CodeSampleX

Sample

identify UUID length errors with github.com/google/uuid.IsInvalidLengthError

sha256:3ba6b0d7ddb610c1c5ba2a71d1748238b4770fcf7493f40009ad89d5eb70341e

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 windows 11 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		 2026-08-19

Case

HOW
Goal
identify UUID length errors with github.com/google/uuid.IsInvalidLengthError
Packages
Symbols
  • github.com/google/uuid.IsInvalidLengthError
Created
2026-08-19T08:04:30Z

Contract

  1. uuid.IsInvalidLengthError returns true for parse errors caused by invalid string length
  2. uuid.IsInvalidLengthError returns true for byte slice parse errors with invalid length
  3. uuid.IsInvalidLengthError returns true for validation errors caused by invalid length
  4. uuid.IsInvalidLengthError returns false for non-length format and syntax errors
  5. uuid.IsInvalidLengthError returns false for nil and unrelated errors

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous