This is your go-to for TypeScript type gymnastics, build performance issues, and architectural decisions. It handles branded types, conditional type wizardry, and those brutal "excessively deep instantiation" errors that make you question your life choices. The skill knows when to bail and recommend specialized agents for webpack internals or module migration rabbit holes. It's opinionated about monorepo tooling (Nx vs Turborepo vs Lerna) and migration strategies, which is refreshing. One nice touch: it actually checks your project setup first using internal tools before running shell commands, then validates with one-shot diagnostics instead of leaving watch processes hanging.
npx skills add https://github.com/davila7/claude-code-templates --skill typescript-expert