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fp-taskeither-ref

Quick reference for TaskEither

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Install / Use

npx skills add rwi001/vs-code-IDE --skill fp-taskeither-ref

Installs into whichever agent you are using.

About this skill
📄

SKILL.md

Installable skill definition

Quality Score

56/100

Supported Platforms

Universal

Our assessment of fp-taskeither-ref

fp-taskeither-ref scores 56/100 on our quality scale, 4177th of 4,614 Development & Engineering skills we index.

Its SKILL.md is 2.3 KB long, split into 6 sections with 5 code examples: moderately detailed.

It has no GitHub stars yet, so there is no community track record; judge it on its content.

Substance
20/30
Structure
18/20
Description
8/15
Adoption
0/20
Freshness
11/15

Maintenance, license and trust

  • The repository was last updated about 8 months ago. That is recent enough to be usable, but agent tooling moves fast, so check the instructions against your agent's current version.
  • Our last check on 2026-10-18 found the source still online.
  • No license is declared. By default that means all rights are reserved: you can read it, but reusing or redistributing it is not clearly permitted. Ask the author before building on it commercially.
  • Its trust signals score 74/100, with 3 cautions from licensing, adoption, age or documentation. These come from repository metadata, not a code audit — read the skill file before letting an agent act on it.

Safety scan

No issues found

Our scan of the whole file found no instruction hijacking, hidden characters, credential access, data exfiltration or destructive commands. An AI review of the same text found nothing harmful.

AI review by kimi-k2.7-code on 2026-09-24. Automated pattern scan on 2026-09-24. It catches known dangerous patterns, not every risk — read a skill before letting an agent act on it.

fp-taskeither-ref compared with similar skills

All 4 of these similar skills score higher than fp-taskeither-ref; compare them before choosing.

SkillScoreStarsUpdatedFormat
fp-taskeither-ref (this skill)by rwi0015608mo agoSKILL.md
taste-skillby Leonxlnx100111.0k1d agoCLAUDE.md
Agent-Reachby Panniantong100109.5k1d agoCLAUDE.md
headroomby headroomlabs-ai10079.0ktodayCLAUDE.md
ai-job-searchby ai-job-search-dev10070.0ktodayCLAUDE.md

Frequently asked questions

How do I install fp-taskeither-ref?
Run npx skills add rwi001/vs-code-IDE --skill fp-taskeither-ref. The install tabs above show the steps for each supported agent.
Which AI agents does fp-taskeither-ref work with?
It is written for Universal, as a SKILL.md file. Other agents that read the same format can often use it too.
Is fp-taskeither-ref safe to use?
Our scan of the whole file found no instruction hijacking, hidden characters, credential access, data exfiltration or destructive commands. An AI review of the same text found nothing harmful. It declares no license and scores 74/100 on trust signals. Skills are instructions an agent will follow, so read the file before installing it and do not approve commands you do not understand.
Is fp-taskeither-ref still maintained?
The repository was last updated about 8 months ago. That is recent enough to be usable, but agent tooling moves fast, so check the instructions against your agent's current version.

Skill content

View source on GitHub

name: fp-taskeither-ref description: Quick reference for TaskEither. Use when user needs async error handling, API calls, or Promise-based operations that can fail. version: 1.0.0 tags: [fp-ts, taskeither, async, promise, error-handling, quick-reference]

TaskEither Quick Reference

TaskEither = async operation that can fail. Like Promise<Either<E, A>>.

Create

import * as TE from 'fp-ts/TaskEither'

TE.right(value)          // Async success
TE.left(error)           // Async failure
TE.tryCatch(asyncFn, toError)  // Promise → TaskEither
TE.fromEither(either)    // Either → TaskEither

Transform

TE.map(fn)               // Transform success value
TE.mapLeft(fn)           // Transform error
TE.flatMap(fn)           // Chain (fn returns TaskEither)
TE.orElse(fn)            // Recover from error

Execute

// TaskEither is lazy - must call () to run
const result = await myTaskEither()  // Either<E, A>

// Or pattern match
await pipe(
  myTaskEither,
  TE.match(
    (err) => console.error(err),
    (val) => console.log(val)
  )
)()

Common Patterns

import { pipe } from 'fp-ts/function'
import * as TE from 'fp-ts/TaskEither'

// Wrap fetch
const fetchUser = (id: string) => TE.tryCatch(
  () => fetch(`/api/users/${id}`).then(r => r.json()),
  (e) => ({ type: 'NETWORK_ERROR', message: String(e) })
)

// Chain async calls
pipe(
  fetchUser('123'),
  TE.flatMap(user => fetchPosts(user.id)),
  TE.map(posts => posts.length)
)

// Parallel calls
import { sequenceT } from 'fp-ts/Apply'
sequenceT(TE.ApplyPar)(
  fetchUser('1'),
  fetchPosts('1'),
  fetchComments('1')
)

// With recovery
pipe(
  fetchUser('123'),
  TE.orElse(() => TE.right(defaultUser)),
  TE.getOrElse(() => defaultUser)
)

vs async/await

// ❌ async/await - errors hidden
async function getUser(id: string) {
  try {
    const res = await fetch(`/api/users/${id}`)
    return await res.json()
  } catch (e) {
    return null  // Error info lost
  }
}

// ✅ TaskEither - errors typed and composable
const getUser = (id: string) => pipe(
  TE.tryCatch(() => fetch(`/api/users/${id}`), toNetworkError),
  TE.flatMap(res => TE.tryCatch(() => res.json(), toParseError))
)

Use TaskEither when you need typed errors for async operations.

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rwi001

View profile

View on GitHub
GitHub Stars0
CategoryDevelopment
Updated7mo ago
Forks0
rwi001/fp-taskeither-ref

Trust signals

74/100

From repository metadata: license, adoption, age and documentation. Not a code audit — see the Safety scan above for what the skill file itself contains.

1 medium2 low