gemini-agent-skills: Skill for Claude Code

.gemini/skills/m365-admin/SKILL.md

m365-admin is a skill for Claude Code, Gemini CLI from saeed-vayghan/gemini-agent-skills. It costs 29 tokens per session (331 once invoked), scanned A, original, MIT.

A guide for administering Microsoft 365 services such as Exchange Online, Teams, SharePoint, licensing, and Microsoft Graph.

In plain words
What is it for?
Use it to provision mailboxes, create Teams, manage SharePoint sites, audit external sharing, assign or remove licenses, and automate Microsoft cloud tasks with Graph PowerShell.
Why use it?
It helps automate repetitive administration and check that identity, sharing, access, licensing, and compliance changes are safe and properly scoped.

Skill for Claude CodeGemini CLI

Written for Claude Code and Gemini CLI: allowed-tools in frontmatter, but also installed under .gemini/.

This is saeed-vayghan/gemini-agent-skills's own configuration. It tells Claude Code and Gemini CLI how to work on gemini-agent-skills itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything gemini-agent-skills configures →

Reuse

Borrowing it

Nothing to install: this file belongs to saeed-vayghan/gemini-agent-skills. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/saeed-vayghan/gemini-agent-skills/master/.gemini/skills/m365-admin/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/saeed-vayghan/gemini-agent-skills

Made for: Claude Code, Gemini CLI.

Wrote this? Show the measurements

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README.md
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Per session 29 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 331 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 $0.00029 $0.00331
Opus 5 $0.00015 $0.00166
Sonnet 5 $0.00006 $0.00066
Haiku 4.5 $0.00003 $0.00033

Measured 7d ago against content hash be8e97714df4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, 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 7d 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.

.gemini/skills/m365-admin/SKILL.md · 47 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. 7d ago First seen · 47 lines · 29 tokens per session scan A be8e97714df4

Subscribe to this mod's changes

m365-admin is a skill published in the GitHub repository saeed-vayghan/gemini-agent-skills (34 stars, last pushed 7mo ago), licensed MIT. It adds 29 tokens to every session and 331 once invoked, about $0.0001 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.

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