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haskell-pro

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Idiomatic Haskell: pure functional design, type-driven modeling, monad stacks, and principled effects. Use when writing, reviewing, or structuring Haskell programs.

skills/haskell-pro/SKILL.md

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# Haskell Pro

## Overview

Haskell's promise — **if it compiles, it probably works** — comes from purity, laziness, and an
expressive type system. Professional Haskell means modeling with algebraic data types so illegal
states are unrepresentable, keeping the core pure and pushing effects to the edges, and choosing
effect-management strategies (mtl, ReaderT patterns, or effect systems) that the team can actually
maintain.

The through-line: types first, effects explicit, and elegance in service of correctness — not the
other way around.

## When to use
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