rbac-audit

rbac-audit is a skill for Claude Code, Codex from microsoft/sre-agent. It costs 100 tokens per session (1,865 once invoked), scanned A, original, MIT.

A read-only review of who has access to a specific Azure resource group and how that access is actually used. RBAC means role-based access control, which assigns permissions through roles.

In plain words
What is it for?
Use it for a recurring least-privilege review of Azure role assignments, identities, groups, service accounts, and their activity-log usage.
Why use it?
It helps find permissions that are too broad, assigned outside normal controls, or left unused, so a human can decide whether to remove them.

Skill for Claude CodeCodex ✓ vendor

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

Good fit Use it for a recurring least-privilege review of Azure role assignments, identities, groups, service accounts, and their activity-log usage.

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Install with agentmods
npx agentmods add skills/microsoft/sre-agent/rbac-audit
About the project

microsoft/sre-agent is the community repository for Azure SRE Agent, an AI assistant for diagnosing and resolving production problems and reducing routine operations work. It is for teams working on service reliability and includes documentation, discussions, videos, and hands-on labs for using the product. The catalogue skills relate to the agent's official plugins and resources.

microsoft/sre-agent · 179 stars · on GitHub

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.

Any agent
npx skills add microsoft/sre-agent --skill rbac-audit
Clone the repo
git clone --depth 1 https://github.com/microsoft/sre-agent

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 rbac-audit

README.md
[![agentmods](https://agentmods.dev/badge/skills/microsoft/sre-agent/rbac-audit/github.svg)](https://agentmods.dev/skills/microsoft/sre-agent/rbac-audit)
Your own site
<a href="https://agentmods.dev/skills/microsoft/sre-agent/rbac-audit"><img src="https://agentmods.dev/badge/skills/microsoft/sre-agent/rbac-audit/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 rbac-audit

Your own site · 80×15
<a href="https://agentmods.dev/skills/microsoft/sre-agent/rbac-audit"><img src="https://agentmods.dev/badge/skills/microsoft/sre-agent/rbac-audit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 100 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,865 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 Excessive Agency · line 60
    Skill allows unbounded resource consumption (API calls, storage, compute). Without rate limits or quotas, a compromised or misbehaving agent can cause denial-of-service or cost overruns.
    Fix: Set explicit rate limits, timeouts, and resource quotas for API calls, file operations, and compute. Implement circuit breakers for runaway loops.
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 $0.00100 $0.01865
Opus 5.5 $0.00040 $0.00746
Sonnet 5.5 $0.00020 $0.00373
Haiku 4.5 $0.00010 $0.00186

Measured 1mo ago against content hash a31640482a8e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

rbac-audit 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 1mo 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.

labs/zava-learning/sre-config/agent-config/skills/rbac-audit/SKILL.md · 103 lines

How it starts

The opening of the file, as written. The whole thing — 103 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Zava Learning — RBAC / Least-Privilege & Access-Usage Audit

Resource Group: @@RG@@. Read-only audit — never create, modify, or remove a role assignment. This is a weekly governance review of who can do what here, and whether they actually use it. The goal is real least-privilege hygiene: surface over-privileged identities, direct (ungoverned) assignments, and standing access that has gone unused so a human can clean it up.

Identity naming policy (governance reports name their subjects)

The principals under audit (their display name / UPN / objectId and role) are the subject of this report — show them; an RBAC finding that hides the identity is useless. This is NOT the learner-PII the redaction standard protects. Still apply SearchMemory("zava-redaction") redact() to strip any secrets, tokens, credentials, or learner/customer PII that happen to appear, and never print secret values — but DO name the admins, service principals, and groups being audited.

Where the names come from (do NOT call Microsoft Graph): take the identity name from the principalName field that az role assignment list already returns, plus principalType. Do not run az ad user/group/sp list|show or az rest https://graph.microsoft.com/... to resolve names or look up guest/enabled status — the SRE Agent's managed identity has no Graph directory-read permission, so those calls fail with Insufficient privileges AND are gated as PendingAuthorization, which would stall this unattended weekly run. If a principalName is blank, identify that principal by its principalId (objectId) + principalType and note "display name unavailable (directory lookup not permitted)". A UPN containing #EXT# (when present in principalName) still indicates a guest.

1. Enumerate the real assignments effective on the RG

  • All assignments scoped at or above the RG (this includes subscription/management-group inheritance — most access here is inherited): az role assignment list --scope /subscriptions/<sub>/resourceGroups/@@RG@@ --include-inherited -o json.
  • For each: capture principalName, principalType (User / Group / ServicePrincipal), roleDefinitionName, scope, description, and createdOn where present. These fields are sufficient — everything you need to name and classify a principal is already in this output; no follow-up directory calls.

Read the full file on GitHub · 103 lines

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. 1mo ago First seen · 103 lines · 100 tokens per session scan A a31640482a8e

Subscribe to this mod's changes

rbac-audit is a skill published in the GitHub repository microsoft/sre-agent (179 stars, last pushed 3d ago), licensed MIT. It adds 100 tokens to every session and 1,865 once invoked, about $0.0004 per session on Opus 5.5. 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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