Awesome-Claude-md

400 opinionated CLAUDE.md templates for every stack.
Stop writing CLAUDE.md files from scratch. Grab one, edit the placeholders, ship better code.

     

Every developer using Claude Code needs a CLAUDE.md. Most throw one together in 20 minutes, then spend the rest of the week wondering why Claude keeps generating barrel files or ignoring their project's conventions.

A CLAUDE.md that says "write clean code" teaches it nothing. These templates fix that.

Quick Start

# 1. Pick a template
cp templates/nextjs/CLAUDE.md ~/your-project/CLAUDE.md

# 2. Replace the [PLACEHOLDERS]
# 3. Done. Claude now knows your stack.

Or browse the full catalog with line counts and key libraries for every template.

Templates

Frontend · Full-Stack · Backend · AI & ML · Database & Messaging · Mobile · Desktop · CLI & Tools · Testing · Cloud & Serverless · DevOps & Infra · Bots & Plugins · Game Dev · Languages · Specialized

> Frontend

Template	Stack	When to use
nextjs	Next.js 14+, App Router, TypeScript	Server components, RSC, full-stack React
react-vite	React 18, Vite, TypeScript	Client-side SPAs, no SSR needed
vue-vite	Vue 3, Vite, Composition API	Vue SPAs with Pinia and Vue Router
sveltekit	SvelteKit 2, Svelte 5 runes	Full-stack Svelte with form actions
svelte5-runes	Svelte 5, SvelteKit 2, Runes	Svelte 5 runes-first reactivity
nuxt	Nuxt 3, Vue 3, Composition API	Vue full-stack with auto-imports
remix	Remix 2, React 18	Nested routes, loaders, progressive enhancement
astro	Astro 4, Content Collections	Content sites, zero JS by default
angular	Angular 17+, Signals	Enterprise SPAs with standalone components
analog-angular	Analog.js, Angular 18, Vite	Angular meta-framework with file-based routing
gatsby	Gatsby 5, GraphQL, MDX	Static sites with rich data layer
qwik	Qwik, Qwik City	Resumable apps, instant load times
solidjs	SolidJS, SolidStart	Fine-grained reactivity, no virtual DOM
preact	Preact, Signals, Vite	Lightweight React alternative (3kb)
lit-components	Lit 3, Web Components	Framework-agnostic custom elements
web-components	Native Web Components, Shadow DOM	Custom elements without framework dependency
eleventy	11ty 3, Nunjucks, WebC	Simple static sites, no client JS
docusaurus	Docusaurus 3, React 18, MDX	Documentation sites with versioning
alpine-js	Alpine.js 3, Tailwind CSS, HTMX	Lightweight client-side interactivity
ember-js	Ember.js 5, Glimmer, Embroider	Convention-driven ambitious web apps
fresh-preact	Deno Fresh 2, Preact, Signals	Islands architecture on Deno
tanstack-start	TanStack Start, React 19, TanStack Router	Type-safe full-stack React with TanStack
htmx-go	HTMX, Go, Templ	Hypermedia-driven, no SPA framework
htmx-django	HTMX 2, Django 5, Python	Server-driven UI with Django templates
htmx-flask	HTMX 2, Flask 3, Jinja2	Lightweight HTMX with Flask
storybook-react	Storybook 8, React 18, CSF3	Component development and documentation
threejs-r3f	React Three Fiber, Drei	3D scenes in React
shadcn-ui	shadcn/ui, Next.js, Tailwind	Component library built on Radix primitives
radix-ui	Radix UI, React, TypeScript	Unstyled accessible UI primitives
tailwind-v4	Tailwind CSS v4, PostCSS	Next-generation CSS-first configuration
chakra-ui	Chakra UI v3, React, Next.js	Next-gen accessible component library
mantine	Mantine v7, React, TypeScript	Modern React components and hooks
daisyui	DaisyUI v4, Tailwind CSS	Semantic component classes for Tailwind
react-aria	React Aria, React Stately	Accessible unstyled UI primitives
css-modules	CSS Modules, React	Scoped CSS for component styling
styled-components	styled-components, React	CSS-in-JS with component-based styles
panda-css	Panda CSS, TypeScript	Type-safe atomic CSS-in-JS
framer-motion	Framer Motion v11, React	Production-ready animation library
react-query	TanStack Query v5, React	Powerful async state management
zustand	Zustand v4, React, TypeScript	Small, fast state management
jotai	Jotai v2, React, TypeScript	Atomic state management for React
redux-toolkit	Redux Toolkit v2, React	Modern Redux with less boilerplate
valtio	Valtio, React, TypeScript	Proxy-based state management
recoil	Recoil, React, TypeScript	Facebook's state management library
xstate	XState v5, React, TypeScript	State machines and statecharts
swr	SWR v2, React, TypeScript	Stale-while-revalidate data fetching
urql	URQL v4, GraphQL, React	Highly customizable GraphQL client
apollo-client	Apollo Client v3, GraphQL	Comprehensive GraphQL state management
relay	Relay, React, GraphQL	Facebook's GraphQL framework
react-hook-form	React Hook Form v7, Zod	Performant flexible forms
formik	Formik v2, React, Yup	Popular form library for React
tanstack-table	TanStack Table v8, React	Headless table UI library
ag-grid	AG Grid v31, React, TypeScript	Feature-rich data grid
storybook	Storybook v8, React/Vue/Svelte	UI component development
testing-library	Testing Library, React	User-centric testing utilities

> Full-Stack

Template	Stack	When to use
t3-stack	tRPC, Next.js, Prisma	End-to-end type safety
saas-fullstack	Next.js, Stripe, Clerk	SaaS with billing, auth, emails
supabase-nextjs	Next.js, Supabase	Postgres + auth + realtime, fast MVPs
clerk-nextjs	Next.js 14+, Clerk v5	Auth, sessions, and organizations
drizzle-nextjs	Next.js 15, Drizzle ORM, PostgreSQL	Type-safe ORM with React Server Components
vercel-ai	Next.js 15, Vercel AI SDK 4	AI-powered apps with streaming
convex-nextjs	Convex, Next.js	Reactive backend, zero infra
redwoodjs	RedwoodJS, GraphQL, Prisma	Opinionated full-stack with Cells
blitzjs	BlitzJS, Prisma, RPC	Full-stack React without API layer
wasp	Wasp, React, Node	Declarative full-stack DSL
meteor	Meteor, React, MongoDB	Realtime apps with DDP pub/sub
shopify-hydrogen	Hydrogen, Remix	Custom Shopify storefronts
payload-cms	Payload CMS 3, Next.js	Headless CMS with block-based layouts
strapi-v5	Strapi v5, PostgreSQL, TypeScript	Headless CMS with Document Service API
directus	Directus 11, PostgreSQL	Data platform and headless CMS
keystone-js	KeystoneJS 6, Prisma, GraphQL	Headless CMS and app framework
medusa-js	Medusa.js 2, MikroORM, PostgreSQL	E-commerce backend framework
pocketbase	PocketBase, Go, SQLite	Backend-in-a-file with realtime
supabase-realtime	Supabase Realtime, PostgreSQL	WebSocket channels and presence

> Backend

Template	Stack	When to use
python-fastapi	FastAPI, SQLAlchemy 2.0, Pydantic v2	Async Python APIs
django	Django 5, DRF, Celery	Batteries-included Python web
flask	Flask, SQLAlchemy, Marshmallow	Lightweight Python APIs
express-typescript	Express, TypeScript, Prisma	Node.js REST APIs
prisma-express	Express 4, Prisma 5, PostgreSQL	Prisma-first Node.js APIs
nestjs	NestJS 10+, TypeScript	Enterprise Node.js with DI
fastify	Fastify, TypeScript, JSON Schema	High-performance Node.js APIs
hono	Hono, TypeScript, Zod OpenAPI	Edge-first APIs (Workers/Bun)
bun-elysia	Bun 1.1+, Elysia.js, TypeBox	Bun-native APIs with full type inference
adonisjs	AdonisJS 6, Lucid ORM	Laravel-like Node.js framework
koa-typescript	Koa, TypeScript, TypeORM	Middleware-composed Node.js APIs
trpc-standalone	tRPC, TypeScript, Zod	End-to-end typesafe APIs (standalone)
deno-oak	Deno 2, Oak 16+, Deno KV	Deno-native APIs with Oak
go-api	Go, Chi, sqlc	Idiomatic Go REST APIs
gin-go	Go, Gin, GORM	Go APIs with Gin framework
fiber-go	Go, Fiber, GORM/sqlc	Express-like Go framework
grpc-go	Go, gRPC, Connect RPC	RPC services with Protobuf
rust-axum	Rust, Axum, SQLx	Rust async web services
actix-web	Rust, Actix-web 4, SQLx	High-performance Rust APIs
spring-boot	Java 21+, Spring Boot 3.2	Enterprise Java APIs
ktor	Kotlin, Ktor, Exposed	Kotlin coroutine-based APIs
scala-play	Scala 3, Play Framework, Slick	Scala web applications
dotnet-api	.NET 8, C# 12, EF Core	.NET Minimal APIs with CQRS
laravel	PHP 8.2+, Laravel 11	PHP full-stack with Eloquent
php-symfony	PHP 8.3+, Symfony 7, Doctrine 3	Enterprise PHP with Symfony
ruby-on-rails	Ruby 3.2+, Rails 7.1+	Convention-over-configuration web
elixir-phoenix	Elixir, Phoenix 1.7+, Ecto	Realtime Elixir with LiveView
swift-vapor	Swift 5.9+, Vapor 4, Fluent ORM	Server-side Swift APIs
graphql-api	Apollo/Yoga, Pothos, Prisma	GraphQL APIs with code-first schema
openapi-codegen	OpenAPI 3.1, openapi-typescript	API-first with generated types
mcp-server-typescript	MCP SDK, TypeScript, Node.js	Model Context Protocol servers
firebase-functions	Cloud Functions v2, Firestore	Serverless Firebase backend
litestar	Litestar v2, Python, Pydantic	Async Python ASGI framework
robyn	Robyn, Python, Rust runtime	High-performance async web framework
quart	Quart, Python, ASGI	Async Flask-like web framework
sanic	Sanic v23+, Python, UVLoop	Async Python web framework
starlette	Starlette, Python, ASGI	Lightweight ASGI framework
falcon	Falcon v4, Python	High-performance API framework
bottle	Bottle, Python	Micro web framework
tornado	Tornado v6.4, Python	Async web framework and server
aiohttp	aiohttp v3.9, Python	Async HTTP client/server
elysia	Elysia v1, Bun, TypeBox	Bun-native type-safe APIs
symfony	Symfony 7, PHP 8.3	Enterprise PHP framework

> AI & ML

Template	Stack	When to use
langchain-python	LangChain, Python	LLM chains, agents, tool calling
rag-pipeline	Embeddings, Vector DB, Python	Retrieval-augmented generation
llm-api	OpenAI/Anthropic SDK, TypeScript	LLM API wrappers with streaming
huggingface	Transformers, PEFT, Datasets	Model fine-tuning and inference
ml-python	PyTorch, MLflow, polars	ML training pipelines
pytorch-lightning	PyTorch 2, Lightning 2	Structured deep learning training
gradio-ml	Gradio 4, Transformers	ML model demo interfaces
streamlit	Streamlit 1.38+, pandas	Data apps and dashboards
mlflow	MLflow 2, scikit-learn/XGBoost	Experiment tracking and model registry
jupyter-data-science	Jupyter, pandas, scikit-learn	Data analysis and exploration
data-pipeline	Airflow/Dagster, dbt, Python	ETL and data orchestration
apache-airflow	Airflow 2.9+, TaskFlow API	Workflow orchestration and scheduling
dagster	Dagster 1.7+, Dagster UI	Software-defined data assets
dbt-project	dbt Core 1.8+, SQLFluff	SQL transformation and modeling
spark-pyspark	Apache Spark 3.5+, PySpark, Delta Lake	Large-scale data processing
polars-python	Polars 1, Python	Fast DataFrame processing (pandas alternative)
llamaindex	LlamaIndex v0.12, Python	Data framework for LLM applications
dspy	DSPy v2, Python	Programming framework for LLMs
vercel-ai-sdk	AI SDK v4, Next.js 15, React	AI-powered streaming text generation
ollama	Ollama, Llama 3, Mistral	Local LLM runner and management
litellm	LiteLLM, Python	Unified API for 100+ LLM providers
vllm	vLLM, Python, CUDA	High-throughput LLM serving
crewai	CrewAI v0.86, Python	Multi-agent AI systems
autogen	AutoGen v0.4, Python	Multi-agent conversation framework
pydantic-ai	PydanticAI, Python	Type-safe agent framework
instructor	Instructor, Python, Pydantic	Structured outputs for LLMs
outlines	Outlines, Python	Guided text generation
anthropic-sdk	Anthropic SDK, TypeScript/Python	Claude 3.5/3 API integration
openai-sdk	OpenAI SDK v4, TypeScript/Python	GPT-4o/GPT-4 API integration

> Database & Messaging

Template	Stack	When to use
mongodb-express	MongoDB 7, Mongoose 8, Express	Document database with Node.js
neo4j-graphql	Neo4j 5, @neo4j/graphql, Apollo	Graph database with GraphQL API
neon-postgres	Neon serverless PostgreSQL, TypeScript	Serverless Postgres with branching
cockroachdb	CockroachDB 24, Go, pgx	Distributed SQL, multi-region
clickhouse-analytics	ClickHouse 24, Python, dbt	Columnar analytics at scale
duckdb-python	DuckDB 1, Python	Embedded analytical SQL engine
redis-python	Redis 7.2+, redis-py 5, Redis Stack	Caching, pub/sub, and data structures
sqlite-rust	Rust, rusqlite, SQLite 3.45+	Embedded SQL in Rust applications
turso-libsql	Turso, libSQL, TypeScript	Edge-distributed SQLite
dynamodb-lambda	DynamoDB, Lambda, AWS SDK v3	Serverless NoSQL on AWS
apache-kafka-java	Kafka 3.7+, Java 21, Kafka Streams	Event streaming and stream processing
rabbitmq-node	RabbitMQ 3.13+, amqplib, Node.js	Message queuing with AMQP
qdrant	Qdrant, Vector DB, Python/TypeScript	Vector similarity search engine
weaviate	Weaviate, GraphQL, Python/JS	AI-native vector search engine
pgvector	pgvector, PostgreSQL, embeddings	Vector search in PostgreSQL
chroma	Chroma, Python/JavaScript	AI-native vector database
milvus	Milvus/Zilliz, Python	High-performance vector database
pinecone	Pinecone, Python/TypeScript	Managed vector similarity search
mariadb	MariaDB 11.x, MySQL compatible	Open-source relational database
planetscale	PlanetScale, Vitess, MySQL	Serverless MySQL platform
fauna	Fauna, FQL, GraphQL	Distributed document-relational database
xata	Xata, PostgreSQL, TypeScript	Serverless data platform

> Mobile

Template	Stack	When to use
flutter	Flutter 3, Dart 3, Riverpod	Cross-platform from single codebase
react-native-expo	Expo SDK 50+, Expo Router	Cross-platform with React Native
expo-router	Expo SDK 52+, Expo Router v4	File-based routing for React Native
ionic-capacitor	Ionic 7+, Capacitor	Web-to-native with native plugins
capacitor-vue	Vue 3, Capacitor 6, Ionic 8	Vue-based mobile apps with Capacitor
nativescript-angular	NativeScript 8, Angular 17+	Native mobile with Angular
swift-ios	SwiftUI, Swift Concurrency	Native iOS apps
jetpack-compose	Kotlin 2, Jetpack Compose, Hilt	Modern Android UI with Compose
kotlin-android	Jetpack Compose, Hilt	Native Android apps
kotlin-multiplatform	KMP, Compose Multiplatform	Shared Kotlin across all platforms
dotnet-maui	.NET MAUI, C#, MVVM	Cross-platform .NET mobile/desktop
maui-blazor	.NET 9 MAUI Blazor Hybrid	Blazor components in native shells

> Desktop

Template	Stack	When to use
electron	Electron 28+, React, Vite	Cross-platform desktop with web tech
tauri	Tauri 2, Rust + React	Lightweight native desktop apps
wails-go	Wails v2, Go, Svelte/React	Go desktop apps with web frontend
compose-desktop	Compose for Desktop, Kotlin	JVM desktop with Compose UI
avalonia-dotnet	Avalonia 11+, C# 12, .NET 9	Cross-platform .NET desktop
swiftui-macos	SwiftUI, SwiftData, AppKit	Native macOS applications

> CLI & Tools

Template	Stack	When to use
cli-node	Node.js, Commander, Chalk	Node.js command-line tools
cli-python	Python, Typer, Rich	Python command-line tools
cli-go	Go, Cobra, Bubble Tea	Go command-line tools and TUIs
rust-cli	Rust, clap, indicatif	Rust command-line tools
puppeteer-node	Puppeteer 22+, TypeScript	Browser automation and scraping
vscode-extension	VS Code API, TypeScript	Editor extensions and language servers
chrome-extension	Chrome MV3, CRXJS	Browser extensions

> Testing

Template	Stack	When to use
playwright	Playwright, TypeScript	Cross-browser E2E testing
cypress	Cypress, TypeScript	E2E and component testing
k6-load-testing	Grafana k6, JavaScript ES6	Load and performance testing
locust-python	Locust 2.29+, Python, gevent	Distributed load testing
vitest	Vitest v2, Vite, TypeScript	Vite-native testing framework
jest	Jest v29, TypeScript	JavaScript testing framework
pytest	pytest v8, Python	Python testing framework
msw	MSW, REST/GraphQL mocking	Mock Service Worker for testing

> Cloud & Serverless

Template	Stack	When to use
aws-lambda-node	AWS Lambda Node.js 20, SAM	Serverless Node.js on AWS
lambda-python	AWS Lambda Python 3.12, SAM	Serverless Python on AWS
aws-step-functions	Step Functions, CDK, Lambda	Serverless workflow orchestration
azure-functions	Azure Functions v4, Cosmos DB	Serverless on Azure
google-cloud-run	Cloud Run, Cloud SQL, Pub/Sub	Containerized serverless on GCP
cloudflare-workers	Workers, Hono, D1	Edge compute on Cloudflare
netlify-functions	Netlify Functions v2, TypeScript	Serverless on Netlify
deno-deploy	Deno Deploy, Deno KV	Edge serverless on Deno
supabase-edge	Supabase Edge Functions, Deno	Serverless on Supabase

> DevOps & Infra

Template	Stack	When to use
docker-compose	Docker, Compose v2	Multi-container local dev and deploy
kubernetes	Kubernetes, Kustomize	Container orchestration manifests
helm-chart	Helm 3, Go templates	Kubernetes package management
argocd	ArgoCD 2.10+, Kustomize	GitOps continuous delivery
crossplane	Crossplane 1.15+, Provider AWS	Control plane infrastructure
skaffold	Skaffold 2.10+, kubectl/Helm	Continuous Kubernetes development
tilt-dev	Tilt 0.33+, Tiltfile (Starlark)	Local Kubernetes dev with live updates
terraform	Terraform 1.6+, HCL	Infrastructure as code
pulumi	Pulumi, TypeScript	IaC with real programming languages
aws-cdk	AWS CDK v2, TypeScript	AWS infrastructure with constructs
github-actions	GitHub Actions, YAML	CI/CD pipelines and automation
dagger-ci	Dagger 0.14+, Go SDK, BuildKit	Programmable CI/CD pipelines
earthly-ci	Earthly 0.8+, Earthfile	Containerized reproducible builds
ansible	Ansible, Jinja2, YAML	Configuration management and provisioning
nix-flake	Nix 2.20+, Nixpkgs, flake-utils	Reproducible dev environments and builds
bazel-java	Bazel 7, Java 21, bzlmod	Hermetic builds for large codebases
prometheus-grafana	Prometheus 2.50+, Grafana 10+	Metrics, dashboards, and alerting
opentelemetry-node	OpenTelemetry JS SDK, OTLP	Distributed tracing and observability
railway	Railway, Docker, Nixpacks	Application hosting platform
flyio	Fly.io, Firecracker, Docker	Global application platform
coolify	Coolify, Docker, Self-hosted	Self-hosted PaaS alternative
kamal	Kamal, Docker, Traefik	Zero-downtime Docker deployments
turborepo	Turborepo v2, pnpm/npm/yarn	Monorepo build system
nx	Nx v18+, TypeScript/JavaScript	Smart monorepo build system
changesets	Changesets, Monorepos	Versioning and changelog tool
pnpm-workspace	pnpm workspaces, Monorepo	Workspace package management
version-pnpm	pnpm, Workspace versioning	Granular workspace version control
vite	Vite v5+, Rollup, esbuild	Next-gen frontend tooling
rollup	Rollup v4, JavaScript bundler	ES module bundler
esbuild	esbuild v0.20+, Go-based	Ultra-fast JavaScript bundler
parcel	Parcel v2, Zero-config	Zero-config bundler

> Bots & Plugins

Template	Stack	When to use
discord-bot	discord.js v14, TypeScript	Discord bots with slash commands
slack-bot	Bolt.js, Block Kit	Slack apps and workflows
telegram-bot	python-telegram-bot v20	Telegram bots with conversations
obsidian-plugin	Obsidian API, TypeScript	Obsidian vault plugins
figma-plugin	Figma Plugin API, TypeScript	Figma design tool plugins
raycast-extension	Raycast API, React	Raycast launcher extensions

> Game Dev

Template	Stack	When to use
unity-csharp	Unity 2022+, C#	Unity game development
godot-gdscript	Godot 4, GDScript	Godot game development
godot-rust	Godot 4.3+, Rust (gdext)	Godot with Rust game logic
unreal-cpp	Unreal Engine 5, C++	AAA game development
bevy-rust	Bevy 0.14+, Rust, bevy_rapier	ECS game engine in Rust
phaser-game	Phaser 3.80+, TypeScript, Vite	2D browser games
pixi-js	PixiJS 8, TypeScript	WebGL/WebGPU 2D rendering
babylon-js	Babylon.js 7, TypeScript	3D WebGL/WebGPU engine
webgpu-wgsl	WebGPU, WGSL, TypeScript	GPU rendering and compute
pygame-python	Pygame 2.5+, Python	Python 2D game development
raylib-c	raylib 5, C17, CMake	Lightweight C game development
love2d-lua	LOVE 11.5+, Lua 5.1	Lua 2D game framework
defold-lua	Defold 1.9+, Lua 5.1	Cross-platform Lua game engine

> Languages

Template	Stack	When to use
clojure-ring	Clojure 1.12, Ring, Compojure	Clojure web apps on JVM
crystal-kemal	Crystal 1.12+, Kemal	Fast compiled web framework
gleam-lustre	Gleam 1, Lustre, BEAM	Type-safe Erlang/BEAM apps
haskell-servant	Haskell GHC 9.6+, Servant	Type-level HTTP APIs in Haskell
julia-project	Julia 1.10+, Pkg	Scientific computing and HPC
nim-web	Nim 2, Jester, Karax	Efficient compiled web apps
ocaml-dream	OCaml 5, Dream, Dune	OCaml web with multicore
r-shiny	R 4.3+, Shiny, golem	Interactive data dashboards
v-lang	V 0.4, vweb	Simple compiled language for web
zig-project	Zig 0.13, build.zig	Systems programming with Zig

> Specialized

Template	Stack	When to use
monorepo	Turborepo, pnpm workspaces	Multi-package repositories
open-source-lib	TypeScript, tsup, Changesets	Publishing npm packages
stripe-integration	Stripe SDK, Webhooks	Payment processing integration
websocket-node	ws/Socket.IO, TypeScript	Realtime WebSocket servers
wasm-rust	Rust, wasm-bindgen, wasm-pack	WebAssembly modules
embedded-rust	Rust no_std, embassy, HAL	Embedded systems and microcontrollers
deno-fresh	Deno, Fresh, Preact	Deno-native web framework
solidity-hardhat	Solidity, Hardhat, Ethers.js	Smart contract development
wordpress-theme	WordPress 6, PHP, Gutenberg	WordPress block themes
better-auth	Better Auth, TypeScript	Framework-agnostic auth library
auth-js	Auth.js v5, Next.js	Authentication for Next.js
lucia-auth	Lucia v3, TypeScript	Auth library for serverless
clerk	Clerk, Next.js/React	Complete user management
supabase-auth	Supabase Auth, PostgreSQL	Open-source authentication
lemon-squeezy	Lemon Squeezy, TypeScript	Merchant of record for SaaS
paddle	Paddle, TypeScript	Payments infrastructure
razorpay	Razorpay, Node.js	Payments for India
cqrs	CQRS, TypeScript/Python	Command Query Responsibility Segregation
event-sourcing	Event Sourcing, TypeScript/Python	State as event stream
hexagonal-architecture	Hexagonal Architecture, TypeScript	Ports and Adapters pattern
ddd	Domain-Driven Design, TypeScript	Bounded contexts, aggregates
feature-flags	Feature Flags, LaunchDarkly	Gradual rollout and A/B testing
rate-limiting	Rate Limiting, Redis	Token bucket and sliding window
webhooks	Webhooks, HMAC	Event delivery mechanism
event-driven	Event-Driven Architecture	Async message processing
mcp-server	MCP Server, TypeScript	Model Context Protocol servers
claude-code	Claude Code, CLAUDE.md	Claude's agentic coding tool

Why this exists

Claude won't know you use named exports, prefer date-fns over moment, or have a no-any policy unless you tell it.

Writing good rules from scratch is tedious — file naming, import ordering, anti-patterns, library choices. Most people skip it. The sharp edges differ per stack too: what Claude gets wrong in Next.js has nothing to do with what it gets wrong in FastAPI.

Every rule in these templates exists because someone shipped code where Claude did the wrong thing without it.

Contributing

New templates and fixes welcome. Read the Contributing Guide before opening a PR.

Star History

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Made by people who got tired of Claude ignoring their coding standards.