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nginx-c-modules

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nginx C module development guidelines based on the official nginx development guide. This skill should be used when writing, reviewing, or refactoring nginx C modules to ensure correct memory management, request lifecycle handling, and event-driven patterns. Triggers on tasks involving nginx module development, ngx_http_module_t, handler/filter/upstream implementation, pool allocation, or nginx configuration directives.

skills/.experimental/nginx-c-modules/SKILL.md

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# nginx.org C Module Development Best Practices

Comprehensive development guide for nginx C modules, derived from the official nginx development documentation and community expertise. Contains 49 rules across 8 categories, prioritized by impact to guide correct module implementation and prevent common crashes, memory leaks, and undefined behavior.

## When to Apply

Reference these guidelines when:
- Writing new nginx C modules (handlers, filters, upstream, load-balancers)
- Implementing configuration directives and merge logic
- Managing memory with nginx pools and shared memory zones
- Handling the HTTP request lifecycle (body reading, subrequests, finalization)
- Working with nginx's event loop, timers, and thread pools

## Rule Categories by Priority