reviewing the file.
``` ### 逐行解释 1. `listen 80` — 监听 HTTP 80 端口 2. `return 301 https://...` — 所有 HTTP 请求 301 重定向到 HTTPS 3. `listen 443 ssl http2` — 监听 HTTPS 443 端口，启用 HTTP/2 4. [继续解释每个重要指令...] ### 部署步骤 ```bash # 1. 创建配置文件 sudo nano /etc/n Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
sudo nano /etc/nginx/sites-available/example.com The source is not reproduced here
No licence file
A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.
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.
- 8d ago First seen · 302 lines · 167 tokens per session scan D 8c04c05f1f05
nginx-config is a skill published in the GitHub repository kevinaimonster/skill-hub (3 stars, last pushed 5mo ago), with no licence file. It adds 167 tokens to every session and 2,468 once invoked, about $0.0008 per session on Opus 5. A static security scan graded it D with 2 findings (hidden instructions, asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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