Backend and APIs skills

Ta0ing/claude-code_evil

Skill Claude CodeCodex

Use this skill when the user wants to build with the Claude API or Anthropic SDKs.

opencoredev/login-with-chatgpt

Skill Claude CodeCodex

Integrate Login with ChatGPT (@opencoredev/loginwithchatgpt-): let users sign in with their own ChatGPT account and run AI requests against their ChatGPT plan. Use when adding ChatGPT account login, mounting createChatGPTHandler, rendering the LoginWithChatGPT React button or useLoginWithChatGPT hook, wiring…

KLR-Pattern/pydantic-resolve

Skill Claude Code

A three-stage development method for Python projects built with pydantic-resolve, starting with agreed data models and ending with application interfaces. It uses an ER diagram, which shows database entities and their relationships, plus ORM models that represent database records in code.

Doist/todoist-cli

Skill Claude CodeCodex needs its repo

Guide for adding new CLI commands or subcommands to todoist-cli. Use when implementing new SDK endpoints, adding subcommands to existing command groups, or extending CLI functionality.

cha0upup/LeoAI

Skill Claude CodeCodex

A specialised helper for creating or updating Disguises on a platform, including the code that changes and restores traffic data.

tedivm/robs_awesome_python_template

Skill Claude CodeCodex

Configure or use the aiocache caching layer. Use when: adding cache reads/writes, configuring cache backends, working with TTLs, enabling/disabling caching, or understanding the NoOpCache fallback pattern.

lj1270998580-crypto/Agnes-help-skill

Skill Claude CodeCodex

A skill for supporting and troubleshooting the Agnes AI API, including checking versions and reviewing updates.

xai-org/plugin-marketplace

Skill Claude CodeCodex ✓ vendor

Overview of the Neon platform for apps and agents, spanning Postgres, Auth, Data API, and the new services: Object Storage, Compute Functions, and AI Gateway. Use whenever "Neon" is mentioned for an overview of how to work with Neon and how to get started. Otherwise, the individual capabilities are the triggers…

Sagit-chu/flvx

Skill Claude CodeCodex

Operate FLVX traffic forwarding management system via REST API. Supports user/node/tunnel/forward management, federation clustering, and traffic monitoring. Use when user wants to manage FLVX panel programmatically or via natural language.

abersheeran/kui

Skill Claude Code

Guide for building web applications with the Kui framework. Use when writing Kui ASGI/WSGI handlers, defining routes, binding parameters, configuring OpenAPI docs, or working with middleware/dependency injection.

Kadajett/agent-nestjs-skills

Skill Claude CodeCodex

NestJS best practices and architecture patterns for building production-ready applications. This skill should be used when writing, reviewing, or refactoring NestJS code to ensure proper patterns for modules, dependency injection, security, and performance.

tarlepp/symfony-flex-backend

Skill Claude CodeCodex

Inspect and update Symfony Flex recipes with Composer, preserving project customizations, reviewing staged changes and conflicts, and validating affected configuration.

MadAppGang/claude-code

Skill Claude CodeCodex needs its repo

Use when integrating Apidog + OpenAPI specifications with your React app. Covers MCP server setup, type generation, and query layer integration. Use when setting up API clients, generating types from OpenAPI, or integrating with Apidog MCP.

EvilFreelancer/openapi-to-cli

Skill Claude Code

Turn any OpenAPI, Swagger, or OpenRPC API into CLI commands and call them. Search endpoints with BM25, check parameters, execute — no MCP server needed.

pssah4/vault-operator

Skill Claude CodeCodex

Sandbox API reference, proven patterns, and library recommendations for evaluateexpression.

jackfranklin/dotfiles

Skill Claude Code

Scaffold a new Deno 2 + Hono + Deno KV + Eta + HTMX app with password auth and PWA support. Use when the user wants to create a new personal web app following this stack.

ElsiKora/NestJS-Crud-Automator

Skill Claude CodeCodex

Design, audit, document, refactor, and implement NestJS CRUD Automator resources using @elsikora/nestjs-crud-automator. Use when working with ApiController, ApiService, ApiFunction, ApiFunctionCustom, ApiRouteCustom, ApiMethod, ApiPropertyDescribe, ApiPropertyCopy, manual DTOs, autoDto, GETLIST response item DTOs…

anxiong2025/25-Day-Agents-Course-by-Google

Skill Claude Code

A helper for designing REST APIs, which let software exchange data over standard web requests. It focuses on consistent names and common design practices.

jdrhyne/agent-skills

Skill Claude CodeCodex

Query and manage Salesforce CRM data via the Salesforce CLI (sf). Run SOQL/SOSL queries, inspect object schemas, create/update/delete records, bulk import/export, execute Apex, deploy metadata, and make raw REST API calls.

temporalio/skill-temporal-developer

Skill Claude CodeCodex

Develop, debug, and manage Temporal applications across Python, TypeScript, Go, Java, .NET, Ruby, and Rust. Use when the user is building workflows, activities, workers, or background job queues with a Temporal SDK, debugging issues like non-determinism errors, stuck workflows, or activity retries, using Temporal CLI…

fpindej/netrock

Skill Claude Code

Backend convention reference (.NET 10 / C# 13). Auto-injected into backend-aware agents - not user-invocable.

seb1n/awesome-ai-agent-skills

Skill Claude CodeCodex

Set up webhook receivers with signature verification, idempotent event processing, retry handling, and dead letter queues for reliable event-driven integrations. Use when the user requests webhook setup or provides relevant inputs for this workflow.

AgentSecOps/SecOpsAgentKit

Skill Claude CodeCodex

API specification linting and security validation using Stoplight's Spectral with support for OpenAPI, AsyncAPI, and Arazzo specifications. Validates API definitions against security best practices, OWASP API Security Top 10, and custom organizational standards. Use when: (1) Validating OpenAPI/AsyncAPI specifications…

aki77/activestorage-validator

Skill Claude CodeCodex

Validate ActiveStorage attachments (content type, file size, file extension) with the activestorage-validator gem's blob validator. Use when adding validations to hasoneattached / hasmanyattached attributes.