access-matrix

access-matrix is a skill for Claude Code from sickn33/agentic-awesome-skills. It costs 41 tokens per session (3,628 once invoked), scanned A, original, MIT.

An access matrix describing what each role can see and change, including scope, confidentiality, and subject-matter expertise level. It can produce templates in formats such as CSV, SQL, JSON Schema, or Notion when requested.

In plain words
What is it for?
Use it to plan access reviews, compare role permissions, and request a structured template for documenting who can access which data or actions.
Why use it?
It makes unclear or inconsistent permissions easier to review without mixing them with payroll, tax filing, or legal advice. It starts with a recommendation rather than creating a filled system automatically.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the agentic-awesome-skills plugin — 243 skills shipped together

Good fit Use it to plan access reviews, compare role permissions, and request a structured template for documenting who can access which data or actions.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/sickn33/agentic-awesome-skills/access-matrix
About the project

AAS Core is a local control plane for coding agents that lets them search a large catalogue of skills, choose a stack, validate it, and create a reproducible plan. It is used to assemble and review agent workflows through its CLI, local MCP server, catalogue, plugins, and Workbench. The catalogue add-ons provide the skills, plugins, bundles, and workflows that AAS Core helps agents select and validate.

sickn33/agentic-awesome-skills · 47,606 stars · on GitHub · aaskills.tech

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 sickn33/agentic-awesome-skills --skill access-matrix
Clone the repo
git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills

Made for: Claude Code.

Or install agentic-awesome-skills, the plugin that ships this one along with the rest of its 243 skills.

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 access-matrix

README.md
[![agentmods](https://agentmods.dev/badge/skills/sickn33/agentic-awesome-skills/access-matrix/github.svg)](https://agentmods.dev/skills/sickn33/agentic-awesome-skills/access-matrix)
Your own site
<a href="https://agentmods.dev/skills/sickn33/agentic-awesome-skills/access-matrix"><img src="https://agentmods.dev/badge/skills/sickn33/agentic-awesome-skills/access-matrix/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 access-matrix

Your own site · 80×15
<a href="https://agentmods.dev/skills/sickn33/agentic-awesome-skills/access-matrix"><img src="https://agentmods.dev/badge/skills/sickn33/agentic-awesome-skills/access-matrix.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 41 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,628 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 $0.00041 $0.03628
Opus 5.5 $0.00016 $0.01451
Sonnet 5.5 $0.00008 $0.00726
Haiku 4.5 $0.00004 $0.00363

Measured today against content hash 6258d97799ca, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

access-matrix 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 today.

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

Copies of this mod

2 near-identical copies found in the catalogue:

plugins/agentic-awesome-skills-claude/skills/access-matrix/SKILL.md · 340 lines

How it starts

The opening of the file, as written. The whole thing — 340 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Access Matrix

What it is: What each role can see and change.

Overview

Works out the smallest useful Access Matrix setup for the business in front of it, then builds it only when asked. The default output is a short recommendation, not a spreadsheet. Artifacts - CSV, SQL DDL, JSON Schema, Notion mapping - are produced on request, from one field list so they cannot drift apart.

Layer: Layer 1: Foundation. Fits: Growth stage. Table code: n/a.

When to Use This Skill

  • who can access what matrix
  • role permission matrix
  • access control spreadsheet
  • who sees which data

Also use it when the user says "what each role can see and change", or describes the same process happening in a spreadsheet, a document or someone inboxes.

Do not use it for: payroll calculation, tax filing, or legal advice. This skill produces empty templates by default. A requested review may use supplied data transiently; do not imply that the host never processes it.

How It Works

Follow the shared execution contract. The module-specific rules below define only domain fields, decisions, calculations, and safety constraints.

The upstream shared contract is not bundled here; this procedure must remain usable on its own.

Step 1 - Identify intent

Read the request and pick the intent before asking anything.

  • "set up" or "build" or "create" -> the user wants artifacts; go to Step 2.
  • "our process is ..." or "it is in a sheet" -> the user wants to move an existing process; capture it, then Step 2.
  • "is this right" or "review" or "audit" -> the user wants a check, not a build; answer from what they share.
  • "how do I ..." -> advice question; answer directly and offer the build only if it helps.

Ask only if this is the highest-value missing fact; otherwise proceed without an opener:

Q: How many roles exist in the company?

Step 2 - Ask only what is missing

Skip anything the user already answered, in any earlier message. Ask the rest one at a time, and stop as soon as the remaining answers would not change the output.

Read the full file on GitHub · 340 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. today Changed · +1 lines 6258d97799ca
  2. 15d ago First seen · 339 lines · 41 tokens per session scan A aa07e7028ad1

Subscribe to this mod's changes

access-matrix is a skill published in the GitHub repository sickn33/agentic-awesome-skills (47,606 stars, last pushed today), licensed MIT. It adds 41 tokens to every session and 3,628 once invoked, about $0.0002 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 2026-09-30.

Related

Other skills, from other repositories