CodeSampleX

Sample

find files and directories up the directory tree with find-up

sha256:b3d246028108ee722ea7ba5f93497b773e873d4ef805c70cf5e65f66161d1149

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…
2026-08-26

Case

HOW
Goal
find files and directories up the directory tree with find-up
Packages
Symbols
  • findUp
  • findUp.exists
  • findUp.stop
  • findUp.sync
  • findUp.sync.exists
Environment
node 22.23.2
Created
2026-08-26T06:35:58Z

Contract

  1. assert findUp, findUp.sync, findUp.exists, findUp.sync.exists, and findUp.stop are exported
  2. assert findUp finds a file by name asynchronously starting from a nested directory
  3. assert findUp finds the first matching candidate from an array of filenames
  4. assert findUp.sync finds a directory when type option is set to directory
  5. assert findUp.exists and findUp.sync.exists check path existence asynchronously and synchronously
  6. assert findUp and findUp.sync support custom matcher functions and findUp.stop symbol to halt traversal
  7. assert findUp and findUp.sync return undefined when target file does not exist

Files

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

Download the source artifact (tar.gz)

Origin Seeder

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