CodeSampleX

Sample

verify pkg:npm/es-set-tostringtag@2.1.0

sha256:fa5cee200c039710d004c0b1900368edcd7f6b0675d16bf66d61008e6e7451bc

Publication state. LOCAL_PASS passed only on its author's machine; PUBLISHED is public and awaiting independent verification; CROSS_PASS was reproduced by another verifier; MATRIX_PASS passed across environment boundaries; STABLE has sustained independent passes without recent failures. Evidence strength. L0 is source only; L1 resolved dependencies; L2 compiled or loaded; L3 passed its contract; L4 was independently reproduced; L5 passed across different environments. MIT-0

Execution evidence

Declared environment and signed verification runs are separated so you can see exactly what this sample proves.

Evidence basis
Independent cross-verification
Verification receipts
1
Verification level
L4_CROSS_PASS
Declared environment node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm

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@1
2026-08-20

Case

HOW
Goal
verify pkg:npm/es-set-tostringtag@2.1.0
Packages
Environment
node 22.23.2
Created
2026-08-20T20:24:13Z

Contract

  1. setToStringTag sets Symbol.toStringTag on plain objects and alters Object.prototype.toString result
  2. setToStringTag does not overwrite existing toStringTag unless force option is true
  3. setToStringTag respects nonConfigurable option to make Symbol.toStringTag property non-configurable

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous