Promptheus / rules · Free · CC0 · No sign-up

Rules for your AI coding agent.

Production-grade AGENTS.md, CLAUDE.md and .cursorrules for every stack. Drop one file in your repo and Cursor, Claude Code, Copilot & Windsurf instantly code to your conventions — right versions, right patterns, no legacy. No bullshit.

Browse 53 rule sets How it works

01

Pick your stack

Next.js, FastAPI, Go, Rust… or a workflow like TDD or security. Every rule set is written by a senior engineer for that exact stack.

02

Choose the format

The same rules as AGENTS.md, CLAUDE.md, .cursor/rules, .windsurfrules or Copilot instructions — copy or download in one click.

03

Drop it in your repo

Commit the file at the root. Cursor, Claude Code, Copilot and Windsurf read it automatically and code to your conventions.

One rule set · five formats

AGENTS.mdrepo root
CLAUDE.mdrepo root (Claude Code)
.cursor/rules/your-stack.mdcCursor
.windsurfrulesrepo root (Windsurf)
.github/copilot-instructions.mdGitHub Copilot

Frameworks17

Full-stack app conventions — routing, data, rendering, the works.

Next.js 16 · React 19 · TypeScript 6 · Tailwind 4Next.js + TypeScriptApp Router, Server Components and Server Actions — typed, fast, no legacy patterns.nextjsreacttypescript React 19.2 · Vite 8.1 · TypeScript 6.0React + Vite + TypeScriptModern SPA — function components, hooks and TanStack Query, no class-era habits.reactvitetypescript Node.js 24 LTS · Fastify 5.9 · TypeScript 6.0 · Zod 4Node.js APIREST APIs done right — validation, typed errors and a clean layered architecture.nodeapitypescript Python 3.14 · FastAPI 0.139 · Pydantic 2.13 · SQLAlchemy 2.0Python + FastAPIAsync APIs with Pydantic v2, SQLAlchemy 2.0 and disciplined layering.pythonfastapipydantic Python 3.14 · Django 6.0 · DRF 3.17 · psycopg 3DjangoFat models, thin views, DRF serializers — the Django way, enforced.pythondjangodrf PHP 8.5 · Laravel 13 · EloquentLaravelEloquent, form requests and a service layer — modern, testable Laravel.phplaraveleloquent Vue 3.5 · Nuxt 4.4 · TypeScript 6.0 · Pinia 3Vue 3 + NuxtComposition API, script setup and Nuxt 3 — typed, SSR-ready, no Options API.vuenuxttypescript Svelte 5 · SvelteKit 2 · TypeScript 6 · Vite 8SvelteKitRunes, load functions and form actions — the Svelte 5 way.sveltesveltekittypescript Astro 7 · Islands · Content LayerAstroZero-JS by default, islands only where needed, typed content.astroislandsssg Angular 22 · Standalone · Signals · ZonelessAngularStandalone components, signals and typed forms — modern Angular.angulartypescriptsignals React Router 8 · React 19 · TypeScript 6 · Vite 8Remix / React RouterLoaders, actions and web-standard data flow, no client fetch waterfalls.remixreact-routerssr TypeScript 6 · NestJS 11 · Node 24 LTS · Prisma 7NestJSModules, DI and DTOs — a typed, layered Node backend.nestjstypescriptnode Java 25 LTS · Spring Boot 4.1 · Spring Data JPA (Hibernate 7.4)Spring BootConstructor injection, layered services and typed JPA — modern Spring.javaspring-bootjpa Ruby 4.0 · Rails 8.1 · Hotwire · Solid QueueRuby on RailsFat-model, skinny-controller, Hotwire-first — the Rails way.rubyrailshotwire .NET 10 · C# 14 · ASP.NET Core · EF Core 10ASP.NET CoreMinimal APIs, typed DI and EF Core — modern .NET.csharpdotnetaspnet Python 3.14 · Flask 3.1 · SQLAlchemy 2.0FlaskApp factory, blueprints and typed schemas — Flask done right.pythonflasksqlalchemy Elixir 1.20 · Phoenix 1.8 · LiveView 1.2 · Ecto 3.14PhoenixContexts, LiveView and OTP — idiomatic Elixir web.elixirphoenixliveview

Mobile4

Native and cross-platform apps — state, navigation, performance.

Expo SDK 57 · React Native 0.86 · React 19.2 · TypeScript 6.0 · Expo Router 57React Native (Expo)Expo Router, typed components and native-safe patterns.react-nativeexpomobile Dart 3.12 · Flutter 3.44 · Riverpod 3FlutterComposition, immutable state and Riverpod — idiomatic Flutter.flutterdartmobile Swift 6.3 · SwiftUI · iOS 26 · Xcode 26SwiftUIValue types, @Observable and async/await — modern iOS.swiftswiftuiios Kotlin 2.4 · Compose BOM 2026.06 · Material 3 1.4 · Hilt 2.60Jetpack ComposeStateless composables, unidirectional state and coroutines.kotlincomposeandroid

Languages13

Idiomatic, safe, fast — the way the language wants to be written.

Go 1.26 · stdlib net/http · database/sql + pgx/v5 · golangci-lint v2.12.2GoIdiomatic Go — small interfaces, explicit errors, standard library over frameworks.gogolangbackend Rust 1.96 · edition 2024 · cargo · clippy · tokio 1.52RustSafe, explicit Rust — Result over panic, borrow-checker-friendly, clippy-clean.rustcargoclippy TypeScript 6.0 · Node.js 24 LTS · Vitest 4.1 · Zod 4TypeScriptStrict types, no any, discriminated unions — TS as a real type system.typescripttypesstrict Python 3.14 · type hints · ruff 0.15 · uv 0.11PythonTyped, idiomatic Python — comprehensions, dataclasses, no bare except.pythontype-hintsruff Java 25 LTS · Records · Sealed types · Streams · JUnit 6JavaRecords, sealed types, streams and Optional — modern Java.javarecordsstreams C# 14 · .NET 10 · nullable enabledC#Nullable refs, records, LINQ and async — idiomatic C#.csharpdotnetlinq Kotlin 2.4 · Coroutines 1.11 · JDK 25 LTSKotlinNull-safety, data classes, coroutines and sealed types.kotlincoroutinesjvm Swift 6.3 · Swift 6 language mode · Structured ConcurrencySwiftValue semantics, optionals and structured concurrency.swiftvalue-typesconcurrency Ruby 4.0 · RuboCop 1.88 · RSpec 3.13 · RBS/SorbetRubyBlocks, enumerable, duck typing — expressive, idiomatic Ruby.rubyidiomatic PHP 8.5 · typed · PSR-12 · PHPStan maxPHPStrict types, enums, readonly and constructor promotion.phppsr-12typed C++23 · GCC 16 · Clang 22 · CMake 4.3C++RAII, value semantics and no raw new/delete — modern C++.cppcpp20raii PostgreSQL 18.4 · sqlfluff 4.2.2 · pgTAP 1.3.4SQLSet-based thinking, real indexes, parameterized — production SQL.sqlpostgresqlindexing Bash 5.3 · shellcheck 0.11 · shfmt 3.13 · bats-core 1.12Bash / ShellStrict mode, quoted vars, shellcheck-clean scripts.bashshellscripting

Data & AI3

Reproducible training, grounded LLMs and pipelines that don't lie.

Python 3.13 · PyTorch 2.12 · torchvision 0.27 · CUDA 13PyTorch / MLReproducible training loops, device-safe tensors, no silent NaNs.pytorchmldeep-learning Python 3.14 · Pydantic v2 · pgvector/Qdrant · LiteLLMLLM Apps (RAG)Grounded retrieval, structured output and guardrails — production LLM.llmragai Python 3.14 · Polars 1.42 · pandas 3.0 · dbt-core 1.11 · Dagster 1.13Data EngineeringVectorized transforms, typed schemas, idempotent pipelines.datapandaspolars

DevOps4

Ship it safely — small images, sane manifests, reviewed infra.

Docker Engine 29 · BuildKit 0.31 · Dockerfile 1.25 · distroless (Debian 13)DockerSmall, cached, non-root images — production Dockerfiles.dockercontainersdevops Kubernetes 1.36 · Kustomize · Helm 4.2 · Gateway API 1.6KubernetesDeclarative, resourced, probed workloads — safe K8s manifests.kubernetesk8sdevops Terraform 1.15 · AWS provider 6 · S3 native locking · tflint 0.63 · Trivy 0.72TerraformRemote state, locked versions, modular, plan-before-apply.terraformiacdevops GitHub Actions · ubuntu-24.04 · checkout@v7 · OIDCGitHub Actions (CI/CD)Pinned actions, least-privilege, cached, matrix pipelines.ci-cdgithub-actionsdevops

Workflows12

How to work, not what to build — review, tests, commits, a11y, perf.

TDD · Vitest 4.1 · pytest 9.1 · JUnit 6.1 · Go 1.26Test-Driven DevelopmentWrite the failing test first — every behaviour, no exceptions, fast feedback.tddtestingworkflow pnpm 11 · Turborepo 2.10 · TypeScript 6 · Node 24MonorepoShared packages, task caching and clean boundaries — a monorepo that scales.monorepoturborepopnpm OWASP Top 10:2025 · ASVS 5.0 · secure-by-defaultSecurity-FirstValidate every input, never trust the client, keep secrets out of the code.securityowaspvalidation Git 2.55 · Conventional Commits 1.0.0 · commitlint 21 · Lefthook 2.1Commits & Pull RequestsSmall, atomic, conventional commits and PRs a reviewer can actually read.gitcommitsconventional-commits GitHub Reviews · gh CLI 2.96 · Conventional Comments 1.0Code ReviewCorrectness-first, kind, specific, blocking-vs-nit reviews.code-reviewqualitycollaboration WCAG 2.2 AA · WAI-ARIA 1.2 · axe-core 4.12Accessibility (a11y)Semantic HTML, keyboard, contrast — WCAG by default.accessibilitya11ywcag Core Web Vitals · web-vitals 5 · Lighthouse CI · Next.js 16 / Vite 8Web PerformanceShip less JS, measure first, protect Core Web Vitals.performanceweb-vitalsoptimization Node.js 24 · TypeScript 6 · Fastify 5.9 · OpenAPI 3.2 · GraphQL Yoga 5API DesignConsistent resources, correct status codes, versioned contracts.api-designrestgraphql Refactoring · Fowler 2e + Tidy First · ast-grep 0.44 · Stryker/PIT/mutmutRefactoringGreen tests, tiny steps, one reason at a time.refactoringclean-codemaintainability Node.js 24 LTS · TypeScript 6 · Chrome DevTools · Pino 10 · OpenTelemetry 2 · Playwright 1.61 · ESLint 10DebuggingReproduce first, bisect, fix the cause not the symptom.debuggingtroubleshooting Playwright 1.61 · TypeScript 6.0 · Node.js 24 LTSE2E Testing (Playwright)User-facing selectors, auto-waiting, isolated, no flakiness.testinge2eplaywright TypeScript 6.0 · TypeDoc 0.28 · TSDoc · Docusaurus 3.10 · MADR 4.0DocumentationExplain why, keep docs next to code, current or deleted.documentationreadmeadr

53 rule sets · public domain (CC0) · a Promptheus project