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fp-ts-react

fp-ts-react

github.com/sickn33Development48.7k84 installsUpdated today
Repository

About fp-ts-react

A skill guide for applying fp-ts patterns in React apps, aimed at developers building typed state and data-fetching flows. It maps common cases to fp-ts types and hooks, while noting that its integration sketches need validation.

Key features

  1. 01Choosing Option, Either, and TaskEither
  2. 02Modeling request states with RemoteData
  3. 03Accumulating form validation errors
  4. 04Using ReaderTaskEither for dependency injection

Use cases

  1. 01Handling optional values and operation failures
  2. 02Building loading, error, and success interfaces
  3. 03Validating forms with multiple rules
  4. 04Applying functional patterns in React or Next.js

Install

Copy the command and run it in a terminal.

$npx skills add https://github.com/sickn33/agentic-awesome-skills --skill fp-ts-react

After installing, type/fp-ts-reactin Claude Code to confirm it loaded.

Bundled filesreferences/detailed-guide.md

Details

From the project README

Functional Programming in React

Practical patterns for React apps. Untested integration sketches; validate external JSON and request lifecycle behavior.

Detailed Guide

Read the detailed guide before executing this skill. It retains the complete procedure and reference material. Treat its safety, prerequisites, and validation requirements as mandatory. For focused work, load the relevant sections; for end-to-end work, read the guide completely.

When to Use This Skill

  • When building React apps with fp-ts for type-safe state management
  • When handling loading/error/success states in data fetching
  • When implementing form validation with error accumulation
  • When using React 18/19 or Next.js 14/15 with functional patterns

When to Use What

SituationUse
Value might not existOption<T>
Operation might fail (sync)Either<E, A>
Async operation might failTaskEither<E, A>
Need loading/error/success UIRemoteData<E, A>
Form with multiple validationsEither with validation applicative
Dependency injectionContext + ReaderTaskEither
Prevent re-renders with fp-tsuseMemo or fp-ts-react-stable-hooks

Limitations

  • Use this skill only when the task clearly matches the scope described above.
  • Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
  • Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.

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