nginx-c-module-design
nginx.org C Module Directive Design Best Practices
Comprehensive directive design guide for nginx C module authors, focused on creating clear, consistent, and admin-friendly configuration interfaces. Contains 46 rules across 8 categories, prioritized by impact to guide decisions about what to expose, how to name it, and how to evolve it safely.
When to Apply
Reference these guidelines when:
- Deciding which values to expose as directives vs hardcode
- Naming new directives and choosing argument types
- Selecting scope placement (http, server, location)
- Setting default values and validation behavior
- Designing nginx variables for runtime data
- Deprecating or renaming existing directives
Companion Skills
This skill focuses on design decisions (the "what" and "why"). For implementation mechanics, see:
- nginx-c-modules — C implementation: memory pools, request lifecycle, config parsing, handlers, filters
- nginx-c-perf — Performance: buffers, connections, locks, caching, timeouts
More from pproenca/dot-skills
zod
Zod schema validation best practices for type safety, parsing, and error handling. This skill should be used when defining z.object schemas, using z.string validations, safeParse, or z.infer. This skill does NOT cover React Hook Form integration patterns (use react-hook-form skill) or OpenAPI client generation (use orval skill).
2.4Kclean-architecture
Clean Architecture principles and best practices from Robert C. Martin's book. This skill should be used when designing software systems, reviewing code structure, or refactoring applications to achieve better separation of concerns. Triggers on tasks involving layers, boundaries, dependency direction, entities, use cases, or system architecture.
1.4Kemilkowal-animations
Emil Kowalski's animation best practices for web interfaces. Use when writing, reviewing, or implementing animations in React, CSS, or Framer Motion. Triggers on tasks involving transitions, easing, gestures, toasts, drawers, or motion.
967vitest
Vitest testing framework patterns for test setup, async testing, mocking with vi.*, snapshots, and test performance (formerly test-vitest). This skill should be used when writing or debugging Vitest tests. This skill does NOT cover TDD methodology (use test-tdd skill), API mocking with MSW (use test-msw skill), or Jest-specific APIs.
930react-hook-form
React Hook Form performance optimization for client-side form validation using useForm, useWatch, useController, and useFieldArray. This skill should be used when building client-side controlled forms with React Hook Form library. This skill does NOT cover React 19 Server Actions, useActionState, or server-side form handling (use react-19 skill for those).
890typescript
This skill should be used when the user asks to "optimize TypeScript performance", "speed up tsc compilation", "configure tsconfig.json", "fix type errors", "improve async patterns", or encounters TS errors (TS2322, TS2339, "is not assignable to"). Also triggers on .ts, .tsx, .d.ts file work involving type definitions, module organization, or memory management. Does NOT cover TypeScript basics, framework-specific patterns, or testing.
850