Browse skills

Validate and serialize data with Pydantic. Use when a user asks to validate API inputs, parse JSON/env config, define data models in Python, serialize objects, or implement data validation with type hints.

Test Python code with pytest. Use when a user asks to write unit tests, set up test fixtures, mock dependencies, run async tests, measure coverage, or implement test-driven development in Python.

Assists with building, training, and deploying neural networks using PyTorch. Use when designing architectures for computer vision, NLP, or tabular data, optimizing training with mixed precision and distributed strategies, or exporting models for production inference. Trigger words: pytorch, torch, neural network, deep learning, training loop, cuda.

You are an expert in Qdrant, the high-performance vector search engine written in Rust. You help developers build semantic search, RAG retrieval, recommendation systems, and anomaly detection with billion-scale vector collections, advanced filtering, multi-vector support, and hybrid search — providing sub-millisecond query latency with rich payload filtering that other vector DBs can't match.

Qwik is a resumable web framework that delivers instant-loading applications by eliminating hydration. It serializes application state on the server and lazily loads JavaScript on interaction, making it ideal for edge deployment.

Build messaging systems with RabbitMQ — queues, exchanges, routing, dead-letter queues, delayed messages, priority queues, and RPC patterns. Use when tasks involve task queues, background job processing, inter-service communication, request-reply patterns, or reliable message delivery with acknowledgments.

Expert guidance for Ragas, the framework for evaluating Retrieval-Augmented Generation pipelines. Helps developers measure and improve the quality of their RAG systems across retrieval accuracy, answer faithfulness, and response relevance.

Ruby on Rails is a full-stack web framework following convention over configuration. It provides ActiveRecord ORM, Action Controller, Action View templates, Action Cable for WebSockets, and generators for rapid application development.

Manage Railway deployments using the CLI. Use when a user asks to deploy to Railway, check deployment status, manage Railway services, set environment variables on Railway, view Railway logs, link a Railway project, add a database on Railway, scale Railway services, manage Railway environments, rollback a Railway deployment, or run commands with Railway env vars. Covers the full deploy lifecycle from project setup to production monitoring.

Integrate with the QuickBooks Online API via OAuth2 to manage invoices, bills, expenses, customers, vendors, and pull financial reports. Use when: connecting SaaS apps to QuickBooks, automating financial data pipelines, syncing transactions, or building accounting integrations for small business clients.

Framework for scaling Python applications from a laptop to a cluster. Includes Ray Core for distributed computing, Ray Serve for model serving, Ray Tune for hyperparameter optimization, and Ray Data for distributed data processing.

You are an expert in React Email, the library for building responsive HTML emails using React components. You help developers create beautiful, cross-client-compatible email templates with type-safe components, live preview, and integration with email providers (Resend, SendGrid, Postmark, AWS SES) — replacing fragile HTML table layouts with a modern component-based workflow.

Build performant forms in React with React Hook Form. Use when a user asks to handle form validation, build complex multi-step forms, integrate forms with Zod schemas, or reduce form re-renders in React.

Build smooth 60fps animations in React Native with Reanimated — run animations on the UI thread without JS bridge delays. Use when someone asks to "animate in React Native", "Reanimated", "smooth mobile animations", "gesture animations", "shared element transitions", or "60fps React Native animations". Covers worklets, shared values, layout animations, gestures, and scroll-driven animations.

Build accessible UI primitives with Radix UI. Use when creating accessible dropdowns, dialogs, popovers, tabs, tooltips, or building a design system with unstyled, composable components.

Expert guidance for building Raycast extensions — custom commands, views, and integrations for the Raycast launcher on macOS. Helps developers create productivity extensions using React, TypeScript, and Raycast's API for lists, forms, actions, and preferences.

Build accessible UI components with React Aria. Use when creating accessible form controls, implementing ARIA patterns, building design systems, or fixing accessibility issues.

Assists with building iOS and Android applications from a single TypeScript codebase using React Native. Use when implementing mobile UI components, navigation, native device APIs, performance optimization, or setting up testing and CI pipelines for mobile apps. Trigger words: react native, mobile app, ios, android, flatlist, reanimated.

You are an expert in React Three Fiber (R3F), the React renderer for Three.js that lets developers build 3D scenes using JSX components. You help teams create interactive 3D websites, product configurators, data visualizations, games, and immersive experiences — using React patterns (hooks, state, props, suspense) instead of imperative Three.js code, with full access to the Three.js ecosystem.

Build real-time analytics pipelines from scratch. Use when someone asks to "set up analytics", "build a dashboard", "track events in real time", "ClickHouse analytics", "event ingestion pipeline", or "live metrics". Covers event schema design, ingestion services with batching, ClickHouse table optimization, aggregation queries, and dashboard wiring.