{"record":{"id":"f3528dc50da7efa3","repo":"Fission-AI/OpenSpec","slug":"duplicate-artifact-id-artifact-id","errorCode":null,"errorMessage":"Duplicate artifact ID: ${artifact.id}","messagePattern":"Duplicate artifact ID: (.+?)","errorType":"exception","errorClass":"SchemaValidationError","httpStatus":null,"severity":"error","filePath":"src/core/artifact-graph/schema.ts","lineNumber":54,"sourceCode":"  validateNoDuplicateIds(schema.artifacts);\n\n  // Check that all requires references are valid\n  validateRequiresReferences(schema.artifacts);\n\n  // Check for cycles\n  validateNoCycles(schema.artifacts);\n\n  return schema;\n}\n\n/**\n * Validates that there are no duplicate artifact IDs.\n */\nfunction validateNoDuplicateIds(artifacts: Artifact[]): void {\n  const seen = new Set<string>();\n  for (const artifact of artifacts) {\n    if (seen.has(artifact.id)) {\n      throw new SchemaValidationError(`Duplicate artifact ID: ${artifact.id}`);\n    }\n    seen.add(artifact.id);\n  }\n}\n\n/**\n * Validates that all `requires` references point to valid artifact IDs.\n */\nfunction validateRequiresReferences(artifacts: Artifact[]): void {\n  const validIds = new Set(artifacts.map(a => a.id));\n\n  for (const artifact of artifacts) {\n    for (const req of artifact.requires) {\n      if (!validIds.has(req)) {\n        throw new SchemaValidationError(\n          `Invalid dependency reference in artifact '${artifact.id}': '${req}' does not exist`\n        );\n      }","sourceCodeStart":36,"sourceCodeEnd":72,"githubUrl":"https://github.com/Fission-AI/OpenSpec/blob/6926ccb18afa4ff621112813e9968334576ee11a/src/core/artifact-graph/schema.ts#L36-L72","documentation":"Error \"Duplicate artifact ID: ${artifact.id}\" thrown in Fission-AI/OpenSpec.","triggerScenarios":"Thrown at src/core/artifact-graph/schema.ts:54 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"6926ccb18afa4ff621112813e9968334576ee11a","analyzedAt":"2026-08-25T12:29:45.729Z","schemaVersion":2},"datasetVersion":"2026-08-25T16:17:27.014Z"}