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.
npx skills add sanjaysaini1952/BugBounty-Arsenal --skill auth-bypassgit clone --depth 1 https://github.com/sanjaysaini1952/BugBounty-ArsenalWrote 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.
[](https://agentmods.dev/skills/sanjaysaini1952/bugbounty-arsenal/auth-bypass)<a href="https://agentmods.dev/skills/sanjaysaini1952/bugbounty-arsenal/auth-bypass"><img src="https://agentmods.dev/badge/skills/sanjaysaini1952/bugbounty-arsenal/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.
<a href="https://agentmods.dev/skills/sanjaysaini1952/bugbounty-arsenal/auth-bypass"><img src="https://agentmods.dev/badge/skills/sanjaysaini1952/bugbounty-arsenal/auth-bypass.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00000 | $0.00821 |
| Opus 5 | $0.00000 | $0.00411 |
| Sonnet 5 | $0.00000 | $0.00164 |
| Haiku 4.5 | $0.00000 | $0.00082 |
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.
How it starts
The opening of the file, as written. The whole thing — 70 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Authentication Bypass Hunting Skill — 17 Test Cases
Load when: auth bypass, login bypass, authentication, session management, password reset.
71. Password reset token prediction (medium)
Request password reset for a test account. Inspect the reset token. If predictable (sequential, timestamp-based, weak hash), forge tokens for other accounts.
72. Password reset link reuse (easy)
Use a password reset link. After successful reset, try the same link again. Report if token is invalidated or still valid.
73. Password reset link expiration (easy)
Request password reset and wait >24 hours. Try the expired link. Report if it still works or gives a meaningful error.
74. Auth bypass via response manipulation (medium)
After failed login, manipulate response: {"success": false, "isAdmin": false} → {"success": true, "isAdmin": true}. Report if server trusts client-side response.
75. Auth bypass via case sensitivity (easy)
Test login with email variations: [email protected], [email protected], [email protected]. Report if case-insensitive comparison bypasses checks.
76. Auth bypass via null bytes (easy)
Add null bytes to username/password: admin%00, admin\x00. Report if null byte truncation bypasses validation.
77. Auth bypass via JSON type confusion (medium)
Send {"username": ["admin"], "password": "pass"} or {"username": {"$ne": ""}}. Report if type juggling bypasses checks.
78. Session fixation (medium)
Set session cookie before login. Login successfully. Report if same session ID persists or if new session is issued.
79. JWT alg:none bypass (easy)
If app uses JWT, decode token, change alg to none, remove signature. Submit. Report if accepted.
80. JWT key confusion (medium)
If app uses RS256, try forging JWT with HMAC using the public key (RS256→HS256 confusion).
81. Session token in URL (easy)
Check if session tokens appear in URLs, Referer headers, or log files. Report token leakage vectors.
82. Auth bypass via redirect (medium)
After login, check redirect URL. Try ?next=/admin, ?returnUrl=/admin. Report if authorization checks are skipped on redirected pages.
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.
- 11d ago First seen · 70 lines · 0 tokens per session scan A 24a161c2201c
auth-bypass is a skill published in the GitHub repository sanjaysaini1952/BugBounty-Arsenal (2 stars, last pushed 1mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 821 tokens. 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.
Other skills, from other repositories
systematic-debugging
Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes.
local-ai-agents
Build local-first AI agents that run entirely on a developer workstation with Microsoft Foundry Local and Qwen function-calling models. Covers Small Language Models (SLMs), the OpenAI-compatible local endpoint, sandboxed local tools, local RAG with Chroma, local MCP servers, hybrid cloud/local routing, and the…
next-cache-components-adoption
Turn on Cache Components in a Next.js app and resolve the blocking routes it surfaces. Use when the user wants to enable, adopt, or migrate to Cache Components, flip the cacheComponents flag, work through a flood of blocking-prerender / instant validation errors, run the cache-components-instant-false codemod, or…
insight-error-page
Write or audit an insight-kind error page for the Next.js dev overlay. Use when creating a new errors/ .mdx page, auditing an existing one, or checking that a page matches the framework fix cards. Covers page structure, title alignment, FixCard cards with Copy prompt button, code snippets, terminology verification…
next-cache-components-optimizer
Drive a Next.js route to instant navigation by setting up an agentic loop, under Cache Components / PPR, on initial load (hard navigation) and client-side navigation (soft navigation). Encode the goal as a failing @next/playwright instant() e2e and work it to green, one verified route at a time; the shipped test then…
next-partial-prefetching-adoption
Turn on Partial Prefetching in a Next.js app and work through the insights it surfaces. Use when the user wants to enable or adopt Partial Prefetching, flip the partialPrefetching flag, opt routes in with export const prefetch = 'partial', audit Link prefetch={true} behavior, preserve existing prefetched UI with…