Harness engineering surrounds coding agents with tools, constraints, and feedback. Functional programming provides a mature foundation for making that execution layer typed, explicit, composable, and verifiable.
Referential transparency is not academic decoration. It reduces the amount of hidden context humans and AI agents need to understand, test, and safely change a TypeScript system.
Stop writing unreadable nested function calls. Learn how pipe, flow, and compose give you clean, type-safe function composition in TypeScript today.
Monads in TypeScript are simpler than you think. You already use them — Promise and Array are monads. Learn the pattern, then apply it with Maybe, Either, Task, and TaskEither from @oofp/core.
Stop fighting IoC containers. The Reader pattern gives you compile-time dependency injection in TypeScript using plain functions and types — no decorators, no reflect-metadata, no runtime overhead.
Learn how to handle errors in TypeScript using Either and TaskEither monads instead of try-catch blocks. Type-safe, composable, and production-ready patterns.
