firefrost-gaming/antigravity-skills-reference

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sickn33 054565490e meta(skills): Backfill risk and source metadata

Add a conservative metadata fixer for missing risk and source fields,
cover it with tests, and backfill the remaining skills using explicit
source inference only when the provenance is clear. Fall back to the
repo-documented defaults when the file does not support a stronger claim.

Refs #365

2026-03-20 09:17:09 +01:00

2.3 KiB

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name, description, risk, source, version, tags

name

description

risk

source

version

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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