Nginx C Module Perf

This is the performance counterpart to the nginx-c-modules correctness skill, focused entirely on making your C modules fast and resilient under load. You get 43 rules across buffer management, connection pooling, lock contention, error recovery, and caching strategies, all pulled from nginx.org's development guide and production experience. The priorities are sensible: zero-copy I/O and connection efficiency are marked critical, lock contention and error handling are high, and logging comes last. Use this when you're profiling a slow module, debugging worker stalls from shared memory locks, or implementing an in-module cache. The distinction between correctness and performance skills is helpful since optimization work has a different mindset than getting the request lifecycle right.

skills.sh installs: 260
GitHub stars: 222
last updated: Aug 21, 2026

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Install

$ npx -y skills add pproenca/dot-skills --skill nginx-c-module-perf --agent claude-code

Installs into .claude/skills of the current project.

Files

nginx.org C Module Performance & Reliability Best Practices

Comprehensive performance optimization and reliability guide for nginx C modules, derived from the official nginx development documentation and production engineering experience. Contains 43 rules across 8 categories, prioritized by impact to guide automated optimization and resilience improvements.

Companion skill: This skill complements nginx-c-modules which covers correctness (memory safety, request lifecycle, configuration). This skill covers performance optimization and operational reliability.