ms365-admin

name	ms365-admin
description	Use when managing Microsoft 365 tenants via Graph API. Covers user provisioning, license assignment, group management, Exchange Online, SharePoint, Teams admin, MFA setup, and compliance policies.
user-invocable	true
disable-model-invocation	true
context	fork
allowed-tools	["Read","Write","Bash"]
argument-hint	user email or admin action
hooks	{"PreToolUse":[{"matcher":"Bash","hooks":"[Truncated]"}]}

Microsoft 365 Administration

Overview

Comprehensive Microsoft 365 administration patterns using Microsoft Graph API and PowerShell for user management, licensing, Teams, SharePoint, and Exchange.

User Provisioning

Create User via Graph API

# Create new user
curl -X POST https://graph.microsoft.com/v1.0/users \
  -H "Authorization: Bearer $ACCESS_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "accountEnabled": true,
    "displayName": "John Smith",
    "mailNickname": "jsmith",
    "userPrincipalName": "[e-mail]",
    "passwordProfile": {
      "forceChangePasswordNextSignIn": true,
      "password": "TempP@ssw0rd!"
    },
    "usageLocation": "US",
    "department": "Engineering",
    "jobTitle": "Software Engineer",
    "officeLocation": "Building A"
  }'

PowerShell User Management

# Connect to Microsoft Graph
Connect-MgGraph -Scopes "User.ReadWrite.All", "Directory.ReadWrite.All"

# Create user
$PasswordProfile = @{
    Password = "TempP@ssw0rd!"
    ForceChangePasswordNextSignIn = $true
}

New-MgUser -DisplayName "John Smith" `
    -MailNickname "jsmith" `
    -UserPrincipalName "[e-mail]" `
    -PasswordProfile $PasswordProfile `
    -AccountEnabled `
    -UsageLocation "US" `
    -Department "Engineering"

# Bulk user creation from CSV
$users = Import-Csv -Path "new-users.csv"
foreach ($user in $users) {
    $params = @{
        DisplayName = $user.DisplayName
        UserPrincipalName = $user.UPN
        MailNickname = $user.MailNickname
        PasswordProfile = @{
            Password = $user.TempPassword
            ForceChangePasswordNextSignIn = $true
        }
        AccountEnabled = $true
        UsageLocation = $user.Location
        Department = $user.Department
        JobTitle = $user.JobTitle
    }
    New-MgUser @params
    Write-Host "Created: $($user.DisplayName)"
}

License Management

Assign Licenses

# Get available licenses
Get-MgSubscribedSku | Select-Object SkuPartNumber, ConsumedUnits, PrepaidUnits

# Assign E3 license to user
$E3Sku = Get-MgSubscribedSku | Where-Object { $_.SkuPartNumber -eq "ENTERPRISEPACK" }

Set-MgUserLicense -UserId "[e-mail]" `
    -AddLicenses @(@{SkuId = $E3Sku.SkuId}) `
    -RemoveLicenses @()

# Assign license with disabled plans
Set-MgUserLicense -UserId "[e-mail]" `
    -AddLicenses @(@{
        SkuId = $E3Sku.SkuId
        DisabledPlans = @("YAMMER_ENTERPRISE", "SWAY")
    }) `
    -RemoveLicenses @()

# Bulk license assignment
$users = Get-MgUser -Filter "department eq 'Engineering'" -All
foreach ($user in $users) {
    Set-MgUserLicense -UserId $user.Id `
        -AddLicenses @(@{SkuId = $E3Sku.SkuId}) `
        -RemoveLicenses @()
}

Teams Management

Create Team

# Create team from group
curl -X POST "https://graph.microsoft.com/v1.0/teams" \
  -H "Authorization: Bearer $ACCESS_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "[e-mail]": "https://graph.microsoft.com/v1.0/teamsTemplates('\''standard'\'')",
    "displayName": "Engineering Team",
    "description": "Engineering department team",
    "members": [
      {
        "@odata.type": "#microsoft.graph.aadUserConversationMember",
        "roles": ["owner"],
        "[e-mail]": "https://graph.microsoft.com/v1.0/users('\''user-id'\'')"
      }
    ],
    "channels": [
      { "displayName": "Announcements", "isFavoriteByDefault": true },
      { "displayName": "Development", "isFavoriteByDefault": true },
      { "displayName": "DevOps", "isFavoriteByDefault": true }
    ]
  }'

SharePoint Administration

# Connect to SharePoint
Connect-PnPOnline -Url "https://contoso.sharepoint.com" -Interactive

# Create new site
New-PnPSite -Type TeamSite -Title "Engineering Docs" -Alias "engineering-docs"

# Set permissions
Set-PnPGroupPermissions -Identity "Engineering Docs Members" -AddRole "Edit"

# Create document library
New-PnPList -Title "Technical Documentation" -Template DocumentLibrary

Security & Compliance

Conditional Access

# Require MFA for all users
$params = @{
    DisplayName = "Require MFA for all users"
    State = "enabled"
    Conditions = @{
        Users = @{ IncludeUsers = @("All") }
        Applications = @{ IncludeApplications = @("All") }
    }
    GrantControls = @{
        BuiltInControls = @("mfa")
        Operator = "OR"
    }
}
New-MgIdentityConditionalAccessPolicy @params

Email Operations (MCP)

When the MS365 MCP server is configured, use MCP tools for email operations instead of raw Graph API calls.

Send Email

Use mcp__ms365__send-shared-mailbox-mail with userId set to the sender's email:

{
  "userId": "[e-mail]",
  "body": {
    "Message": {
      "subject": "Subject line",
      "body": {
        "contentType": "html",
        "content": "<p>Email body in HTML</p>"
      },
      "toRecipients": [
        { "emailAddress": { "address": "[e-mail]", "name": "Recipient Name" } }
      ],
      "ccRecipients": [],
      "bccRecipients": []
    },
    "SaveToSentItems" 
  

List Emails

Use mcp__ms365__list-mail-messages with $select to limit fields:

select: ["id", "subject", "from", "toRecipients", "receivedDateTime", "bodyPreview", "isRead"]
top: 10

Search Emails

Use $search with KQL syntax (wrap in double quotes):

search: "from:[e-mail]"
search: "subject:meeting AND hasAttachments:true"

User Management (MCP)

List Users

Use mcp__ms365__list-users with $top, $select, $filter, or $search:

top: 10
select: ["displayName", "mail", "userPrincipalName", "jobTitle", "department", "assignedLicenses"]

Search Users

Requires ConsistencyLevel: eventual:

ConsistencyLevel: "eventual"
search: "\"displayName:john\""

Best Practices

1. Automated provisioning — Use Graph API for consistent user onboarding
2. Group-based licensing — Assign licenses via groups, not individuals
3. Least privilege — Assign minimal admin roles, use PIM for elevation
4. MFA enforcement — Require MFA for all users via Conditional Access
5. Naming conventions — Standardize group, team, and site naming
6. Guest access — Configure policy for external collaboration
7. Data governance — Configure retention policies and sensitivity labels
8. Monitoring — Review sign-in logs and audit logs regularly
9. Backup — Third-party backup for Exchange, SharePoint, OneDrive, Teams
10. Documentation — Maintain runbooks for common admin tasks