Haskell Pro

Clear Haskell expertise with strong type-level focus and actionable functional patterns.

• +Defines concrete focus areas like GADTs, STM, and effect systems
• +Provides principled approach with 7 clear guidelines for code design
• +Specifies output expectations with idiomatic patterns and testing
• -Lacks concrete examples or trigger conditions for when to apply techniques
• -Requests filesystem write permission without clear justification in skill content