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 0xDarkMatter/claude-mods --skill nginx-opsgit clone --depth 1 https://github.com/0xDarkMatter/claude-modsWrote 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/0xdarkmatter/claude-mods/nginx-ops)<a href="https://agentmods.dev/skills/0xdarkmatter/claude-mods/nginx-ops"><img src="https://agentmods.dev/badge/skills/0xdarkmatter/claude-mods/nginx-ops.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 5.1 | $0.00070 | $0.04061 |
| Opus 5 | $0.00035 | $0.02031 |
| Sonnet 5 | $0.00014 | $0.00812 |
| Haiku 4.5 | $0.00007 | $0.00406 |
Grade B, and why
nginx-ops scanned grade B with 1 finding 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.
Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
sudo apt install certbot python3-certbot-nginx # Debian/Ubuntu How it starts
The opening of the file, as written. The whole thing — 473 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Nginx Operations
Comprehensive Nginx configuration, reverse proxy patterns, SSL/TLS hardening, load balancing strategies, and performance optimization for production deployments.
Configuration Architecture Quick Reference
nginx.conf (main context)
├── worker_processes auto;
├── worker_rlimit_nofile 65535;
│
├── events { # Connection handling
│ ├── worker_connections 4096;
│ └── multi_accept on;
│ }
│
├── http { # HTTP server settings
│ ├── include mime.types;
│ ├── default_type application/octet-stream;
│ ├── sendfile on;
│ ├── gzip on;
│ │
│ ├── upstream backend { # Load balancing pool
│ │ └── server 127.0.0.1:3000;
│ │ }
│ │
│ ├── server { # Virtual host
│ │ ├── listen 443 ssl;
│ │ ├── server_name example.com;
│ │ │
│ │ ├── location / { # Request routing
│ │ │ └── proxy_pass http://backend;
│ │ │ }
│ │ │
│ │ └── location /static/ {
│ │ └── root /var/www;
│ │ }
│ │ }
│ │
│ └── include /etc/nginx/conf.d/*.conf;
│ }
│
└── stream { # TCP/UDP proxying (optional)
└── server { ... }
}
Directive Inheritance Rules
| Rule | Behavior | Example |
|---|---|---|
| Inherit down | Child blocks inherit parent directives | gzip on; in http applies to all server blocks |
| Override | Child directive overrides parent | gzip off; in location overrides http-level gzip on; |
| Array directives | NOT inherited - must be redeclared | proxy_set_header in location replaces ALL headers from server |
| No upward | Inner blocks never affect outer | location-level settings don't affect server |
Critical: Array-type directives (proxy_set_header, add_header, proxy_hide_header) are completely replaced when redefined in a child block, not merged. If you set one proxy_set_header in a location, you must redeclare ALL of them.
What ships with it
5 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.
- 8d ago First seen · 473 lines · 70 tokens per session scan B 358bf023563e
nginx-ops is a skill published in the GitHub repository 0xDarkMatter/claude-mods (33 stars, last pushed 15d ago), licensed MIT. It adds 70 tokens to every session and 4,061 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
thinking-theory-of-constraints
When throughput or latency is pipeline-limited, identify the single binding constraint and exploit, subordinate, elevate, then recheck—ignore non-constraints.
Vizra ADK Memory System
Implement persistent memory, session context, and vector memory (RAG) for AI agents.
foundation-models
On-device LLM integration using Apple's Foundation Models framework. Use when implementing AI text generation, structured output, or tool calling.
analytics-interpretation
Interpret app metrics and make data-driven decisions. Covers DAU/MAU, retention, LTV, ARPU, App Store Connect analytics, AARRR funnel analysis, cohort analysis, and diagnostic decision trees. Use when user wants to understand their metrics, diagnose problems, or build a data-driven growth plan.
app-namer
Turn an app idea into validated, App-Store-ready name candidates. Use when the user says "name my app", "what should I call it", "app name ideas", "help me name this app", "is this name available", or needs to pick a brandable, ownable name before reserving it in App Store Connect.
in-app-events
Generates In-App Event metadata templates for App Store Connect — event names, descriptions, badge types, image specs, and deep link configuration. Use when creating events for App Store visibility, engagement campaigns, or seasonal promotions.