{"record":{"id":"7afe18f84941ffed","repo":"googleapis/mcp-toolbox","slug":"tool-type-q-already-registered-7afe18","errorCode":null,"errorMessage":"tool type %q already registered","messagePattern":"tool type %q already registered","errorType":"panic","errorClass":null,"httpStatus":null,"severity":"error","filePath":"internal/tools/serverlessspark/serverlesssparkcreatepysparkbatch/serverlesssparkcreatepysparkbatch.go","lineNumber":32,"sourceCode":"\npackage serverlesssparkcreatepysparkbatch\n\nimport (\n\t\"context\"\n\t\"fmt\"\n\n\tdataproc \"cloud.google.com/go/dataproc/v2/apiv1/dataprocpb\"\n\t\"github.com/goccy/go-yaml\"\n\t\"github.com/googleapis/mcp-toolbox/internal/tools\"\n\t\"github.com/googleapis/mcp-toolbox/internal/tools/serverlessspark/createbatch\"\n\t\"github.com/googleapis/mcp-toolbox/internal/util/parameters\"\n)\n\nconst resourceType = \"serverless-spark-create-pyspark-batch\"\n\nfunc init() {\n\tif !tools.Register(resourceType, newConfig) {\n\t\tpanic(fmt.Sprintf(\"tool type %q already registered\", resourceType))\n\t}\n}\n\nfunc newConfig(ctx context.Context, name string, decoder *yaml.Decoder) (tools.ToolConfig, error) {\n\tbaseCfg, err := createbatch.NewConfig(ctx, name, decoder)\n\tif err != nil {\n\t\treturn nil, err\n\t}\n\treturn Config{Config: baseCfg}, nil\n}\n\ntype Config struct {\n\tcreatebatch.Config\n\n\tScopesRequired []string `yaml:\"scopesRequired\"`\n}\n\n// validate interface","sourceCodeStart":14,"sourceCodeEnd":50,"githubUrl":"https://github.com/googleapis/mcp-toolbox/blob/8cc6e09de2ad7b8bffc77751799585a1401a48eb/internal/tools/serverlessspark/serverlesssparkcreatepysparkbatch/serverlesssparkcreatepysparkbatch.go#L14-L50","documentation":"The package's init() registers the 'serverless-spark-create-pyspark-batch' tool type in the global registry and panics if tools.Register returns false, meaning the type string was already claimed. This is a duplicate-registration guard for programming errors (e.g. a vendored or duplicated package copy linked into the binary), not a user config issue.","triggerScenarios":"Thrown at internal/tools/serverlessspark/serverlesssparkcreatepysparkbatch/serverlesssparkcreatepysparkbatch.go:32 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Ensure the package is not imported twice under different paths (e.g. vendored and module copies)","Rename the conflicting resourceType constant if two distinct tools share it","Clean go.mod/go.sum and rebuild to eliminate stale duplicate dependencies"],"exampleFix":null,"handlingStrategy":"validation","validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"8cc6e09de2ad7b8bffc77751799585a1401a48eb","analyzedAt":"2026-09-05T01:10:36.887Z","contentChangedAt":"2026-09-05T01:10:36.887Z","schemaVersion":2},"datasetVersion":"2026-09-08T10:18:20.063Z"}