auth-bypass

auth-bypass is a skill for Claude Code, Codex from MingyiSecLab/Mingyi-Atlas. It costs 25 tokens per session (139 once invoked), scanned A, a copy of auth-bypass, Apache-2.0.

A security review guide for finding authentication and authorization bypasses—ways a user can reach protected actions or data without the required permission.

In plain words
What is it for?
Testing admin routes, role-based access, tenant separation, MFA and password-reset flows, and multi-step authorization transitions.
Why use it?
It helps uncover missing checks, trusted user-controlled roles or tenant IDs, and inconsistencies between related routes or authentication steps.

Skill for Claude CodeCodex

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

Good fit Testing admin routes, role-based access, tenant separation, MFA and password-reset flows, and multi-step authorization transitions.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mingyiseclab/mingyi-atlas/auth-bypass
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 MingyiSecLab/Mingyi-Atlas --skill auth-bypass
Clone the repo
git clone --depth 1 https://github.com/MingyiSecLab/Mingyi-Atlas

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 auth-bypass

README.md
[![agentmods](https://agentmods.dev/badge/skills/mingyiseclab/mingyi-atlas/auth-bypass/github.svg)](https://agentmods.dev/skills/mingyiseclab/mingyi-atlas/auth-bypass)
Your own site
<a href="https://agentmods.dev/skills/mingyiseclab/mingyi-atlas/auth-bypass"><img src="https://agentmods.dev/badge/skills/mingyiseclab/mingyi-atlas/auth-bypass/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 auth-bypass

Your own site · 80×15
<a href="https://agentmods.dev/skills/mingyiseclab/mingyi-atlas/auth-bypass"><img src="https://agentmods.dev/badge/skills/mingyiseclab/mingyi-atlas/auth-bypass.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 25 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 139 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 89% 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 $0.00025 $0.00139
Opus 5 $0.00013 $0.00069
Sonnet 5 $0.00005 $0.00028
Haiku 4.5 $0.00003 $0.00014

Measured 11d ago against content hash b68298d13d8d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

auth-bypass 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 11d 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.

Origin

This is a copy

89% identical to auth-bypass — 3 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.

src/skills/standard/analyst/auth-bypass/SKILL.md · 23 lines

What it actually says

Auth Bypass Playbook

Targets

  • Endpoints with role-based access
  • Admin-only routes
  • Tenant-scoped resources
  • Multi-step auth flows (MFA, password reset)

Common failure patterns

  • Missing middleware on one route variant
  • Trusting client-controlled role/tenant fields
  • TOCTOU between check and action
  • Alternate API versions lacking guard checks

Validation

  • Positive: low-priv session performs high-priv action.
  • Negative: same request with expected guard path should deny.
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. 11d ago First seen · 23 lines · 25 tokens per session scan A b68298d13d8d

Subscribe to this mod's changes

auth-bypass is a skill published in the GitHub repository MingyiSecLab/Mingyi-Atlas (11 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 25 tokens to every session and 139 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 89% identical to auth-bypass, differing in 3 lines, and is treated as a copy.