diff --git a/src/IdLE.Core/IdLE.Core.psd1 b/src/IdLE.Core/IdLE.Core.psd1
index 7ff00c9b..48385a27 100644
--- a/src/IdLE.Core/IdLE.Core.psd1
+++ b/src/IdLE.Core/IdLE.Core.psd1
@@ -13,7 +13,9 @@
         'New-IdlePlanObject',
         'Invoke-IdlePlanObject',
         'Export-IdlePlanObject',
-        'New-IdleAuthSessionBroker'
+        'New-IdleAuthSessionBroker',
+        'Invoke-IdleProviderMethod',
+        'Test-IdleProviderMethodParameter'
     )
     CmdletsToExport   = @()
     AliasesToExport   = @()
diff --git a/src/IdLE.Core/IdLE.Core.psm1 b/src/IdLE.Core/IdLE.Core.psm1
index 0575360c..06956a7b 100644
--- a/src/IdLE.Core/IdLE.Core.psm1
+++ b/src/IdLE.Core/IdLE.Core.psm1
@@ -45,5 +45,7 @@ Export-ModuleMember -Function @(
     'New-IdlePlanObject',
     'Invoke-IdlePlanObject',
     'Export-IdlePlanObject',
-    'New-IdleAuthSessionBroker'
+    'New-IdleAuthSessionBroker',
+    'Invoke-IdleProviderMethod',
+    'Test-IdleProviderMethodParameter'
 ) -Alias @()
diff --git a/src/IdLE.Steps.Common/Private/Invoke-IdleProviderMethod.ps1 b/src/IdLE.Core/Public/Invoke-IdleProviderMethod.ps1
similarity index 58%
rename from src/IdLE.Steps.Common/Private/Invoke-IdleProviderMethod.ps1
rename to src/IdLE.Core/Public/Invoke-IdleProviderMethod.ps1
index a8d28431..e750241a 100644
--- a/src/IdLE.Steps.Common/Private/Invoke-IdleProviderMethod.ps1
+++ b/src/IdLE.Core/Public/Invoke-IdleProviderMethod.ps1
@@ -2,6 +2,49 @@
 # Handles auth session acquisition, parameter detection, and backwards-compatible fallback.
 
 function Invoke-IdleProviderMethod {
+    <#
+    .SYNOPSIS
+    Invokes a provider method with optional AuthSession support.
+
+    .DESCRIPTION
+    This is a foundational helper for step implementations that need to invoke
+    provider methods with proper authentication handling.
+
+    Key features:
+    - Acquires auth sessions via Context.AcquireAuthSession when With.AuthSessionName is present
+    - Detects whether provider methods support AuthSession parameter (backwards compatible)
+    - Passes AuthSession to provider methods that support it
+    - Validates provider existence and method implementation
+
+    .PARAMETER Context
+    Execution context created by IdLE.Core. Must contain Providers hashtable and
+    AcquireAuthSession method.
+
+    .PARAMETER With
+    Step configuration hashtable. May contain:
+    - AuthSessionName (string): Name of auth session to acquire
+    - AuthSessionOptions (hashtable): Optional session selection options
+
+    .PARAMETER ProviderAlias
+    Key to look up the provider in Context.Providers.
+
+    .PARAMETER MethodName
+    Name of the provider method to invoke.
+
+    .PARAMETER MethodArguments
+    Array of arguments to pass to the provider method (excluding AuthSession).
+
+    .OUTPUTS
+    Object returned by the provider method.
+
+    .EXAMPLE
+    $result = Invoke-IdleProviderMethod `
+        -Context $Context `
+        -With @{ AuthSessionName = 'ExchangeOnline' } `
+        -ProviderAlias 'ExchangeOnline' `
+        -MethodName 'EnsureMailboxType' `
+        -MethodArguments @('user@contoso.com', 'Shared')
+    #>
     [CmdletBinding()]
     param(
         [Parameter(Mandatory)]
diff --git a/src/IdLE.Steps.Common/Private/Test-IdleProviderMethodParameter.ps1 b/src/IdLE.Core/Public/Test-IdleProviderMethodParameter.ps1
similarity index 66%
rename from src/IdLE.Steps.Common/Private/Test-IdleProviderMethodParameter.ps1
rename to src/IdLE.Core/Public/Test-IdleProviderMethodParameter.ps1
index 870217a6..434a6b61 100644
--- a/src/IdLE.Steps.Common/Private/Test-IdleProviderMethodParameter.ps1
+++ b/src/IdLE.Core/Public/Test-IdleProviderMethodParameter.ps1
@@ -2,6 +2,40 @@
 # Supports ScriptMethod (AST inspection) and compiled methods (reflection).
 
 function Test-IdleProviderMethodParameter {
+    <#
+    .SYNOPSIS
+    Tests whether a provider method supports a given parameter.
+
+    .DESCRIPTION
+    This is a foundational helper that inspects provider method signatures to determine
+    if they accept a specific parameter (e.g., AuthSession).
+
+    Supports:
+    - ScriptMethod (AST inspection via PowerShell parser)
+    - Compiled methods (reflection-based inspection)
+
+    Used by Invoke-IdleProviderMethod to detect backwards-compatible method signatures.
+
+    .PARAMETER ProviderMethod
+    PSMethodInfo object representing the provider method to inspect.
+
+    .PARAMETER ParameterName
+    Name of the parameter to check for (e.g., 'AuthSession').
+
+    .OUTPUTS
+    Boolean. True if the method accepts the specified parameter, False otherwise.
+
+    .EXAMPLE
+    $provider = [pscustomobject]@{}
+    $provider | Add-Member -MemberType ScriptMethod -Name MyMethod -Value {
+        param($Arg1, $AuthSession)
+        # ...
+    }
+
+    $method = $provider.PSObject.Methods['MyMethod']
+    Test-IdleProviderMethodParameter -ProviderMethod $method -ParameterName 'AuthSession'
+    # Returns: True
+    #>
     [CmdletBinding()]
     [OutputType([bool])]
     param(
diff --git a/src/IdLE.Steps.Common/IdLE.Steps.Common.psd1 b/src/IdLE.Steps.Common/IdLE.Steps.Common.psd1
index 6958b740..9526e698 100644
--- a/src/IdLE.Steps.Common/IdLE.Steps.Common.psd1
+++ b/src/IdLE.Steps.Common/IdLE.Steps.Common.psd1
@@ -7,6 +7,8 @@
     Description       = 'Common built-in steps for IdLE.'
     PowerShellVersion = '7.0'
 
+    RequiredModules   = @('IdLE.Core')
+
     FunctionsToExport = @(
         'Get-IdleStepMetadataCatalog',
         'Invoke-IdleStepEmitEvent',
diff --git a/src/IdLE.Steps.Common/Public/Get-IdleStepMetadataCatalog.ps1 b/src/IdLE.Steps.Common/Public/Get-IdleStepMetadataCatalog.ps1
index 2f266676..42f2818a 100644
--- a/src/IdLE.Steps.Common/Public/Get-IdleStepMetadataCatalog.ps1
+++ b/src/IdLE.Steps.Common/Public/Get-IdleStepMetadataCatalog.ps1
@@ -1,7 +1,7 @@
 function Get-IdleStepMetadataCatalog {
     <#
     .SYNOPSIS
-    Returns metadata for built-in IdLE step types.
+    Returns metadata for common built-in IdLE step types.
 
     .DESCRIPTION
     This function provides a metadata catalog mapping Step.Type to metadata objects.
@@ -16,7 +16,7 @@ function Get-IdleStepMetadataCatalog {
     .EXAMPLE
     $metadata = Get-IdleStepMetadataCatalog
     $metadata['IdLE.Step.DisableIdentity'].RequiredCapabilities
-    # Returns: @('IdLE.Identity.Disable', 'IdLE.Identity.Read')
+    # Returns: @('IdLE.Identity.Disable')
     #>
     [CmdletBinding()]
     param()
diff --git a/src/IdLE.Steps.DirectorySync/IdLE.Steps.DirectorySync.psd1 b/src/IdLE.Steps.DirectorySync/IdLE.Steps.DirectorySync.psd1
index 6189f3ef..ed07b09c 100644
--- a/src/IdLE.Steps.DirectorySync/IdLE.Steps.DirectorySync.psd1
+++ b/src/IdLE.Steps.DirectorySync/IdLE.Steps.DirectorySync.psd1
@@ -8,6 +8,7 @@
     PowerShellVersion = '7.0'
 
     RequiredModules   = @(
+        'IdLE.Core',
         'IdLE.Steps.Common'
     )
 
diff --git a/src/IdLE.Steps.Mailbox/IdLE.Steps.Mailbox.psd1 b/src/IdLE.Steps.Mailbox/IdLE.Steps.Mailbox.psd1
index 7572d6d4..b07d5d3d 100644
--- a/src/IdLE.Steps.Mailbox/IdLE.Steps.Mailbox.psd1
+++ b/src/IdLE.Steps.Mailbox/IdLE.Steps.Mailbox.psd1
@@ -7,7 +7,7 @@
     Description       = 'Provider-agnostic mailbox step pack for IdLE.'
     PowerShellVersion = '7.0'
 
-    RequiredModules   = @('IdLE.Steps.Common')
+    RequiredModules   = @('IdLE.Core', 'IdLE.Steps.Common')
 
     FunctionsToExport = @(
         'Get-IdleStepMetadataCatalog',