Function validateRequiredParametersAfterMerge

apps/sim/tools/utils.ts:161–189

(
  toolId: string,
  tool: ToolConfig | undefined,
  params: Record<string, any>,
  parameterNameMap?: Record<string, string>
)

 * user-or-llm parameters are present after the merge process
 */
export function validateRequiredParametersAfterMerge(
  toolId: string,
  tool: ToolConfig | undefined,
  params: Record<string, any>,
  parameterNameMap?: Record<string, string>
): void {
  if (!tool) {
    throw new Error(`Tool not found: ${toolId}`)
  }

  // Validate all required user-or-llm parameters after merge
  // user-only parameters should have been validated earlier during serialization
  for (const [paramName, paramConfig] of Object.entries(tool.params)) {
    if (
      (paramConfig as any).visibility === 'user-or-llm' &&
      paramConfig.required &&
      (!(paramName in params) ||
        params[paramName] === null ||
        params[paramName] === undefined ||
        params[paramName] === '')
    ) {
      // Create a more user-friendly error message
      const toolName = tool.name || toolId
      const friendlyParamName =
        parameterNameMap?.[paramName] || formatParameterNameForError(paramName)
      throw new Error(`${friendlyParamName} is required for ${toolName}`)
    }
  }
}

/**
 * Creates parameter schema from custom tool schema