CodeSampleX

Sample

verify pkg:golang/github.com/spf13/cobra@v1.8.1

sha256:3aafb016ad1aae4840e13d93963a411f07e1427919a3f9b6dc36f1cc1165ffc8

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 linux 24 · ubuntu · glibc 2.39 x64 go

Verification-run environments

Environment Contract Stages Run
go 1.26 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · golang@1
2026-08-20

Case

HOW
Goal
verify pkg:golang/github.com/spf13/cobra@v1.8.1
Packages
Created
2026-08-20T00:17:05Z

Contract

  1. MarkFlagRequired returns an error when a mandatory flag is omitted
  2. MarkFlagsMutuallyExclusive returns an error when conflicting flags are simultaneously specified
  3. MarkFlagsOneRequired returns an error when none of the grouped flags are specified
  4. AddGroup and GroupID organize subcommands under distinct group headings in command usage

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