hackerone

hackerone is a skill for Claude Code, Codex from Netw0rkNoob/VulnClaw. It costs 43 tokens per session (1,624 once invoked), scanned A, original, MIT.

A safety wrapper for HackerOne bug-bounty testing that reads a program's allowed targets and rules before handing each allowed asset to a penetration-testing workflow. HackerOne is a platform where companies invite researchers to report security bugs.

In plain words
What is it for?
Use it with a HackerOne program link to identify in-scope assets, distinguish them from excluded targets, and enforce the program's testing boundaries.
Why use it?
It reduces the risk of testing systems that the program does not permit, which could violate the program rules.

Skill for Claude CodeCodex

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

Good fit Use it with a HackerOne program link to identify in-scope assets, distinguish them from excluded targets, and enforce the program's testing boundaries.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/netw0rknoob/vulnclaw/hackerone
About the project

VulnClaw is an AI-driven command-line penetration-testing agent that turns natural-language instructions into an automated workflow for reconnaissance, vulnerability discovery, exploitation, and report generation. It is intended for authorized penetration tests, CTF competitions, security teaching, and red-team exercises, using LLMs and MCP tools. The catalogue contains its specialized skills for security-testing tasks.

Netw0rkNoob/VulnClaw · 3,271 stars · on GitHub · unclecheng-li.github.io

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 Netw0rkNoob/VulnClaw --skill hackerone
Clone the repo
git clone --depth 1 https://github.com/Netw0rkNoob/VulnClaw

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 hackerone

README.md
[![agentmods](https://agentmods.dev/badge/skills/netw0rknoob/vulnclaw/hackerone/github.svg)](https://agentmods.dev/skills/netw0rknoob/vulnclaw/hackerone)
Your own site
<a href="https://agentmods.dev/skills/netw0rknoob/vulnclaw/hackerone"><img src="https://agentmods.dev/badge/skills/netw0rknoob/vulnclaw/hackerone/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 hackerone

Your own site · 80×15
<a href="https://agentmods.dev/skills/netw0rknoob/vulnclaw/hackerone"><img src="https://agentmods.dev/badge/skills/netw0rknoob/vulnclaw/hackerone.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,624 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00043 $0.01624
Opus 5 $0.00022 $0.00812
Sonnet 5 $0.00009 $0.00325
Haiku 4.5 $0.00004 $0.00162

Measured 9d ago against content hash 6d89f7bb4313, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

hackerone 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 9d 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

Copies of this mod

2 near-identical copies found in the catalogue:

  • hackerone — 100% identical, 0 lines differ
  • hackerone — 100% identical, 0 lines differ
vulnclaw/skills/specialized/hackerone/SKILL.md · 113 lines

How it starts

The opening of the file, as written. The whole thing — 113 lines — stays where its author put it; the contents beside it link to each section on GitHub.

HackerOne 赏金 scope-guard Skill

你当前正在执行 HackerOne bug bounty 流程。本 Skill 是一层 scope-guard wrapper: 先解析并强制 program scope 与 program rules,再把每个 in-scope asset 交给 pentest-flow Skill 执行真正的渗透。严禁在任何阶段触碰 out-of-scope asset。

启动参数是一个 HackerOne program 链接(<SCOPE LINK>),例如 hackerone.com/<handle>.../policy_scopes。本 Skill 无预设 target (frontmatter requires_target: false)——target 从 scope 中发现。

阶段一:读取 scope(Read scope)

  1. 优先 fetch 链接

    • 用 fetch 工具访问传入的 <SCOPE LINK>
    • HackerOne 是 JavaScript SPA:hackerone.com/* 的 fetch 通常只返回 空 app shell,没有渲染出的 scope 行(scope 数据来自 hackerone.com/graphql 或 authenticated api.hackerone.com,naive fetch 拿不到)。
    • 检测空壳:若响应中没有可识别的 scope 表格 / asset 列表(只有 <div id="app"> 之类的骨架),判定为 fetch 失败。
  2. fallback:请用户粘贴 scope

    • fetch 为空 / 被 login-wall / 仅 JS 渲染时,这是常态而非例外

    • 请用户从 program 页面的 Scope 标签把 in-scope 与 out-of-scope 两张表 直接粘贴过来。给出一个可参照的粘贴格式示例:

      In scope:
      https://api.example.com        | URL       | Eligible for bounty
      *.example.com                  | WILDCARD  | Eligible for bounty
      app.example.com                | URL       | In scope, NOT bounty-eligible
      com.example.android            | GOOGLE_PLAY_APP_ID | Eligible for bounty
      
      Out of scope:
      blog.example.com               | URL
      *.corp.example.com             | WILDCARD
      
  3. 宽松解析(lenient parse)

    • 从粘贴或 fetch 结果中提取两个列表:in-scopeout-of-scope
    • 识别 asset type(human label 或 API enum 均可): URLWILDCARD*.x.com)、CIDR/IP、SOURCE_CODEGOOGLE_PLAY_APP_ID/APPLE_STORE_APP_ID/TESTFLIGHT/OTHER_APK/OTHER_IPAHARDWAREAI_MODELSMART_CONTRACTOTHER 等。
    • 识别 eligibility 三态(submission 与 bounty 是两个独立布尔):
      • submission=true, bounty=true → in scope,可测,有赏金。
      • submission=true, bounty=falsein scope,可测,无赏金(勿与 out-of-scope 混淆)。
      • submission=falseout of scope,绝不测试
    • 解析不确定时,向用户确认,绝不把 asset 默认当作 in-scope

Read the full file on GitHub · 113 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 9d ago First seen · 113 lines · 43 tokens per session scan A 6d89f7bb4313

Subscribe to this mod's changes

hackerone is a skill published in the GitHub repository Netw0rkNoob/VulnClaw (3,271 stars, last pushed 3d ago), licensed MIT. It adds 43 tokens to every session and 1,624 once invoked, about $0.0002 per session on Opus 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 2026-08-30.

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