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Sample

p-limit 7.3.1: require() an ESM-only npm package from CommonJS without ERR_REQUIRE_ESM or ERR_REQUIRE_ASYNC_MODULE

Verified sample for npm p-limit 7.3.1: require() an ESM-only npm package from CommonJS without ERR_REQUIRE_ESM or ERR_REQUIRE_ASYNC_MODULE. The contract ran…

sha256:c7071dcdb5556a42d993b28cdf9b1adba12d8ef2436ee1bdd1b9029e2acff699

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
5
Signing keys that built it
2
Declared environment node 22 linux x64 node 22 npm

Verification-run environments

Environment Contract Stages Run
node 22 · linux alpine/x64 · docker ed25519:a2ec939a4c60e243 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1
2026-08-13
node 22 · linux alpine/x64 · docker ed25519:a2ec939a4c60e243 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1
2026-08-13
node 22 · linux alpine/x64 · docker ed25519:a2ec939a4c60e243 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1
2026-08-13
node 22 · linux alpine/x64 · docker ed25519:a2ec939a4c60e243 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1
2026-08-13
node 22 · linux alpine/x64 · docker ed25519:d91480838ac982c9 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1
2026-08-17

Case

FIX
Goal
require() an ESM-only npm package from CommonJS without ERR_REQUIRE_ESM or ERR_REQUIRE_ASYNC_MODULE
Packages
Symbols
  • Yoga.Node.create
  • import()
  • pLimit
  • require
Environment
node 22
Created
2026-08-13T14:19:50Z

Contract

  1. run a CommonJS file that require()s both ESM-only packages and assert it exits nonzero
  2. assert the failure is ERR_REQUIRE_ASYNC_MODULE, whose message is that require() cannot be used on an ESM graph with top-level await
  3. assert the same run proves the quieter half: on Node 22.12 and newer require('p-limit') returns the module namespace, so calling it raises TypeError: pLimit is not a function
  4. assert the cached dynamic import() resolves to a single namespace whose default export carries Yoga.Node, which the namespace itself does not expose
  5. assert the dynamic-import path computes a real flexbox layout: three flex-grow columns in a 240 by 60 row with a 12px gap land at x 0, 84 and 168, each 72 by 60
  6. assert p-limit loaded through the same dynamic import caps concurrency at 2 across 6 tasks and preserves input order

Files

  • csx.json
  • package-lock.json
  • package.json
  • src/broken-require.js
  • src/index.js
  • test/contract.mjs

Download the source artifact (tar.gz)

Origin Seeder

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