claude-inspector

Gotchas when building shared ESLint/Prettier/TypeScript config packages installed from GitHub. Use when: (1) "Cannot find package" errors from a shared config's imports, (2) tsconfig paths resolve to wrong directory after extending shared config, (3) ESLint flat config overrides not taking effect for test/script files, (4) "getVisitorKeys is not a function" from prettier-plugin-tailwindcss. Covers npm symlink resolution, tsconfig extends path semantics, ESLint flat config ordering, and prettier plugin version compatibility.

Svelte 5 best practices including runes ($state, $derived, $effect), dependency tracking patterns, global/shared state, SSR safety, ESLint configuration, and component patterns

TypeScript development best practices including type system, generics, utility types, configuration, and patterns for React, Node.js, and full-stack applications