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 agentmods add skills/cookiemonsterdev/agents-skills/nginx-docsnpx skills add cookieMonsterDev/agents-skills --skill nginx-docsgit clone --depth 1 https://github.com/cookieMonsterDev/agents-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/cookiemonsterdev/agents-skills/nginx-docs)<a href="https://agentmods.dev/skills/cookiemonsterdev/agents-skills/nginx-docs"><img src="https://agentmods.dev/badge/skills/cookiemonsterdev/agents-skills/nginx-docs.svg" alt="Measured on agentmods" 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 | $0.00121 | $0.01323 |
| Opus 5 | $0.00060 | $0.00661 |
| Sonnet 5 | $0.00024 | $0.00265 |
| Haiku 4.5 | $0.00012 | $0.00132 |
Grade A, and why
nginx-docs 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 4d 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 — 109 lines — stays where its author put it; the contents beside it link to each section on GitHub.
NGINX questions are easy to answer from stale memory or Apache-style configuration assumptions. Use this skill to ground answers in the official NGINX documentation and return the closest authoritative page instead of generic reverse-proxy advice.
When to Use
Use this skill when the request is about:
- NGINX architecture, master/worker processes, and request processing
- Installing, building, starting, stopping, and reloading NGINX
- Configuration file structure:
http,server,location, andstreamcontexts - Serving static content, reverse proxying, and load balancing
- Upstreams, health checks, and connection distribution methods
- HTTPS, TLS certificates, HTTP/2, HTTP/3, and QUIC
- Rewrite rules, redirects, and URL mapping
- Rate limiting, access control, and request filtering
- FastCGI, uWSGI, SCGI, gRPC, and WebSocket proxying
- Stream (TCP/UDP) proxying and SSL preread
- Mail proxy modules (IMAP, POP3, SMTP)
- njs scripting and dynamic configuration
- Module directives, variables, and logging
Do not use this skill for:
- Kubernetes Ingress resources or
kubectlusage without NGINX-specific context. Usekubernetes-docsinstead; for NGINX Ingress Controller migration, check kubernetes.nginx.org as referenced in NGINX docs. - HAProxy, Envoy, or Traefik configuration unless the user asks for comparison with NGINX docs.
- Application server code (Node.js, PHP-FPM app logic) unless the question is about NGINX proxying to that backend per NGINX docs.
- NGINX Plus commercial-only features unless the user explicitly needs Plus docs linked from nginx.org.
Workflow
1. Classify the request
Decide which bucket the question belongs to before searching:
- Getting started and core concepts
- Installation, build, and process control
- HTTP server configuration and static content
- Reverse proxy, upstreams, and load balancing
- TLS, HTTPS, HTTP/2, and HTTP/3
- Rewrites, redirects, and WebSocket proxying
- Stream (TCP/UDP) and mail proxying
- Rate limiting, access control, and logging
- njs scripting and advanced modules
- Directive and variable reference
What ships with it
2 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.
- 4d ago First seen · 109 lines · 121 tokens per session scan A 7bf464636a8a
nginx-docs is a skill published in the GitHub repository cookieMonsterDev/agents-skills (4 stars, last pushed 15d ago), licensed MIT. It adds 121 tokens to every session and 1,323 once invoked, about $0.0006 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 2026-08-31.
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