Integrations & APIs

frank-luongt Skill

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frank-luongt Bundle

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frank-luongt Bundle

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frank-luongt Skill

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j4flmao Skill

Integration patterns for WebGL and Three.js in web applications.

j4flmao Bundle

Use this skill when the user says 'FastAPI structure', 'FastAPI architecture', 'FastAPI folder', 'FastAPI clean arch', 'FastAPI router', 'FastAPI dependency injection', 'Python backend structure', or when building a FastAPI application. This skill enforces: Clean Architecture folder structure (api/core/domain/application/infrastructure/schemas), Pydantic schemas at the API boundary only, Depends for DI, repository pattern with ABC, pure domain entities with dataclasses. Requires FastAPI in dependencies. Do NOT use for: Django projects, Flask, or non-Python backend stacks.

j4flmao Bundle

Use when the user asks about shopping cart, checkout flow, cart management, order management, discount/coupon system, tax calculation, shipping logic, or e-commerce backend patterns. Do NOT use for: payment processing (ecommerce-payment-processing), or general backend API design (backend-api-design).

j4flmao Bundle

Use this skill when the user says 'webhook', 'webhook receiver', 'webhook delivery', 'signature verification', 'HMAC', 'event delivery', 'outgoing webhook', 'incoming webhook', 'retry webhook', 'webhook endpoint'. This skill implements receiving, verifying, retrying, and delivering webhooks securely. Applies to any backend stack. Do NOT use for: server-sent events (SSE), WebSockets, or long-polling fallbacks.

j4flmao Bundle

Enforce mobile localization patterns for iOS (.strings, .xcstrings) and Android (strings.xml), including plural rules (CLDR), RTL layout support, OTA updates, translation management, locale detection, date/number formatting, and CI integration. NOT for web localization or server-side i18n.

j4flmao Bundle

Use when the user asks about user acceptance testing (UAT), alpha/beta testing, business scenario testing, acceptance criteria, Gherkin, specification by example, or sign-off processes. Do NOT use for: unit testing (quality-unit-testing), integration testing (quality-integration-testing), or regression testing (quality-regression-testing).

j4flmao Bundle

Use when the user asks about GraphQL Federation, Apollo Federation, federated schema, subgraphs, supergraph, schema composition, @key/@requires/@external directives, or distributed GraphQL architecture. Do NOT use for: basic GraphQL schema design (backend-graphql-patterns), or single-service GraphQL APIs.

j4flmao Skill

Authoritative playbook for building a full-stack AI SaaS platform integrating LangChain, Kafka, and Stripe.

j4flmao Bundle

Use this skill when building Ruby on Rails applications — MVC, ActiveRecord, service objects, API mode, background jobs, and testing. This skill enforces: thin controllers, service objects for business logic, ActiveRecord query best practices, Rails API mode conventions, and RSpec testing patterns. Requires Rails 7+ and Ruby 3.1+. Do NOT use for: Sinatra, Rack apps, Hanami, or non-Rails Ruby projects.

j4flmao Skill

Shopify Storefront API and Hydrogen best practices.

j4flmao Skill

Stripe subscription lifecycle and webhook handling.

j4flmao Bundle

Use this skill when the user says 'Django structure', 'Django architecture', 'Django apps', 'Django clean arch', 'Django ORM', 'Django REST framework', 'DRF', or when building a Django application. This skill enforces: one Django app per bounded context, service layer pattern separating business logic from models, thin views that delegate to services, DRF serializers as DTOs, and signals that trigger services (no business logic in signals). Requires Django in dependencies. Do NOT use for: FastAPI projects, Flask, or non-Django Python backend.

j4flmao Bundle

Use this skill when implementing Rust-specific patterns — async/tokio patterns, ownership/borrowing strategies, error handling with thiserror/anyhow, serde serialization, FFI, concurrency with Arc/RwLock, and API patterns. This skill enforces: thiserror for library errors, anyhow for application errors, serde for serialization, Arc for shared state, and tokio for async. Requires Rust (Cargo.toml). Do NOT use for: Go goroutines, Java threads, or non-Rust specific concurrency patterns.

j4flmao Bundle

Use this skill when the user asks about mobile networking, REST client, GraphQL, offline-first, API caching, retry, pagination, background sync, or API interceptors.

j4flmao Skill

Techniques to solve the N+1 problem using Dataloader.

j4flmao Bundle

Use when the user asks about payment processing, payment gateway integration, Stripe, PayPal, subscription billing, PCI DSS compliance, payment orchestration, or recurring payments. Do NOT use for: general e-commerce checkout flow (ecommerce-checkout-cart), or in-app purchases (mobile-in-app-purchase).

j4flmao Bundle

Use when the user asks about generating API clients, OpenAPI/Swagger code generation, REST API client SDKs, or automating API client creation. Do NOT use for: writing API servers, or manual HTTP request code.

j4flmao Bundle

Deep integration of Agile methodologies, Scrum frameworks, and Kanban boards.

j4flmao Bundle

Use this skill when designing API response contracts — Response<T>, exception handling, error codes, pagination envelopes, standardized payload contracts. This skill enforces: uniform ApiResponse<T> envelope, UPPER_SNAKE_CASE error codes, pagination for list endpoints, ISO 8601 UTC timestamps. Do NOT use for: endpoint routing design, database schema, authentication flows.

j4flmao Bundle

Use this skill when the user says 'event-driven', 'message queue', 'Kafka', 'RabbitMQ', 'pub/sub', 'domain event', 'event sourcing', 'CQRS', 'async messaging', 'event bus', or when designing asynchronous communication between services. This skill enforces: domain vs integration event distinction, event naming (past tense), schema versioning, consumer idempotency, dead letter queues, saga patterns, and event sourcing basics. Applies to Kafka, RabbitMQ, NATS, Redis Pub/Sub, SQS/SNS. Do NOT use for: REST API design, database optimization, or synchronous communication patterns.

j4flmao Bundle

Use this skill when the user says 'load test', 'stress test', 'soak test', 'spike test', 'k6', 'Locust', 'Artillery', 'performance test', 'benchmark', 'throughput', 'RPS', 'latency p99', 'CI performance', 'regression test', 'load test results', or when planning performance verification. This skill enforces consistent load testing patterns: tool selection, test type selection, scenario design, results analysis, CI integration, and thresholds. Applies to any backend stack. Do NOT use for: rate limiting design, caching strategy, API design, or database indexing.

j4flmao Bundle

Use this skill when asked about blockchain design patterns, token standards, upgradeable contracts, oracle patterns, layer 2 scaling patterns, cross-chain communication patterns, and common blockchain architecture patterns. Covers ERC standards (20, 721, 1155, 4626, 4337), proxy patterns (UUPS, transparent, beacon), bridge patterns, state channel patterns, sidechain patterns, and MEV-aware design. Do NOT use for: specific language implementation (use blockchain-application), core protocol design (use blockchain-core), or web3 integration (use blockchain-web3).

j4flmao Bundle

Use when the user asks about property-based testing, fuzzing, generative testing, QuickCheck, fast-check, invariant testing, or random testing. Do NOT use for: example-based unit testing (quality-unit-testing), or integration testing (quality-integration-testing).

j4flmao Bundle

Use this skill when the user says 'message queue', 'Kafka', 'RabbitMQ', 'SQS', 'pub-sub', 'event bus', 'consumer group', 'topic', 'queue', 'at-least-once', 'exactly-once', 'idempotent consumer', 'event sourcing', 'dead letter queue', 'DLQ', 'message broker', 'producer', 'consumer', 'event-driven', 'async processing', or when designing asynchronous messaging. This skill enforces consistent messaging patterns: broker selection, topic/queue topology, message schema, consumer groups, retry, DLQ, and idempotency. Applies to any backend stack. Do NOT use for: gRPC streaming, WebSocket real-time, REST API design, or database CDC.

j4flmao Bundle

Use this skill when designing enterprise system integrations with message routing, protocol transformation, and error handling. This skill enforces: anti-corruption layers, SLA-defined integrations, dead letter queue monitoring. Do NOT use for: in-process function calls, simple REST API clients, database replication tools.

j4flmao Bundle

Use this skill when the user says 'API versioning', 'version strategy', 'URI versioning', 'header versioning', 'content negotiation', 'accept header', 'breaking change', 'API migration', 'deprecate endpoint', 'sunset endpoint'. This skill manages API version transitions using URI, header, or content-negotiation strategies. Applies to any backend stack. Do NOT use for: database schema versioning, client SDK versioning, or infrastructure versioning.

itsual Skill

Define a balanced testing strategy across unit, integration, contract, and end-to-end tests. Use when setting up test approach for a project, reviewing test quality, or deciding what kinds of tests to write.

itsual Skill

Design well-structured, evolvable, and performant GraphQL APIs with clear schemas, pagination, and error handling. Use when building or reviewing GraphQL endpoints, schemas, or resolvers.

itsual Skill

Handle secrets (API keys, credentials, certificates, tokens) securely throughout their lifecycle. Use whenever secrets are created, stored, injected, rotated, or accessed by applications.

itsual Skill

Design and use API gateways effectively for routing, cross-cutting concerns, and backend aggregation. Use when introducing or evolving an API gateway, BFF, or edge layer.

itsual Skill

Design and implement secure authentication flows (sessions, tokens, OAuth/OIDC, passwordless, MFA). Use when adding login, signup, token handling, session management, or integrating identity providers.

itsual Skill

Design stable, well-documented, and evolvable APIs and interfaces (REST, GraphQL, internal modules, libraries). Use when creating or significantly changing public or internal APIs, contracts, or module boundaries.