Good tests give you confidence to ship. Bad tests give you a false sense of security while slowing you down. The goal isn't 100% coverage - it's the right tests for the right things. This skill...
World-class growth strategy expertise combining Andrew Chen's marketplace and network effects wisdom, Brian Balfour's growth frameworks, Casey Winters' Pinterest/Grubhub playbooks, and the best of...
Master function composition in fp-ts using pipe and flow for building elegant, type-safe data transformation pipelines
Master Do notation in fp-ts to write readable, sequential functional code without callback hell. Covers bind, apS, let, bindTo and real-world patterns.
Practical immutability patterns in TypeScript - spread operators, nested updates, readonly types, and when mutation is actually fine
Functional error handling and nullable value management using fp-ts Option and Either types
This skill should be used when developing, optimizing, testing, or submitting algorithms for The Innovation Game challenges (3-SAT, CVRP, Knapsack). Use it for algorithm development, performance...
Functional async patterns using TaskEither for type-safe error handling in TypeScript
Validation patterns using fp-ts with error accumulation, form validation, and API input validation
Everyday data transformations using functional patterns - arrays, objects, grouping, aggregation, and null-safe access
Product types, sum types, semigroups, monoids, Eq, Ord, and building custom type class instances for domain modeling in TypeScript
A personal JavaScript learning repo with exercises based on the MDN “Test your skills” modules
Collection of Claude Skills for DSPy framework - program language models, optimize prompts, and build RAG pipelines systematically
In this challenge, I'm committed to honing my Java programming skills by writing solutions from scratch without referring to any online sources or relying on assistance from chat bots. I believe...
TaminWeb is a personal portfolio website built with HTML, CSS, and JavaScript, showcasing Md Taminul Islam’s skills, projects, blogs, and achievements. It features a responsive design for desktop...
Practical async patterns using TaskEither - clean pipelines instead of try/catch hell, with real API examples
Stop throwing everywhere - handle errors as values using Either and TaskEither for cleaner, more predictable code
Expert guidance on Swift Concurrency best practices, patterns, and implementation. Use when developers mention: (1) Swift Concurrency, async/await, actors, or tasks, (2) "use Swift Concurrency" or...
Claude Code configs for the expert Solana builder. CLAUDE.md, agents, commands, hooks, rules, skills and settings across Web, Anchor, Pinnochio, Unity, Mobile and more.
Helius Solana RPC and API expert. High-performance infrastructure for Solana including RPC nodes, DAS API for NFTs/tokens, LaserStream real-time streaming, webhooks, Priority Fee API, Enhanced...