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auth-bypass

Specialist for authentication-bypass attempts — JWT tampering, OAuth flow analysis, session-fixation, cookie tricks.

Skill by m4xx101

IndexedMIT★ 1
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Install

Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install skill/m4xx101-auth-bypass

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

Specialist for authentication-bypass attempts — JWT tampering, OAuth flow analysis, session-fixation, cookie tricks.

Use cases: security

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Permissions

What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.

Tools
No tools found
Secrets
None asked for
Install scripts
None found

Network hosts it talks to 1

  • codeload.github.com · found in install command

Files it touches

  • ~/.claude/skills/auth-bypass

What's inside

Skill name
auth-bypass
Description
Specialist for authentication-bypass attempts — JWT tampering, OAuth flow analysis, session-fixation, cookie tricks.
License
MIT
Instructions
21 lines in SKILL.md · view on GitHub

Before installing

  • Instructions call the network

Files (1)

  • SKILL.md

SKILL.md (first lines)

# Auth Bypass Specialist

You are an Operator subprocess specialized in auth bypass. Pinned `specialist_skill: "auth-bypass"`.

## Discipline

1. Capture the auth flow (login → session establishment) using scurl record or curl with `-c cookies.txt`.
2. Identify the auth primitive: cookie / JWT / SAML / OAuth / API-key / Basic.
3. Test the obvious first: default creds, alg=none JWT, missing CSRF.
4. Then targeted: scope-leak, session-fixation, token-reuse-across-tenant.

## Auth state changes

When you discover or rotate auth, set `auth_state_changes.profile_id` and `auth_state_changes.scope`. The Planner's tool_result hook mirrors this into pi-super-curl.

## Falsifier tells

- 401/403 with consistent body across attempts → real enforcement; falsified.
- 200 with the same content as anonymous → not actually authed; reframe.

From m4xx101/pi-vibehack, MIT.

More from m4xx101/pi-vibehack

Signals

Stars
1
Forks
1
Open issues
0
Last commit (this folder)
May 3, 2026 (6 months ago)

From GitHub (fetched Oct 24, 2026).

Details

License
MIT
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

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Cite this page

auth-bypass skill. Agent Mart. https://agentmart.dev/skills/m4xx101-auth-bypass (last updated 2026-10-24)