961 free skills
Backend Frameworks skills
Framework-specific backend skills — Django, FastAPI, Ruby on Rails, Spring, Laravel, Go, and Rust service patterns.
Sourced from real, public repositories — synced daily, never invented.
961 free skills
Framework-specific backend skills — Django, FastAPI, Ruby on Rails, Spring, Laravel, Go, and Rust service patterns.
Sourced from real, public repositories — synced daily, never invented.
15 tools across six categories
13 of them never send your data anywhere
Free · No signup · No trial clock
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backend
h00mankind/workflow
Working discipline for backend and server-side coding — endpoints, services, data models, migrations, jobs, bug fixes, and refactors — through evidence-first investigation, a verifiable definition of done, surgical diffs, and a mandatory self-critique loop. Use when building or changing APIs, server logic, database schemas, queues, webhooks, integrations, or debugging and fixing any non-UI code. Also works pasted straight into another model's system prompt. Skip for UI work — use frontend.
rails-expert
saeed-vayghan/gemini-agent-skills
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verl-rl-training
firecrawl/ai-research-skills
Provides guidance for training LLMs with reinforcement learning using verl (Volcano Engine RL). Use when implementing RLHF, GRPO, PPO, or other RL algorithms for LLM post-training at scale with flexible infrastructure backends.
nemo-guardrails
firecrawl/ai-research-skills
NVIDIA's runtime safety framework for LLM applications. Features jailbreak detection, input/output validation, fact-checking, hallucination detection, PII filtering, toxicity detection. Uses Colang 2.0 DSL for programmable rails. Production-ready, runs on T4 GPU.
llamaguard
firecrawl/ai-research-skills
Meta's 7-8B specialized moderation model for LLM input/output filtering. 6 safety categories - violence/hate, sexual content, weapons, substances, self-harm, criminal planning. 94-95% accuracy. Deploy with vLLM, HuggingFace, Sagemaker. Integrates with NeMo Guardrails.
nemo-evaluator-sdk
firecrawl/ai-research-skills
Evaluates LLMs across 100+ benchmarks from 18+ harnesses (MMLU, HumanEval, GSM8K, safety, VLM) with multi-backend execution. Use when needing scalable evaluation on local Docker, Slurm HPC, or cloud platforms. NVIDIA's enterprise-grade platform with container-first architecture for reproducible benchmarking.
rivetkit-actors
rivet-dev/skills
Build stateful backends with Rivet Actors: high-performance, long-lived, in-memory, persisted processes. Use when you outgrow HTTP, databases, or queues. Trigger on tasks related to AI agents, multiplayer apps or games, collaborative editors, realtime solutions, workflow automation, geo-distributed or per-tenant databases, local-first sync, WebSocket servers, background or cron jobs, rate limiters, or CRDT docs.
ccxt-mcp
ccxt/ccxt
Official CCXT MCP (Model Context Protocol) server — connect an AI agent to 100+ cryptocurrency exchanges and prediction markets for market data, balances, and opt-in trading. Covers installing the server in Claude Desktop/Code, Cursor, VS Code and other MCP hosts; configuring named accounts and API keys (kept local, never seen by the model); the capability tiers and safety rails; sandbox/testnet trading; and how to drive the tools. Use when the user wants an agent to fetch prices/order books/candles, check balances/orders/positions, place or cancel orders, or explore prediction markets across exchanges.
hunt-django
uphiago/recon-skills
Hunt Django-specific vulnerabilities: DRF permission gaps, ORM injection, and admin exploitation.
ansible-kamal
mauriciovieira/skills
Use when bootstrapping a Rails project that needs Ubuntu VPS provisioning (Ansible) and Kamal 2 deploy (kamal-proxy on 80/443) — scaffolds infra/ansible, infra/kamal, config/deploy*.yml, .kamal/secrets* templates from a hardened reference layout, asking IP, DNS, and whether the host runs both staging+production or only a single domain.
tailwind-expert
victorsmaniotto/degestao
Estilização de interfaces com Tailwind CSS incluindo componentes responsivos, dark mode, customização de tema, e padrões de design system. Usar para criar layouts responsivos, estilizar componentes Laravel/Blade, implementar design systems, e converter designs em código Tailwind.
blecsd-3d
kadajett/blecsd-skill
Render 3D graphics in the terminal with @blecsd/3d. Covers software rasterizer, 3D math (vec3/mat4), multiple backends (braille/sixel/kitty), OBJ loading, scene graphs, and camera systems.
fastapi
yldgio/codereview-skills
FastAPI endpoint design, Pydantic validation, dependency injection, and async patterns
ruby-help
fadynaffa3/railsonclaude
Write idiomatic Ruby code with metaprogramming, Rails patterns, and performance optimization. Specializes in Ruby on Rails, gem development, and testing frameworks.
rails-workflow
ilude/claude-code-config
Ruby on Rails framework workflow guidelines. Activate when working with Rails projects, Gemfile with rails, rake tasks, or Rails-specific patterns.
go-backend-init
luoling8192/go-backend-skills
Initialize a new Go backend repository with production-grade engineering setup. Use when creating new Go microservice projects, setting up Go repos from scratch, or when the user asks to scaffold a Go backend with best practices (Uber FX, Ent ORM, gRPC, CI/CD, linting, Docker).
project-overview
cacr92/wereply
Background knowledge about WeReply project architecture, features, and context. Automatically loaded for AI reference, not directly user-invocable.
backend-generate-skill
jiushiwon/wg-skills
后端生成总入口。用户想做后端但未指定语言时进 backend-select-skill 问答选型；已指定语言（Java/Go/Python/Node）时直接进对应后端 skill；只问规范进 backend-convention-skill；只问数据库进 database-skill。所有后端 skill 强制遵循 backend-convention-skill 的统一响应信封、错误码、JWT、api-contract。触发词："生成后端项目"、"搭建后端骨架"、"初始化后端服务"、"backend generate"、"帮我做个后端接口"、"后端选型"、"用 Java/Go/Python/Node 写后端"、"Spring Boot"、"Gin"、"FastAPI"、"Express"、"NestJS"、"数据库选型"、"后端规范"、"api 契约"。
rails-help
fadynaffa3/railsonclaude
Expert in Ruby on Rails development with conventions and best practices for MVC architecture, ActiveRecord, Hotwire, security, and testing
otel-queries
github/gh-aw
Analyze gh-aw OpenTelemetry traces from JSONL mirrors or OTLP backends.
rails-hotwire
shoebtamboli/rails_claude_skills
Hotwire (Turbo Drive, Turbo Frames, Turbo Streams, Stimulus)
django-patterns
skeletorflet/opencode-kit
Django development principles and decision-making. Modern Django 4.2+ with DRF, Celery, Docker.
scan-codebase-structure
dykyi-roman/awesome-claude-code
Scans directory tree to identify architectural layers (Domain, Application, Infrastructure, Presentation), detect framework (Symfony, Laravel, custom), count files per layer, and build project structure map.
django-6-upgrade-guide
btfranklin/skills
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django-project-context
ristemingov/django-claude-setup
When the user wants to create or update their Django project context document. Also use when starting work on any Django project for the first time, when the user says "set up my project context," "tell Claude about my Django project," "save my project settings," or "what should Claude know about this project." This is the foundation skill — all other Django skills read this document first. Run this once per project so every skill understands the project's Django version, apps, database, conventions, and architecture without having to ask repeatedly.
framework-integrations
vanman2024/ai-dev-marketplace
Django, Flask, FastAPI integration patterns for Celery. Use when integrating Celery with Django, Flask, or FastAPI, setting up framework-specific configurations, handling application contexts, managing database transactions with tasks, configuring async workers, or when user mentions Django Celery, Flask Celery, FastAPI background tasks, framework integration, or web framework task queues.
python-flask-service
mobiilabs/skills
Use when starting, scaffolding, or structuring a Python backend or API service at Mobiiworld. Covers uv (not pip) for dependencies, Flask, .env config, the OpenAI SDK, and an MVC layout.
rails-expert
belokonm/claude-supercode-skills
Rails 7+ specialist with expertise in Hotwire, Turbo, Stimulus, and modern Rails development
rails-patterns
skeletorflet/opencode-kit
Ruby on Rails 7+ patterns and conventions. Covers Hotwire, Turbo, Stimulus, Active Record, and modern Rails architecture.
ookami-coding-style-rails
ookamiinc/guides
>
ring:adding-multi-tenancy
lerianstudio/ring
Adding database-per-tenant isolation into a Go service end-to-end via an 11-gate cycle: detects the stack, audits compliance, then dispatches backend agents to implement tenantId-from-JWT routing through the lib-commons v5 dispatch layer (config, middleware, repositories, metrics, tests) and runs reviewers. Use when adding tenant isolation to a Go service. Skip for non-Go services or organization_id-style soft tenancy.
backend
ekalkutin/skills
How backends are written here — a package per bounded context, layered domain/application/infrastructure/api, value objects as classes, aggregates, commands and queries that never chain, exceptions typed by layer, Prisma per context, and unit tests beside their source. Use when writing or reviewing any server-side TypeScript in this style: domain models, use cases, repositories, controllers, schemas, or their tests.
rust-best-practices
danieldxd/myapp-skills
Aplica melhores práticas Rust — idioms, Clippy, API design, error handling, unsafe consciente, testes e hygiene de crates. Use ao revisar código Rust, endurecer qualidade, refatorar APIs públicas ou quando o usuário pedir best practices, idiomatic Rust ou limpeza de smells.
rust
danieldxd/myapp-skills
Desenvolve software em Rust com ownership, lifetimes, traits, error handling, async, crates e tooling Cargo. Use ao criar ou revisar projetos Rust, bibliotecas, CLIs, serviços, ou quando o usuário pedir código, refactors ou arquitetura em Rust.
django
g1joshi/agent-skills
Django Python full-stack framework with ORM, admin, and auth. Use for Python web apps.
web-backend-node
veracity/veracity-agent-skills
Scaffold a new NodeJS (Express 5 + TypeScript) web backend with the standard baseline capabilities every backend service needs: zod-validated env config with .env layering, helmet security headers with a Content-Security-Policy, health checks (live/ready), a versioned API router anchor (/api/v1), a global error handler, optional HTTPS for local dev, ESLint/Prettier, and vitest + supertest. USE THIS SKILL whenever the user wants to create a new NodeJS or Express backend, bootstrap a Node API service, scaffold a Node/Express + TypeScript web project skeleton, or needs a clean Node baseline project to build on. This skill does NOT add authentication — it produces an unauthenticated baseline. For Veracity login/JWT on a Node backend, use veracity-auth-node (which calls this skill first when no project exists).
django
terminalskills/skills
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django-components
felipe3dfx/skills
>
rails-docker
fadynaffa3/railsonclaude
Dockerfile optimization, docker-compose setup, multi-stage builds, development and production containers for Rails applications
rails-ai:security
zerobearing2/rails-ai
CRITICAL - Use when securing Rails applications - XSS, SQL injection, CSRF, file uploads, command injection prevention
rails-deps
iuhoay/skills
Configure recommended Rails development dependencies. Checks for essential gems like strong_migrations, herb, bullet, and letter_opener. Provides installation and configuration guidance.
sigma-backends
timescale/sigma-backends
Convert, evaluate, and deploy Sigma detection rules across SIEM backends. Covers sigma-cli (pySigma) for converting rules to Splunk SPL, Elasticsearch Lucene/ES|QL, Microsoft Sentinel KQL, QRadar AQL, CrowdStrike, and 20+ other backends. Covers rsigma for direct real-time evaluation against JSON events, linting (65 rules with --fix), validation, and running a detection daemon with correlation, hot-reload, and Prometheus metrics. Includes pipeline-to-backend mapping for ECS, Splunk CIM, Sysmon, and other field schemas. Use this skill whenever the user mentions converting Sigma rules, Sigma backends, sigma-cli, rsigma, SIEM queries, SPL, KQL, Lucene, AQL, LEQL, field mapping, ECS mapping, CIM mapping, detection engineering tooling, or asks how to run, test, validate, lint, or deploy Sigma rules -- even if they don't explicitly name a tool.
kotlin-specialist
belokonm/claude-supercode-skills
Expert Kotlin developer specializing in Kotlin 2.0, Kotlin Multiplatform Mobile (KMP), Coroutines, and Ktor for building modern cross-platform applications and backend services.
010106-backend-architecture
natuleadan/skills
Backend architecture — typed errors, structured API responses, domain modules, service/repository layering, env sanitization, and FK protection.
nixie-fx-authoring
azakhary/nixie-fx
Create, modify, validate, and export NixieFX particle-effect projects for the public editor and runtimes. Use when an agent needs to locate or initialize vfx-editor.prj, create an effect with the nixie-fx CLI, edit effect JSON, organize textures materials or meshes, diagnose validation and backend-support reports, export out/vfx, or prepare an effect for visual review in the NixieFX editor.
fastapi
ffsshhttiikk/opencode-agents-skills
FastAPI web framework best practices and patterns
ruby-engineering
alberfdez1523/language-skills
Improve Ruby development for Rails applications, gems, scripts, and services. Use when the user wants idiomatic Ruby with clear objects, maintainable Rails structure, reliable tests, pragmatic metaprogramming, and production-ready application design.
kiwi-go-backend
yet-another-ai-project/kiwi-skills
Go backend development standards using DDD architecture, ent ORM, fx DI, and kiwi-lib utilities. Covers project structure, domain design, API/application/infrastructure layers, database workflow, and coding requirements.
rust
ffsshhttiikk/opencode-agents-skills
Rust systems programming language for safe, concurrent, practical software
nodejs-backend
profpowell/vanilla-breeze
Build Node.js backend services with Express/Fastify, PostgreSQL, and services pattern. Use when creating backend APIs, setting up servers, or connecting to databases.
deslop
getsentry/junior
Simplifies code interfaces and removes codebase slop while preserving behavior. Use when asked to "deslop", "simplify this interface", "remove cruft", "clean up comments", or "reduce code slop". Enforces hard guardrails for smaller public surfaces, dead-code removal, and high-signal comments.
kotlin
appwrite/claude-plugin
Appwrite Kotlin SDK skill. Use when building native Android apps or server-side Kotlin/JVM backends with Appwrite. Covers client-side auth (email, OAuth with Activity integration), database queries, file uploads, real-time subscriptions with coroutine support, and server-side admin via API keys for user management, database administration, storage, and functions.
ia-php-laravel
iliaal/whetstone
>-
ia-nodejs-backend
iliaal/whetstone
>-
ai
vercel-labs/ai-python
AI SDK for Python (the `ai` package). Use when writing Python that calls LLMs or dedicated image, video, speech, embedding, transcription, or reranking models; builds agents; tests model interactions; or implements tool calling, subagents, approvals, durable execution, telemetry, AI SDK UI backends, and custom providers.
agentic-backend
iii-hq/skills
>-
backend-python
badhope/skill
Python backend development expert with FastAPI, Django, Flask, and async programming. Keywords: python, fastapi, django, flask, backend, api, rest
terraform
danieldxd/myapp-skills
Provisiona infraestrutura com Terraform — state remoto, modules, workspaces/envs, providers, planos seguros, secrets e boas práticas de IaC. Use ao criar ou revisar .tf, modules, backends, CI de plan/apply ou mudanças de cloud (AWS, GCP, Azure, etc.).
compliance-privacy
mmondora/claude-skills
GDPR compliance and privacy as architectural constraints. Data minimization, right to be forgotten, data residency, audit trails, retention policies. Use when handling PII, designing audit systems, or implementing data export/deletion.
django-stripe
ijmadalena/django-stripe-skill
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