bugcrowd-reporting

bugcrowd-reporting is a skill for Claude Code from Zyrexnn/Cybermes. It costs 171 tokens per session (5,137 once invoked), scanned A, a copy of bugcrowd-reporting, Apache-2.0.

Guidance for writing vulnerability reports for Bugcrowd, a platform where organizations receive security reports from researchers. It covers Bugcrowd's vulnerability categories, severity choices, and scope-related responses.

In plain words
What is it for?
Use it when preparing a Bugcrowd submission, selecting a Vulnerability Rating Taxonomy category, requesting a different severity, or responding to an out-of-scope decision.
Why use it?
It helps researchers choose a fitting category and explain impact when Bugcrowd's default severity or program rules do not fully reflect the issue.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the Claude-BugHunter plugin — 11 skills, 15 commands shipped together

Good fit Use it when preparing a Bugcrowd submission, selecting a Vulnerability Rating Taxonomy category, requesting a different severity, or responding to an out-of-scope decision.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/zyrexnn/cybermes/bugcrowd-reporting
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 Zyrexnn/Cybermes --skill bugcrowd-reporting
Clone the repo
git clone --depth 1 https://github.com/Zyrexnn/Cybermes

Made for: Claude Code.

Or install Claude-BugHunter, the plugin that ships this one along with the rest of its 11 skills, 15 commands.

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 bugcrowd-reporting

README.md
[![agentmods](https://agentmods.dev/badge/skills/zyrexnn/cybermes/bugcrowd-reporting/github.svg)](https://agentmods.dev/skills/zyrexnn/cybermes/bugcrowd-reporting)
Your own site
<a href="https://agentmods.dev/skills/zyrexnn/cybermes/bugcrowd-reporting"><img src="https://agentmods.dev/badge/skills/zyrexnn/cybermes/bugcrowd-reporting/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 bugcrowd-reporting

Your own site · 80×15
<a href="https://agentmods.dev/skills/zyrexnn/cybermes/bugcrowd-reporting"><img src="https://agentmods.dev/badge/skills/zyrexnn/cybermes/bugcrowd-reporting.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 171 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,137 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 100% 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 $0.00171 $0.05137
Opus 5.5 $0.00068 $0.02055
Sonnet 5.5 $0.00034 $0.01027
Haiku 4.5 $0.00017 $0.00514

Measured 1mo ago against content hash 157cca1092da, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

bugcrowd-reporting 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 1mo 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

100% identical to bugcrowd-reporting — 1 line 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.

knowledge/Claude-BugHunter/skills/bugcrowd-reporting/SKILL.md · 323 lines

How it starts

The opening of the file, as written. The whole thing — 323 lines — stays where its author put it; the contents beside it link to each section on GitHub.

BUGCROWD REPORTING — Program-Specific Tactics

Companion to the generic report-writing skill. Use when working specifically on Bugcrowd submissions where VRT mapping, OOS-clause rebuttals, or per-program target selection matter.

This skill encodes patterns that apply specifically to Bugcrowd's submission flow. For the generic per-platform templates (HackerOne / Bugcrowd / Intigriti / Immunefi report bodies), use the report-writing skill. For the 7-Question Gate before deciding to report at all, use triage-validation.


1. VRT Category Selection — Search & Fallback Strategy

Bugcrowd's submission form requires a single VRT (Vulnerability Rating Taxonomy) selection. The dropdown's default severity is bound to the chosen node — pick wrong and the form auto-suggests a lower priority (often P4) when the actual impact is P3 or P2.

Note: VRT default severities are not fixed constants. Bugcrowd revises the VRT schema across versions, and individual programs can remap defaults via their own priority configuration. The P-values shown in the examples below (e.g., "No Rate Limiting on Form → Login" defaulting to P4) are the typical baseline at time of writing — always read the severity the current form actually auto-suggests for this program rather than assuming the value here.

1.1 Search hierarchy (try in order, pick the highest-severity match that still describes the bug)

For any finding, search the VRT dropdown with these terms in this order:

  1. The bug's primary class — e.g., IDOR, XSS, SSRF, auth bypass, 2FA bypass
  2. The data category exposed — e.g., PII, sensitive data exposure, disclosure of secrets
  3. The control bypassed — e.g., broken access control, authentication bypass
  4. The endpoint type — e.g., no rate limiting on form > login, no rate limiting on form > change password
  5. The generic parent node — e.g., Server Security Misconfiguration > Other, Broken Access Control > Other

1.2 Pick the highest-severity match that still accurately describes the bug

Read the full file on GitHub · 323 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. 1mo ago First seen · 323 lines · 171 tokens per session scan A 157cca1092da

Subscribe to this mod's changes

bugcrowd-reporting is a skill published in the GitHub repository Zyrexnn/Cybermes (668 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 171 tokens to every session and 5,137 once invoked, about $0.0007 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to bugcrowd-reporting, differing in 1 line, and is treated as a copy.

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