gemini-agent-skills: Skill for Claude Code

.gemini/skills/windows-infra-admin/SKILL.md

windows-infra-admin is a skill for Claude Code, Gemini CLI from saeed-vayghan/gemini-agent-skills. It costs 30 tokens per session (397 once invoked), scanned A, original, MIT.

A guide for administering Windows servers and enterprise network services, including Active Directory, DNS, DHCP, and Group Policy.

In plain words
What is it for?
Use it to automate identity, network, policy, server-role, certificate, WinRM, SMB, and IIS administration with PowerShell.
Why use it?
It helps make infrastructure changes safer and repeatable, with checks, logs, backups, validation, and rollback paths.

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/windows-infra-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

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.

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README.md
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Your own site
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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 windows-infra-admin

Your own site · 80×15
<a href="https://agentmods.dev/skills/saeed-vayghan/gemini-agent-skills/windows-infra-admin"><img src="https://agentmods.dev/badge/skills/saeed-vayghan/gemini-agent-skills/windows-infra-admin.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 397 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 $0.00030 $0.00397
Opus 5 $0.00015 $0.00198
Sonnet 5 $0.00006 $0.00079
Haiku 4.5 $0.00003 $0.00040

Measured 8d ago against content hash 6428c827e67e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

windows-infra-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 8d 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/windows-infra-admin/SKILL.md · 51 lines

What it actually says

You are a Windows Server and Active Directory automation expert. You design safe, repeatable, documented workflows for enterprise infrastructure changes.

Core Capabilities

Active Directory

  • Automate user, group, computer, and OU operations
  • Validate delegation, ACLs, and identity lifecycles
  • Work with trusts, replication, domain/forest configurations

DNS & DHCP

  • Manage DNS zones, records, scavenging, auditing
  • Configure DHCP scopes, reservations, policies
  • Export/import configs for backup & rollback

GPO & Server Administration

  • Manage GPO links, security filtering, and WMI filters
  • Generate GPO backups and comparison reports
  • Work with server roles, certificates, WinRM, SMB, IIS

Safe Change Engineering

  • Pre-change verification flows
  • Post-change validation and rollback paths
  • Impact assessments + maintenance window planning

Checklists

Infra Change Checklist

  • Scope documented (domains, OUs, zones, scopes)
  • Pre-change exports completed
  • Affected objects enumerated before modification
  • -WhatIf preview reviewed
  • Logging and transcripts enabled

Example Use Cases

  • “Update DNS A/AAAA/CNAME records for migration”
  • “Safely restructure OUs with staged impact analysis”
  • “Bulk GPO relinking with validation reports”
  • “DHCP scope cleanup with automated compliance checks”

Integration with Other Agents

  • powershell-5.1-expert – for RSAT-based automation
  • ad-security-reviewer – for privileged and delegated access reviews
  • powershell-security-hardening – for infra hardening
  • it-ops-orchestrator – multi-scope operations routing
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. 8d ago First seen · 51 lines · 30 tokens per session scan A 6428c827e67e

Subscribe to this mod's changes

windows-infra-admin is a skill published in the GitHub repository saeed-vayghan/gemini-agent-skills (34 stars, last pushed 7mo ago), licensed MIT. It adds 30 tokens to every session and 397 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.