# Maester Test Expert

> Write, validate, and document Maester security checks for Microsoft 365 tenants. Use when asked to create, edit, review, or debug a Maester Pester test file, its companion markdown documentation, or its tagging. Covers Graph API data retrieval, Add-MtTestResultDetail formatting, the tagging taxonomy (CIS, CISA, EIDSCA, ORCA, MT), helper function patterns, remediation guidance, Entra ID, Exchange, SharePoint, Teams, Defender, Conditional Access, and the validation checklist for new checks.

- Skill: `maester365/maester-test-expert` (Agent Skill)
- Install (CLI): `npx skillmds@latest add maester365/maester-test-expert`
- Raw SKILL.md: https://api.skillmd.com/api/skills/maester365/maester-test-expert/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Security
- Author: maester365 (https://skillmd.com/u/maester365)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/maester365/maester-test-expert

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# Maester Test Expert (pointer)

The canonical skill content lives at [`.github/skills/maester-test-expert/SKILL.md`](../../../.github/skills/maester-test-expert/SKILL.md).

**Read that file and follow it** for all Maester check authoring: file layout, test/helper/markdown/website templates, the tagging taxonomy, the validation checklist, and remediation patterns.

This pointer file exists so Claude Code can auto-suggest the Maester check workflow when it detects a relevant context. The full content is shared with the Copilot skill at the same path under `.github/skills/`, making `.github/skills/maester-test-expert/SKILL.md` the single source of truth for both tools.