review-access-control

review-access-control is a skill for Codex from Sefyu24/master-iam-skills. It costs 191 tokens per session (2,189 once invoked), scanned A, original, MIT.

A guide for checking and designing who can access resources and actions in web applications and APIs. It explains access-control concepts such as roles, permissions, and organization isolation.

In plain words
What is it for?
Use it to inspect, model, or explain access rules, enforcement points, permission changes, and denied-access tests. It can also guide a small code fix when the user explicitly asks for one.
Why use it?
It helps find cases where users can view or perform actions they should not, including access to another user's data or higher-privilege functions.

Skill for Codex

Written for Codex: agents/openai.yaml present.

Good fit Use it to inspect, model, or explain access rules, enforcement points, permission changes, and denied-access tests. It can also guide a small code fix when the user explicitly asks for one.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/sefyu24/master-iam-skills/review-access-control
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 Sefyu24/master-iam-skills --skill review-access-control
Clone the repo
git clone --depth 1 https://github.com/Sefyu24/master-iam-skills

Made for: 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 review-access-control

README.md
[![agentmods](https://agentmods.dev/badge/skills/sefyu24/master-iam-skills/review-access-control/github.svg)](https://agentmods.dev/skills/sefyu24/master-iam-skills/review-access-control)
Your own site
<a href="https://agentmods.dev/skills/sefyu24/master-iam-skills/review-access-control"><img src="https://agentmods.dev/badge/skills/sefyu24/master-iam-skills/review-access-control/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 review-access-control

Your own site · 80×15
<a href="https://agentmods.dev/skills/sefyu24/master-iam-skills/review-access-control"><img src="https://agentmods.dev/badge/skills/sefyu24/master-iam-skills/review-access-control.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 191 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,189 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 $0.00191 $0.02189
Opus 5.5 $0.00076 $0.00876
Sonnet 5.5 $0.00038 $0.00438
Haiku 4.5 $0.00019 $0.00219

Measured yesterday against content hash d2c1ffdfdd84, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

review-access-control 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 yesterday.

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.

skills/production/review-access-control/SKILL.md · 157 lines

How it starts

The opening of the file, as written. The whole thing — 157 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Review Access Control

Turn business access rules into evidence, permission decisions, and tests. Give a practical identity and access management (IAM) result instead of generic security advice.

Set the boundary

  • Work only on systems and artifacts that the user is authorized to inspect.
  • Use source review, local tests, and user-approved test environments.
  • Do not attempt to bypass controls on a live service.
  • Do not expose credentials, tokens, secrets, or unnecessary personal data.
  • Treat this as focused access-control work, not a complete security or compliance assessment.
  • Do not claim that an application is secure because the review found no weakness.
  • Keep authentication, session, authorization, and general application-security observations separate.
  • If the user requests only a review, do not modify code.
  • If the user requests a fix, make the smallest durable change and add a denied-path test.

Choose the outcome

Use one or more paths:

  1. Inspect: Find access-control weaknesses and support each conclusion with evidence.
  2. Model: Define actors, protected resources, actions, policy inputs, enforcement points, lifecycle rules, and tests.
  3. Learn: Explain IAM through the decisions present in a lab, design, or implementation.

Read guides/clear-technical-english.md before producing a user-facing answer.

Read only the files that the task needs. Paths inside a guide or template are relative to that file.

Need Read or use
Inspection checks guides/review-playbook.md
Severity and confidence guides/finding-severity.md
Permission design, access models, and policy points guides/permission-modeling.md
Role analysis, role design, and role mining guides/role-design-and-mining.md
Short identity overview guides/identity-context.md
IAM objects, identity governance, and access principles guides/iam-foundations.md
Authentication, sessions, single sign-on, and federation guides/authentication-and-federation.md
Lifecycle events, provisioning, access reviews, and stale access guides/lifecycle-and-governance.md
Service accounts, workloads, and artificial intelligence (AI) agents guides/non-human-identities-and-agents.md
Standards, versions, and licenses guides/public-sources.md
Term definitions guides/glossary.md
Review report templates/review-report.md
Permission map templates/permission-map.md
Authorization threat model templates/authorization-threat-model.md
Verification plan templates/verification-plan.md

Read the full file on GitHub · 157 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. yesterday Changed · +18 lines · +88 tokens per session d2c1ffdfdd84
  2. 1mo ago First seen · 139 lines · 103 tokens per session scan A a43dbf580d58

Subscribe to this mod's changes

review-access-control is a skill published in the GitHub repository Sefyu24/master-iam-skills (14 stars, last pushed yesterday), licensed MIT. It adds 191 tokens to every session and 2,189 once invoked, about $0.0008 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 2026-08-31.

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