CodeSampleX

Sample

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

sha256:f7d46345b21a561eced9f00ce4f7a45c7dace89d3f86bc315028840e899be2ea

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.Cursor in pkg:golang/golang.org/x/tools@v0.31.0
Packages
Symbols
  • golang.org/x/tools/go/ast/astutil.Cursor
Created
2026-08-27T14:43:10Z

Contract

  1. Cursor.Node and Cursor.Parent return the current AST node and its enclosing parent node during traversal
  2. Cursor.Name and Cursor.Index report the parent AST field name and slice element index
  3. Cursor.Replace replaces an AST node with another node during AST traversal
  4. Cursor.Delete removes an AST node from a slice of statements in a block
  5. Cursor.InsertBefore and Cursor.InsertAfter insert sibling statements into an AST block

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous