GitHub
dependency-inversion-principle
Use when a class creates its own dependencies. Use when instantiating concrete implementations inside a class. Use when told to avoid dependency injection for simplicity.
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GitHub
fail-fast
Use when handling errors. Use when tempted to catch and swallow exceptions. Use when returning default values to hide failures.
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GitHub
deadlock-prevention
Use when acquiring multiple locks. Use when operations wait for each other. Use when system hangs without crashing.
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GitHub
liskov-substitution-principle
Use when creating subclasses or implementing interfaces. Use when tempted to override methods with exceptions or no-ops. Use when inheritance hierarchy feels wrong.
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GitHub
interface-segregation-principle
Use when designing interfaces. Use when implementing interfaces with methods you don't need. Use when forced to implement throw/no-op for interface methods.
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GitHub
you-aint-gonna-need-it
Use when tempted to add features "for later". Use when building "production-ready" systems before needed. Use when adding flexibility that isn't required yet.
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GitHub
exception-hierarchies
Use when creating custom exceptions. Use when error handling feels chaotic. Use when catch blocks are too broad or too specific.
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GitHub
open-closed-principle
Use when adding new functionality to existing code. Use when tempted to add if/else or switch branches. Use when extending behavior of existing classes.
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GitHub
pythonarchitecture
Python application architecture with functional core, effectful shell, DDD, and data modeling. Use when designing application layers, separating pure business logic from IO, defining domain models, implementing...
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GitHub
separation-of-concerns
Use when component does too many things. Use when mixing data fetching, logic, and presentation. Use when code is hard to test.
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GitHub
full-stack-developer
Complete fullstack development mastery covering modern web architectures, automation tools, AI integration, and production deployment practices
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GitHub
node-patterns
Node.js patterns for Express/Fastify, async operations, and streams
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GitHub
react-native
React Native and Expo development patterns and best practices
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GitHub
react-patterns
Modern React patterns including hooks, state management, and performance
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GitHub
django-patterns
Django patterns for models, views, Django REST Framework, and best practices
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GitHub
nextjs-patterns
Next.js App Router patterns, Server Components, and best practices
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GitHub
typescript-strict
TypeScript strict mode patterns and advanced type techniques
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GitHub
lazy-loading
Use when loading all data upfront. Use when initial page load is slow. Use when fetching data that might not be needed.
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GitHub
immutability
Use when modifying objects or arrays. Use when tempted to mutate function parameters. Use when state changes cause unexpected bugs.
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GitHub
law-of-demeter
Use when accessing nested object properties. Use when chaining method calls. Use when reaching through objects to get data.
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GitHub
encapsulation
Use when exposing internal state. Use when making fields public for convenience. Use when external code modifies object internals.
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GitHub
fastapi-patterns
FastAPI patterns with Pydantic, async operations, and dependency injection
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GitHub
error-responses
Use when returning errors from APIs. Use when exposing internal errors. Use when error responses lack structure.
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GitHub
n-plus-one-prevention
Use when fetching related data in loops. Use when seeing multiple queries for one request. Use when database is slow on list endpoints.
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