CodeSampleX

Sample

verify pkg:npm/%40sinclair/typebox@0.27.8

sha256:7d9753bdc47b6880b38e66d6485dbbf78f2ca9e6399edc5d9171b8dbc3033cb0

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. 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		 2026-08-21

Case

HOW
Goal
verify pkg:npm/%40sinclair/typebox@0.27.8
Packages
Environment
node 22.23.2
Created
2026-08-21T05:17:31Z

Contract

  1. Type builder constructs standard JSON Schema compliant object, primitive, array, optional, and union schemas
  2. FormatRegistry registers and resolves custom string format validator functions
  3. TypeCompiler compiles schema into high-performance validator with Check and Errors methods
  4. Compiled validator Check returns true for valid payloads matching property constraints and types
  5. Compiled validator Check returns false and Errors reports specific paths and messages for invalid types, missing required fields, and constraint violations
  6. TypeCompiler correctly validates composite types including union variants and array item schemas

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous