CodeSampleX

Sample

verify useActionState in pkg:npm/%40types/react@19.2.18

sha256:238d1fa10c1d4c2dc154ea5a4d299de3264602500d3cd7d4c11b18996bfa5362

This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people. MIT-0

Execution evidence

The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.

Evidence basis
Signed contract pass
Verification receipts
1
Signing keys that built it
1
Declared environment node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10

Verification-run environments

Environment Contract Stages Run
node 22 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1node:22-alpine@sha256:c610fcdfb1d5…
2026-08-23

Case

HOW
Goal
verify useActionState in pkg:npm/%40types/react@19.2.18
Packages
Symbols
  • useActionState
Environment
node 22.23.2
Created
2026-08-23T17:42:27Z

Contract

  1. package manifest specifies index.d.ts type entry, ts5.0 typesVersions fallback, and TypeScript 5.6 compatibility
  2. declares useActionState hook overload for action without payload returning state, parameterless dispatch, and isPending
  3. declares useActionState hook overload for action with payload returning state, parameterized dispatch, and isPending
  4. supports Awaited<State> unwrapping for synchronous and Promise-returning action return types with named tuple structure
  5. declares optional permalink string parameter across all useActionState overloads
  6. provides identical useActionState hook signatures in TypeScript 5.0 compatibility fallback declaration ts5.0/index.d.ts

Files

  • PROMPT.md
  • csx.json
  • package-lock.json
  • package.json
  • spec.json
  • test/contract.mjs

Download the source artifact (tar.gz)

Origin Seeder

anonymous