building-role-mining-for-rbac-optimization

building-role-mining-for-rbac-optimization is a skill for Claude Code, Codex from autohandai/community-skills. It costs 40 tokens per session (2,079 once invoked), scanned A, a copy of building-role-mining-for-rbac-optimization, Apache-2.0.

A guide to analyzing existing user permissions to discover sensible roles for role-based access control, or RBAC, where access is granted through job-related roles.

In plain words
What is it for?
It helps mine roles from permission data using bottom-up or top-down analysis, then validate the proposed roles with organizational stakeholders.
Why use it?
It helps reduce overlapping or excessive permissions and limits the growth of thousands of hard-to-manage roles.

Skill for Claude CodeCodex

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

Good fit It helps mine roles from permission data using bottom-up or top-down analysis, then validate the proposed roles with organizational stakeholders.

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Install with agentmods
npx agentmods add skills/autohandai/community-skills/building-role-mining-for-rbac-optimization
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 autohandai/community-skills --skill building-role-mining-for-rbac-optimization
Clone the repo
git clone --depth 1 https://github.com/autohandai/community-skills

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 building-role-mining-for-rbac-optimization

README.md
[![agentmods](https://agentmods.dev/badge/skills/autohandai/community-skills/building-role-mining-for-rbac-optimization/github.svg)](https://agentmods.dev/skills/autohandai/community-skills/building-role-mining-for-rbac-optimization)
Your own site
<a href="https://agentmods.dev/skills/autohandai/community-skills/building-role-mining-for-rbac-optimization"><img src="https://agentmods.dev/badge/skills/autohandai/community-skills/building-role-mining-for-rbac-optimization/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 building-role-mining-for-rbac-optimization

Your own site · 80×15
<a href="https://agentmods.dev/skills/autohandai/community-skills/building-role-mining-for-rbac-optimization"><img src="https://agentmods.dev/badge/skills/autohandai/community-skills/building-role-mining-for-rbac-optimization.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,079 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 92% copy Near-identical to another mod 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 $0.00040 $0.02079
Opus 5 $0.00020 $0.01040
Sonnet 5 $0.00008 $0.00416
Haiku 4.5 $0.00004 $0.00208

Measured 8d ago against content hash e1482eef9d01, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

building-role-mining-for-rbac-optimization 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.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/agent.py, scripts/process.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Origin

This is a copy

92% identical to building-role-mining-for-rbac-optimization — 33 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

building-role-mining-for-rbac-optimization/SKILL.md · 236 lines

How it starts

The opening of the file, as written. The whole thing — 236 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Building Role Mining for RBAC Optimization

Overview

Role mining is the process of analyzing existing user-permission assignments to discover optimal roles for a Role-Based Access Control (RBAC) system. Organizations accumulate excessive permissions over time through job changes, project assignments, and ad-hoc access grants, leading to "role explosion" where thousands of granular roles exist with significant overlap. Role mining uses data analysis -- including clustering algorithms, formal concept analysis, and graph-based methods -- to consolidate permissions into a minimal set of roles that accurately represent business functions while enforcing least privilege.

Prerequisites

  • Export of current user-permission assignments (CSV/database)
  • Identity governance platform or directory service access
  • Python 3.9+ with pandas, scikit-learn, numpy
  • Understanding of organizational structure and job functions
  • Stakeholder access for role validation workshops

Core Concepts

Role Mining Approaches

Approach Description Best For
Bottom-Up Analyze existing permissions to discover common patterns Large datasets with organic permission growth
Top-Down Design roles from business requirements and job descriptions Greenfield RBAC or organizational restructuring
Hybrid Combine bottom-up analysis with top-down business validation Most production environments

Role Mining Algorithms

1. Permission Clustering: Group users with similar permission sets using k-means or hierarchical clustering. Users in the same cluster share a common role.

2. Formal Concept Analysis (FCA): Mathematical framework that identifies complete set of concepts (user groups sharing exact permission sets) from a binary user-permission matrix.

3. Graph-Based Mining: Model users and permissions as a bipartite graph, then find dense subgraphs representing candidate roles.

4. Boolean Matrix Decomposition: Decompose the user-permission matrix U into U ≈ R × P where R maps users to roles and P maps roles to permissions.

Read the full file on GitHub · 236 lines

Files

What ships with it

7 files 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. 8d ago First seen · 236 lines · 40 tokens per session scan A e1482eef9d01

Subscribe to this mod's changes

building-role-mining-for-rbac-optimization is a skill published in the GitHub repository autohandai/community-skills (11 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 40 tokens to every session and 2,079 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 92% identical to building-role-mining-for-rbac-optimization, differing in 33 lines, and is treated as a copy.

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