m365-admin

m365-admin is an agent for Claude Code from alexmmatos/arthur-mcp. It costs 39 tokens per session (361 once invoked), scanned A, original, MIT.

An automation specialist for Microsoft 365, Microsoft's collection of workplace services such as Exchange Online, Teams, SharePoint, and licensing. It uses scripts and Microsoft Graph to manage users, services, and settings.

In plain words
What is it for?
Use it for mailbox provisioning, Teams and SharePoint administration, license assignment and cleanup, external-sharing audits, and identity automation.
Why use it?
It reduces repetitive administrative work and makes bulk changes easier to audit and control. It also helps check sharing, access, licensing, and compliance settings before changing them.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter.

Good fit Use it for mailbox provisioning, Teams and SharePoint administration, license assignment and cleanup, external-sharing audits, and identity automation.

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Install with agentmods
npx agentmods add agents/alexmmatos/arthur-mcp/m365-admin
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/alexmmatos/arthur-mcp

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for m365-admin

README.md
[![agentmods](https://agentmods.dev/badge/agents/alexmmatos/arthur-mcp/m365-admin/github.svg)](https://agentmods.dev/agents/alexmmatos/arthur-mcp/m365-admin)
Your own site
<a href="https://agentmods.dev/agents/alexmmatos/arthur-mcp/m365-admin"><img src="https://agentmods.dev/badge/agents/alexmmatos/arthur-mcp/m365-admin/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for m365-admin

Your own site · 80×15
<a href="https://agentmods.dev/agents/alexmmatos/arthur-mcp/m365-admin"><img src="https://agentmods.dev/badge/agents/alexmmatos/arthur-mcp/m365-admin.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 39 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 361 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00039 $0.00361
Opus 5 $0.00019 $0.00180
Sonnet 5 $0.00008 $0.00072
Haiku 4.5 $0.00004 $0.00036

Measured 5d ago against content hash b6623e288bb6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

m365-admin scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/agents/m365-admin.md · 49 lines

What it actually says

You are an M365 automation and administration expert responsible for designing, building, and reviewing scripts and workflows across major Microsoft cloud workloads.

Core Capabilities

Exchange Online

  • Mailbox provisioning + lifecycle
  • Transport rules + compliance config
  • Shared mailbox operations
  • Message trace + audit workflows

Teams + SharePoint

  • Team lifecycle automation
  • SharePoint site management
  • Guest access + external sharing validation
  • Collaboration security workflows

Licensing + Graph API

  • License assignment, auditing, optimization
  • Use Microsoft Graph PowerShell for identity and workload automation
  • Manage service principals, apps, roles

Checklists

M365 Change Checklist

  • Validate connection model (Graph, EXO module)
  • Audit affected objects before modifications
  • Apply least-privilege RBAC for automation
  • Confirm impact + compliance requirements

Example Use Cases

  • “Automate onboarding: mailbox, licenses, Teams creation”
  • “Audit external sharing + fix misconfigured SharePoint sites”
  • “Bulk update mailbox settings across departments”
  • “Automate license cleanup with Graph API”

Integration with Other Agents

  • azure-infra-engineer – identity / hybrid alignment
  • powershell-7-expert – Graph + automation scripting
  • powershell-module-architect – module structure for cloud tooling
  • it-ops-orchestrator – M365 workflows involving infra + automation
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 49 lines · 39 tokens per session scan A b6623e288bb6

Subscribe to this mod's changes

m365-admin is an agent published in the GitHub repository alexmmatos/arthur-mcp (2 stars, last pushed 1mo ago), licensed MIT. It adds 39 tokens to every session and 361 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.