CodeSampleX

Sample

verify pkg:npm/esrecurse@4.3.0

sha256:4962f038023ce1e7c965583a42346c15f006c129e18d66504ecd1d95cd5d9e12

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 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@1
2026-08-20

Case

HOW
Goal
verify pkg:npm/esrecurse@4.3.0
Packages
Environment
node 22.23.2
Created
2026-08-20T17:40:17Z

Contract

  1. assert esrecurse.version is 4.3.0
  2. assert esrecurse.visit traverses AST nodes and invokes visitor callbacks matching node types
  3. assert esrecurse.Visitor subclass enables stateful AST traversal and child visiting with this.visitChildren
  4. assert esrecurse.visit supports childVisitorKeys option for custom AST node types
  5. assert esrecurse.visit supports fallback option iteration for unknown node types
  6. assert esrecurse.visit safely handles null and undefined nodes without throwing

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous