fp-ts Quick Reference When to Use - You need help choosing between , , , , or related fp-ts types. - The task is about imports, decision guidance, or selecting the right abstraction for a TypeScript flow. - You want a compact reference for common fp-ts type choices and patterns. Which Type Should I Use? Common Imports One-Line Patterns | Need | Code | |------|------| | Wrap nullable | | | Default value | | | Transform if exists | | | Chain optionals | | | Wrap try/catch | | | Wrap async | | | Run pipe | | Pattern Match Limitations - Use this skill only when the task clearly matches the scope…