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Path aliases solve import sprawl in TypeScript, but most teams hit runtime failures in production. Learn why tsconfig paths aren't enough and how to configure every bundler correctly.

Production-ready patterns for building memory-sensitive caches with TypeScript's WeakRef and FinalizationRegistry APIs—avoiding memory leaks while maintaining type safety.

Extended thinking in Claude Code multiplies token costs during long agentic sessions. Learn exactly when to enable it, what it costs per loop type, and the practical patterns that prevent budget overruns while preserving code quality.