Skill UI

Automate retail operations via Composio’s Rube MCP by discovering tool schemas, confirming active Retailed connections, and running workflows that respect the latest execution plans, pagination guidance, and memory/session expectations.

A guide to the Swift 6.2 concurrency model, which mandates default single-threaded execution to eliminate accidental data races. Learn how to use MainActor for isolated consistency and utilize the @concurrent attribute for explicitly offloading CPU-intensive tasks to background threads, ensuring safe and predictable application architecture.

This guide provides comprehensive methods for deploying, promoting, and managing Vercel applications in production environments. It covers advanced strategies like instant rollback, controlled rolling releases (canary deployments), multi-region function configuration, and integrating with headless CMS via deploy hooks. Use this when you require robust CI/CD practices, high availability, and predictable production traffic management.

Offers MATLAB and GNU Octave guidance for matrix math, data import/export, visualizations, statistics, signal processing, differential equations, and general scripting—helpful when writing or translating MATLAB/Octave code and running scripts under either interpreter.

Explains when to call the code-reviewer subagent, how to collect SHAs, fill the template, and act on its feedback so every task, feature, or merge meets quality expectations.

Learn how to handle errors in TypeScript using functional patterns like `Either` and `TaskEither`, eliminating messy try/catch blocks. This guide teaches that errors are simply data, allowing you to write cleaner, more predictable, and type-safe code that explicitly handles potential failures through explicit return values.

A comprehensive quick reference for the Option type within fp-ts. This pattern is crucial for handling nullable, optional, or potentially missing values in a functional and type-safe manner. It allows developers to safely compose operations (mapping, flatMapping) on data that might not exist, eliminating verbose null checks and ensuring robust, predictable code flow in TypeScript.

Master robust and type-safe patterns for React development using fp-ts. This guide covers managing state with Option, sophisticated form validation using Either (collecting all errors), and handling asynchronous data fetching with TaskEither. It promotes a highly functional, predictable coding style for React 18/19 and Next.js.

TaskEither is a functional programming utility from fp-ts designed for handling asynchronous operations that might fail. It provides a robust, type-safe mechanism for managing complex async workflows, such as chained API calls or promise wrappers. Instead of relying on traditional try/catch blocks where errors can be lost, TaskEither forces the developer to explicitly handle both success and failure paths, making error management predictable and composable.

A comprehensive guide to implementing various lighting techniques in Three.js, covering Ambient, Directional, Point, Spot, and RectArea lights. Learn how to configure realistic shadow maps, optimize lighting performance, and achieve high visual fidelity for your 3D web scenes.

This comprehensive guide details the methodology for identifying and exploiting Insecure Direct Object Reference (IDOR) vulnerabilities. It teaches users how to systematically test broken access control in modern web applications and APIs. By manipulating predictable object identifiers (such as user IDs, order numbers, or document slugs), testers can validate if object-level authorization is properly enforced, preventing unauthorized horizontal or vertical data access.

A comprehensive guide for developing robust, Unix-native Command Line Interfaces (CLIs) using Go. It details best practices for command structure, flag handling, configuration layering (Viper), and argument validation using Cobra. Learn how to build, extend, and review professional-grade Go tools that behave predictably in shell environments.