Backend & APIs · For developers

Specialized skill for building production-ready Discord bots.

davila7/claude-code-templates

Specialized skill for building production-ready serverless applications on GCP.

davila7/claude-code-templates

Emby API, authentication flow, rating scale, streaming, scrobbling, and video playback.

ad-repo/nullplayer

Provide Counterfact repository orientation, high-level architecture, and the canonical command reference for install/build/test/lint workflows.

counterfact/api-simulator

Implement and review Java code changes for Micronaut framework repositories using maintainer standards, including JSpecify null-safety conventions.

micronaut-projects/micronaut-openapi

Search, install, publish, review, and update Marketplace plugins — Skills, MCP connectors, and Experts/Squads (专家/专家团) — through the unified plugin API.

Mininglamp-OSS/octo-cli

External API integration patterns, retry logic, circuit breakers, caching, rate limiting for government data APIs

Hack23/cia

Add or change a REST API resource in agent-manager-service (the Go control plane).

wso2/agent-manager

A skill your agent uses when gating a feature behind a flag, dogfooding or gradually rolling out a change, choosing between productfeatures and PostHog feature flags, adding or checking a product…

speakeasy-api/gram

The entry point for writing or revising any documentation in this repo: user guides, deployment pages, plugin-dev pages, API specs, the env-var reference, CLI pages.

langgenius/dify-docs

Implements navigation patterns and routing for both frontend (React/TS) and backend (Python) including menus, tabs, breadcrumbs, client-side routing, and server-side route configuration.

ancoleman/ai-design-components

A skill your agent uses when handed a GitHub issue (number or URL) to execute end to end.

lbedner/aegis-stack

References Serverless OpenClaw architecture. An agent skill from serithemage/serverless-openclaw.

serithemage/serverless-openclaw

A skill your agent uses when evolving aggregate invariants, value objects or domain events in an existing DDD-style Spring Boot 3 application, or when DDD is explicitly requested.

rrezartprebreza/spring-boot-skills

Generates and validates docstrings, OpenAPI specs, JSDoc annotations and user guides, running every code example through a real compiler or linter before reporting coverage.

Jeffallan/claude-skills

Guides C# work on .NET 8+: ASP.NET Core APIs, Entity Framework Core data access, Blazor apps and CQRS with MediatR, following a five-step build workflow.

Jeffallan/claude-skills

Builds Django apps and Django REST Framework APIs: models with indexes, ORM query optimization, serializers, viewsets and JWT authentication, with tests.

Jeffallan/claude-skills

Sets up Django 4.2+ to keep static and media files on AWS S3 through django-storages, with public and private backends, presigned URLs and CloudFront.

Jeffallan/claude-skills

Guides building .NET 8 services with minimal APIs, clean architecture, Entity Framework Core, MediatR CQRS and JWT authentication, with build and test checks.

Jeffallan/claude-skills

Builds async Python APIs with FastAPI and Pydantic V2, covering endpoints, JWT authentication, async SQLAlchemy, WebSockets and pytest checks against the OpenAPI docs.

Jeffallan/claude-skills

Designs GraphQL schemas and Apollo Federation graphs, with DataLoader resolvers, subscriptions, query complexity limits and caching.

Jeffallan/claude-skills

Builds Spring Boot 3.x services on Java 21 with domain-driven design, WebFlux, JPA tuning and Spring Security using OAuth2 and JWT, verified by Maven or Gradle builds.

Jeffallan/claude-skills

Applies idiomatic Kotlin 1.9+ patterns for coroutines and Flow, multiplatform code, Jetpack Compose on Android and Ktor servers, checked with detekt and ktlint.

Jeffallan/claude-skills

Designs distributed systems: bounded-context service boundaries, sync and async communication, data ownership, resilience, tracing and rollout strategy.

Jeffallan/claude-skills

Scaffolds NestJS modules, controllers, services, DTOs and guards for TypeScript backends, with validation, JWT and Passport auth, Swagger docs and unit and E2E tests.

Jeffallan/claude-skills

Writes strictly typed modern PHP 8.3+ for Laravel, Symfony and plain projects, with PHPStan level 9, PHPUnit or Pest tests, typed DTOs and secure defaults.

Jeffallan/claude-skills

Builds Rails 7+ apps with Hotwire Turbo Frames and Streams, Active Record tuning, Action Cable, Sidekiq jobs and RSpec specs, with migration and N+1 checks.

Jeffallan/claude-skills

Guides secure implementation of authentication, authorization, input validation and security headers, with password hashing, parameterized queries and OWASP Top 10 checks.

Jeffallan/claude-skills

Builds Shopify themes in Liquid, custom apps, Storefront API storefronts and checkout extensions, using the Shopify CLI to lint, run locally and deploy.

Jeffallan/claude-skills

Builds Spring Boot 3.x services with REST controllers, Spring Data JPA, Spring Security 6, WebFlux and Spring Cloud, verified by tests and Actuator health checks.

Jeffallan/claude-skills

Builds real-time servers with WebSockets or Socket.IO: authentication, rooms, reconnection, Redis-backed horizontal scaling, sticky sessions and monitoring.

Jeffallan/claude-skills

Develops WordPress themes, plugins, Gutenberg blocks and WooCommerce features with nonce, escaping and capability checks, phpcs linting and caching tuned for speed.

Jeffallan/claude-skills

Validate a proposed DeepSeek API integration before any key or project context is sent: check thinking-mode tool-call history, strict-schema assumptions, bounded output, and provider data boundaries.

AnastasiyaW/codex-claude-code-config

Start the official Cursor SDK login flow. An agent skill from greenpolo/cc-multi-cli-plugin.

greenpolo/cc-multi-cli-plugin

Ukrainian-language skill for writing API documentation from source code: OpenAPI specs, endpoint pages, SDK examples, integration and authentication guides and error code references.

luongnv89/claude-howto

Chinese-language skill that produces API docs from source code, covering OpenAPI specs, endpoint write-ups, SDK usage samples, integration guides, error code tables and auth guides.

luongnv89/claude-howto

Make Alpaca API clients resilient — rate-limit header handling, HTTP 429 backoff, exponential retry, bounded concurrency/worker pools, pagination loops, batch sizing, and timeouts.

alpacahq/alpaca-skills

Automatically migrate Spring MVC applications to Spring Boot.

ArabelaTso/Skills-4-SE

Check reburp's Montoya API coverage and detect when a Burp/Montoya upgrade added or changed APIs.

forefy/reburp

Configure portal cookie names, prefixes, domains, paths, attributes, and refresh overrides.

greenpau/caddy-security

Maintain Caddy security configuration snippets, assets/conf examples, and assets/solutions scenarios.

authcrunch/authcrunch.github.io

Canvas LMS integration — fetch enrolled courses and assignments using API token authentication.

Tommy-yw/RunbookHermes

Run a deep full-text search across every Remnic memory. An agent skill from joshuaswarren/remnic.

joshuaswarren/remnic

Build or update the BlueBubbles external channel plugin for Clawdbot (extension package, REST send/probe, webhook inbound).

huangruiteng/CS-Notes

Provides knowledge and workflows to implement Android's Restore Credentials feature using the androidx.credentials library.

sreichholf/dreamDroid

Build persistent microfeed webhook receivers, integrations, and autonomous workflows.

microfeed/microfeed

Agent-only procedure for registered process-to-event sources and their wakes.

kunchenguid/firstmate

Build and review Rails webhook systems with safe delivery, retries, observability, and tenant-aware security controls.

marckohlbrugge/37signals-skills