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mcollina/typescript-magician

Projeta tipos genéricos complexos, refatora tipos `any` para alternativas estritas, cria type guards e tipos utilitários, e resolve erros do compilador TypeScript.

O que é typescript-magician?

Esta skill é um assistente especializado em TypeScript, focado em tipos avançados e refatoração de código para tipagem estrita. Ela ajuda desenvolvedores a projetar tipos genéricos complexos, converter usos de `any` em tipos seguros, criar type guards e tipos utilitários personalizados, além de diagnosticar e corrigir erros do compilador TypeScript. É útil sempre que o usuário fizer perguntas sobre tipos no TypeScript, como genéricos, inferência de tipos, type guards, remoção de `any`, tipagem estrita, `infer`, `extends`, tipos condicionais, mapped types, template literal types, branded/opaque types, ou tipos utilitários como `Partial`, `Record`, `ReturnType` e `Awaited`. A skill pode ser aplicada em qualquer ambiente de desenvolvimento que suporte TypeScript, incluindo editores como VS Code e terminais. Ela analisa o contexto do código ou pergunta do usuário para fornecer soluções precisas e exemplos práticos.

Funciona com~Claude Code~Codex CLI~Cursor
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npx skills add https://github.com/mcollina/skills/tree/main/skills/typescript-magician
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Documentação

O que typescript-magician faz?

Projeta tipos genéricos complexos, refatora tipos any para alternativas estritas, cria type guards e tipos utilitários, e resolve erros do compilador TypeScript. Use quando o usuário perguntar sobre tipos TypeScript (TS), genéricos, inferência de tipos, type guards, remoção de tipos any, tipagem estrita, erros de tipo, infer, extends, tipos condicionais, mapped types, template literal types, branded/opaque types, ou tipos utilitários como Partial, Record, ReturnType e Awaited.

Individual skills in this repo

This repo contains 4 individual skills — each has its own dedicated page.

mcollina/documentation

Creates, structures, and reviews technical documentation following the Diátaxis framework (tutorials, how-to guides, reference, and explanation pages). Use when a user needs to write or reorganize docs, structure a tutorial vs. a how-to guide, build reference docs or API documentation, create explanation pages, choose between Diátaxis documentation types, or improve existing documentation structure. Trigger terms include: documentation structure, Diátaxis, tutorials vs how-to guides, organize docs, user guide, reference docs, technical writing.

mcollina/fastify-best-practices

Guides development of Fastify Node.js backend servers and REST APIs using TypeScript or JavaScript. Use when building, configuring, or debugging a Fastify application — including defining routes, implementing plugins, setting up JSON Schema validation, handling errors, optimising performance, managing authentication, configuring CORS and security headers, integrating databases, working with WebSockets, and deploying to production. Covers the full Fastify request lifecycle (hooks, serialization, logging with Pino) and TypeScript integration via strip types. Trigger terms: Fastify, Node.js server, REST API, API routes, backend framework, fastify.config, server.ts, app.ts.

mcollina/node

Provides domain-specific best practices for Node.js development with TypeScript, covering type stripping, async patterns, error handling, streams, modules, testing, performance, caching, logging, and more. Use when setting up Node.js projects with native TypeScript support, configuring type stripping (--experimental-strip-types), writing Node 22+ TypeScript without a build step, or when the user mentions 'native TypeScript in Node', 'strip types', 'Node 22 TypeScript', '.ts files without compilation', 'ts-node alternative', or needs guidance on error handling, graceful shutdown, flaky tests, profiling, or environment configuration in Node.js. Helps configure tsconfig.json for type stripping, set up package.json scripts, handle module resolution and import extensions, and apply robust patterns across the full Node.js stack.

mcollina/nodejs-core

Debugs native module crashes, optimizes V8 performance, configures node-gyp builds, writes N-API/node-addon-api bindings, and diagnoses libuv event loop issues in Node.js. Use when working with C++ addons, native modules, binding.gyp, node-gyp errors, segfaults, memory leaks in native code, V8 optimization/deoptimization, libuv thread pool tuning, N-API or NAN bindings, build system failures, or any Node.js internals below the JavaScript layer.

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