bug-bounty-validation

bug-bounty-validation is a skill for Claude Code, Codex from woohyun212/security-skill. It costs 31 tokens per session (3,130 once invoked), scanned A, original, MIT.

A checklist for deciding whether a suspected security weakness is ready for a bug-bounty report. Bug-bounty programs pay or recognize researchers for valid vulnerabilities, but define which systems and issues they accept.

In plain words
What is it for?
Use it after finding a possible vulnerability and before writing the full report. It reviews evidence, scope, exploitability, impact, severity, and whether to submit, improve, combine, or discard the finding.
Why use it?
It helps prevent submitting findings that are out of scope, too weak, rejected by policy, or missing proof of impact. It also considers whether combining issues would create a meaningful attack chain and rates severity with CVSS 3.1.

Skill for Claude CodeCodex

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

Good fit Use it after finding a possible vulnerability and before writing the full report. It reviews evidence, scope, exploitability, impact, severity, and whether to submit, improve, combine, or discard the finding.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/woohyun212/security-skill/bug-bounty-validation
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 woohyun212/security-skill --skill bug-bounty-validation
Clone the repo
git clone --depth 1 https://github.com/woohyun212/security-skill

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 bug-bounty-validation

README.md
[![agentmods](https://agentmods.dev/badge/skills/woohyun212/security-skill/bug-bounty-validation.svg)](https://agentmods.dev/skills/woohyun212/security-skill/bug-bounty-validation)
Your own site
<a href="https://agentmods.dev/skills/woohyun212/security-skill/bug-bounty-validation"><img src="https://agentmods.dev/badge/skills/woohyun212/security-skill/bug-bounty-validation.svg" alt="Measured on agentmods" height="20"></a>
Per session 31 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,130 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 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 $0.00031 $0.03130
Opus 5 $0.00015 $0.01565
Sonnet 5 $0.00006 $0.00626
Haiku 4.5 $0.00003 $0.00313

Measured 7d ago against content hash f3d3877cffcc, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

bug-bounty-validation 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 7d 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.

bug-bounty-validation/SKILL.md · 252 lines

How it starts

The opening of the file, as written. The whole thing — 252 lines — stays where its author put it; the contents beside it link to each section on GitHub.

What this skill does

Provides a structured decision framework for validating bug bounty findings before submission. Runs a sequential gate system — 7-Question Gate, Always-Rejected List, Chain Requirement Evaluation, 4 Pre-Submission Gates, and CVSS 3.1 severity assessment — to produce a final verdict of SUBMIT, KILL, NEEDS CHAIN, or NEEDS IMPROVEMENT. Eliminates wasted submissions by catching invalid, out-of-scope, or low-quality reports before they reach the program.

When to use

  • After discovering a potential vulnerability and before writing the full report
  • When unsure whether a finding is worth submitting
  • When a finding seems valid but impact is borderline
  • When you have a low-severity finding and want to know if chaining elevates it
  • When a triage response came back "Informational" or "N/A" and you want to understand why
  • When reviewing a draft report for quality before final submission

Prerequisites

  • A potential finding with at least one HTTP request/response pair demonstrating the behavior
  • Knowledge of the target program's scope page (assets, exclusions, accepted vulnerability classes)
  • Access to the program's policy page on HackerOne, Bugcrowd, Intigriti, or equivalent platform
  • No external tools are required — this skill is a decision framework

Inputs

Variable Required Description
BV_FINDING Yes Short description of the vulnerability (e.g., "IDOR on /api/orders/ID allows reading other users' orders")
BV_ASSET Yes Full domain or asset where the finding was observed (e.g., api.example.com)
BV_VULN_CLASS Yes Vulnerability class (e.g., IDOR, XSS, SSRF, Open Redirect, CSRF)
BV_POC_STEPS Yes Number of reproduction steps documented
BV_IMPACT Yes One sentence describing the concrete business impact
BV_AUTH_REQUIRED Yes none, user, or admin — minimum privilege level required to exploit
BV_PROGRAM_SCOPE_URL Optional URL to the program's scope page for cross-reference
BV_CHAIN_PARTNER Optional Second vulnerability you can chain with this finding (leave blank if standalone)

Read the full file on GitHub · 252 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. 7d ago First seen · 252 lines · 31 tokens per session scan A f3d3877cffcc

Subscribe to this mod's changes

bug-bounty-validation is a skill published in the GitHub repository woohyun212/security-skill (21 stars, last pushed 4mo ago), licensed MIT. It adds 31 tokens to every session and 3,130 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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