Backend and APIs

SaiHemanthMaddi/AI-Agent-QA-Skills-Lab-Repo

Skill Claude CodeCodex

API testing with Playwright APIRequestContext for REST and GraphQL endpoints.

AnitaKirkovska/Meta-CLI

Skill Claude CodeCodex

Build a generic-installable CLI tool with its companion SKILL.md so any agent (Vellum, Claude, GPT, etc.) can pick it up and use it. Use when the task is "ship a CLI for service X" or "wrap API Y in a tool agents can call." Out of scope for one-off internal scripts that don't need agent discovery, and for skills that…

kuil09/tossinvest-openapi-agent-pack

Skill Claude CodeCodex

Use when integrating Toss Securities Open API for market data, holdings, order workflows, and approval-gated execution.

Mailgi/mailgi-web

Skill Claude CodeCodex

Give an AI agent a real, deliverable email address. Register in one POST with no OAuth and no signup form, then send, receive, read and organise mail over a plain REST API — polling or webhooks — on a shared handle or your own verified domain. Also available as a hosted MCP server. Receiving and mail between agents…

Aamir9/dotnet-skill-template

Skill Claude CodeCodex

Architecture rules, naming conventions, and CQRS handler patterns for this .NET solution. Load this whenever generating, reviewing, or refactoring C# code in this repository so output matches the existing codebase instead of generic patterns.

erikboderek/sf-public-sector-skills

Skill Claude CodeCodex

PSS v68.0 native data model: Licensing/Permitting, Inspections, Regulatory Framework, Applications, Benefits, Programs, Grantmaking, Discovery Framework, Complaints, Enforcement, Visits, Party/Identity. TRIGGER: PSS object design, API name mapping, native-vs-custom decisions. SKIP: non-PSS work or pure OmniStudio.

ottotheagent/chain-re-action

Skill Claude CodeCodex

Compile a chained-action config (per chain-re-action SPEC.md) for a multi-step stateful API before writing any client code. Use when building or reviewing an API client / business layer for flows like search→price→book, authorize→capture, or provision→attach→activate — where later steps mutate external state…

pwdel/spec-socialpredict-tasks

Skill Codex

Navigate, query, and make precise edits to SocialPredict's large backend/docs/openapi.yaml without loading the whole file. Use when inspecting tags, paths, operations, schemas, or $ref usage; reconciling the spec with backend handlers and routes; or applying the hard OpenAPI constraints from backend/docs/API-ISSUES.md…

Hmbown/knightsradiant

Skill Claude CodeCodex

Unite systems, teams, and dependencies without hiding the seams.

AndreiBozantan/svelte-axum-template

Skill Claude CodeCodex

Performs a strict code review of Rust backend code (files, diffs, or snippets). Trigger whenever the user shares backend code (Rust, SQL) and asks for a review, feedback, or says "review this" — including partial snippets.

krishnanpandya007/support-technician-setup

Cursor rule Cursor

Use when generating the read-only data-access tools a customer-support agent uses to diagnose an end user's live state — reading a project's backend to propose a tool catalog plus the database access SQL (restricted read-only role, column grants, row-level security), for mandatory human review. Triggers: "discover…

GitRavz/CRUDcraft

Skill Claude CodeCodex

Use when building or editing a small database-backed web app in ANY stack — plain PHP, Laravel, or Supabase, on MySQL/MariaDB, PostgreSQL, SQLite, SQL Server, or a hosted DB — scaffolding a project, creating or evolving a database, designing tables or writing SQL, adding login/registration or user roles, building a…

jondoescoding/jondoescoding-coding-rules

Cursor rule Cursor

Complete guide for implementing Redis-based rate limiting with authentication troubleshooting and FastAPI integration.

nchdatta/projectkit

Agent Claude Code

Owns src/services, src/hooks/queries and src/hooks/mutations. Use to expose a finished API endpoint to the client — entity types, service functions, TanStack Query hooks and keys.

Ivan-Linnik/ai-templater

Agent Claude Code

Use for backend architecture analysis, solution design, and impact analysis. Covers API design, service boundaries, data models, auth, and performance.

ulpi-io/agent-library

Agent Claude Code

Expert Magento 2 developer specializing in module development, dependency injection, plugins, service contracts, REST/GraphQL APIs, Monolog logging, testing with PHPUnit, and production-ready e-commerce applications.

mercuryPark/oc-setup

Skill Claude CodeCodex

Guidance for documenting web APIs with OpenAPI, a standard format for describing endpoints, inputs, outputs, examples, and errors.

Phudit-2547/ChuMaiNichi

Skill Claude CodeCodex

A worker for Python scripts and backend API/DB features.

PwntasticKev/Ge-Metrics

Cursor rule Cursor

Best Practices This is a list of best practices and common anti-patterns around using Convex. We recommend going through this list before broadly releasing your app to production. You may choose to try using all of these best practices from the start, or you may wait until you've gotten major parts of your app working…

rungchan2/frontend-skills

Command Claude Code

CRITICAL ARCHITECTURE RULE: This project follows strict data layer separation principles based on SOLID and encapsulation.

rodrigoratouu-code/saas-factory-setup

Agent Claude Code

Tiempo: 25 minutos Prerequisitos: Bloque 01 (Chat Streaming), Supabase configurado.

fiddike/Cursor-Rules-MDC

Cursor rule Cursor

Cursor rule "symfony-6.4-best-practices" from fiddike/Cursor-Rules-MDC, covering symfony 6.4 best practices and symfony 6.4 best practices.

RexiaAI/CursorRules

Skill Claude CodeCodex

Subagent skill for making changes to the FastAPI backend. Use when the task involves editing Python files in backend/, running backend tests, modifying the Dockerfile, or changing backend configuration.

codeflyer/orchestr.it-minime

Agent Claude Code

Backend Developer Agent Persona.