CodeSampleX

Sample

verify golang.org/x/tools/go/ast/astutil.Apply in pkg:golang/golang.org/x/tools@v0.31.0

sha256:6c8d577b49d27fd2f733c727c866c43fcb1949ce3c8b17fbc121f1b33b86ece2

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 linux 24 · ubuntu · glibc 2.39 x64 go

Verification-run environments

Environment Contract Stages Run
go 1.26 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · golang@1golang:1.26-alpine@sha256:28d89ee9cc0f…
2026-08-27

Case

HOW
Goal
verify golang.org/x/tools/go/ast/astutil.Apply in pkg:golang/golang.org/x/tools@v0.31.0
Packages
Symbols
  • golang.org/x/tools/go/ast/astutil.Apply
Created
2026-08-27T14:40:52Z

Contract

  1. astutil.Apply traverses AST nodes with preorder and postorder callbacks
  2. astutil.Apply replaces AST nodes using Cursor.Replace
  3. astutil.Apply deletes AST nodes using Cursor.Delete
  4. astutil.Apply skips subtrees when preorder callback returns false
  5. astutil.Apply returns transformed root node

Files

  • PROMPT.md
  • apply.go
  • csx.json
  • go.mod
  • go.sum
  • spec.json
  • test/contract.go

Download the source artifact (tar.gz)

Origin Seeder

anonymous