xai-org/x-algorithm · error · ConfigFailure

TypeName '$typename' does not match $typeNameRegex.

Error message

TypeName '$typename' does not match $typeNameRegex.

What it means

Type names in BotMaker configs must match typeNameRegex, defined in ServiceConfigs as ^[A-Z][a-zA-Z0-9_]*$ (UpperCamelCase alphanumerics/underscore). validateTypeName throws ConfigFailure when a generated or declared type name violates this.

Source

Thrown at botmaker/src/scala/com/twitter/botmaker/runtime/config/ServiceConfigs.scala:105

    if (endpoint != "ScribeClient"
      && endpointRegex.findFirstIn(endpoint).isEmpty) {
      throw ConfigFailure(
        s"Endpoint '$endpoint' does not match $endpointRegex."
      )
    }
  }

  def validateDataset(dataset: String): Unit = {
    if (datasetRegex.findFirstIn(dataset).isEmpty) {
      throw ConfigFailure(
        s"Dataset '$dataset' does not match $datasetRegex."
      )
    }
  }

  def validateTypeName(typename: String): Unit = {
    if (typeNameRegex.findFirstIn(typename).isEmpty) {
      throw ConfigFailure(
        s"TypeName '$typename' does not match $typeNameRegex."
      )
    }
  }

  def validateTeamName(teamName: String): Unit = {
    if (teamNameRegex.findFirstIn(teamName).isEmpty) {
      throw ConfigFailure(
        s"Team name '$teamName' does not match $teamNameRegex."
      )
    }
  }

  def validateClassName(className: String): Unit = {
    ClassCache.forName(className)
  }

  override def addConfig(

View on GitHub (pinned to 24c60942c5)

Solutions

1. Capitalize and sanitize: name must match ^[A-Z][a-zA-Z0-9_]*$
2. Apply a toUpperCamelCase converter to generated type names before registration
3. Unit-test the name generator against typeNameRegex

Example fix

// before
typeName("content_scan_v2")

// after
typeName("ContentScanV2")

TYPE_NAME_RE = re.compile(r'^[A-Z][a-zA-Z0-9_]*$')
def validTypeName(n): return bool(TYPE_NAME_RE.match(n))

def isValidTypeName(name: str) -> bool:
    return bool(re.match(r'^[A-Z][a-zA-Z0-9_]*$', name))

When it happens

Trigger: Registering a config containing a type whose name does not start with an uppercase letter or contains characters outside [a-zA-Z0-9_] — e.g. "contentScan", "Content-Scan", "2ndType", or an empty name.

Common situations: Autogenerating type names from lowercase dataset/field names without capitalizing; pluralization or prefixing logic producing leading digits or symbols.

Related errors

• Event type '$eventType' does not match $eventTypeRegex.
• Field name '$fieldName' does not match $fieldNameRegex.
• Func name '$funcName' does not match $funcNameRegex.
• Endpoint '$endpoint' does not match $endpointRegex.
• Dataset '$dataset' does not match $datasetRegex.

AI-assisted analysis of xai-org/x-algorithm@24c60942c5 (2026-08-28). Data as JSON: /api/errors/10f5267a31c34c72. Report an issue: GitHub.