security-investigator: Skill for Claude Code

.github/skills/identity-posture/SKILL.md

identity-posture is a skill for Claude Code, Codex from SCStelz/security-investigator. It costs 150 tokens per session (13,828 once invoked), scanned A, original, MIT.

An identity-security audit that reviews accounts across providers such as Entra ID, Active Directory, Okta, and CyberArk.

In plain words
What is it for?
Use it to inventory identities, examine privileged accounts, find inactive or deleted accounts with permissions, review password settings, and assess identity sprawl.
Why use it?
It brings account activity, privileges, password settings, and stale or deleted accounts into one posture review.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

This is SCStelz/security-investigator's own configuration. It tells Claude Code and Codex how to work on security-investigator 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 security-investigator configures →

Reuse

Borrowing it

Nothing to install: this file belongs to SCStelz/security-investigator. 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/SCStelz/security-investigator/main/.github/skills/identity-posture/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/SCStelz/security-investigator

Made for: Claude Code, Codex.

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 identity-posture

README.md
[![agentmods](https://agentmods.dev/badge/skills/scstelz/security-investigator/identity-posture/github.svg)](https://agentmods.dev/skills/scstelz/security-investigator/identity-posture)
Your own site
<a href="https://agentmods.dev/skills/scstelz/security-investigator/identity-posture"><img src="https://agentmods.dev/badge/skills/scstelz/security-investigator/identity-posture/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 identity-posture

Your own site · 80×15
<a href="https://agentmods.dev/skills/scstelz/security-investigator/identity-posture"><img src="https://agentmods.dev/badge/skills/scstelz/security-investigator/identity-posture.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 150 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 13,828 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Agent Snooping · line 1004
    Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.
    Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
How audits are shown
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 $0.00150 $0.13828
Opus 5 $0.00075 $0.06914
Sonnet 5 $0.00030 $0.02766
Haiku 4.5 $0.00015 $0.01383

Measured 12d ago against content hash 8c57e8df6f7b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

identity-posture 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 12d 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.

.github/skills/identity-posture/SKILL.md · 1,127 lines

How it starts

The opening of the file, as written. The whole thing — 1,127 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Identity Security Posture — Instructions

Purpose

This skill audits the identity security posture across your organization using the IdentityAccountInfo table in Microsoft Defender XDR Advanced Hunting, enriched with IdentityInfo and IdentityLogonEvents for password policy and logon activity context.

Modern organizations use multiple identity providers (Entra ID, Active Directory, Okta, SailPoint, CyberArk, Ping, etc.). IdentityAccountInfo is the only table that provides a unified identity graph across these providers, linking accounts to a single IdentityId. This skill systematically evaluates the security posture of that identity fabric.

What this skill covers:

Domain Key Questions Answered
🔍 Identity Inventory How many accounts exist? Across which providers? What types and statuses?
👑 Privileged Account Audit Who holds high-privilege roles? Across which providers? Are they permanent?
🗑️ Stale & Deleted Account Hygiene Which enabled accounts have no logon activity? Do deleted accounts retain permissions?
🔑 Password Posture Password age distribution, PasswordNeverExpires/PasswordNotRequired flags (AD accounts via IdentityInfo join)
🟠 Risk Distribution How are identity risk levels distributed? Which high-risk accounts are still active?
🔗 Multi-Provider Identity Linking Which identities span multiple IdPs? Are there status mismatches across providers?
🏷️ Sensitive & Honeytoken Accounts Which accounts are MDI-tagged? Are sensitive accounts properly protected?
🏢 Organizational Context Account distribution by department, service account inventory

Primary data source: IdentityAccountInfo table (Advanced Hunting) — currently in Preview.

Enrichment tables:

  • IdentityInfo — Adds UserAccountControl (PasswordNeverExpires, PasswordNotRequired), DistinguishedName, RiskLevel, BlastRadius, PrivilegedEntraPimRoles (Preview)
  • IdentityLogonEvents — Last logon timestamps across AD, Entra, Okta, SailPoint, M365 apps
  • SigninLogs — Last Entra ID sign-in for stale account detection (via Data Lake for 90d+ lookback)

Read the full file on GitHub · 1,127 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 12d ago First seen · 1,127 lines · 150 tokens per session scan A 8c57e8df6f7b

Subscribe to this mod's changes

identity-posture is a skill published in the GitHub repository SCStelz/security-investigator (245 stars, last pushed 4d ago), licensed MIT. It adds 150 tokens to every session and 13,828 once invoked, about $0.0007 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 2026-08-30.

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