security-bounty-hunter

security-bounty-hunter is a skill for Claude Code, Codex from drvoss/everything-copilot-cli. It costs 43 tokens per session (971 once invoked), scanned A, original, MIT.

A security review focused on finding remotely reachable vulnerabilities that could be reported through a bug bounty program, such as HackerOne or Huntr.

In plain words
What is it for?
Use it to investigate attack paths such as SSRF, authentication bypass, injection, path traversal, unsafe uploads, or cross-site scripting.
Why use it?
It filters attention toward exploitable issues likely to qualify for a real security report instead of listing only theoretical weaknesses.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/drvoss/everything-copilot-cli/security-bounty-hunter
Any agent
npx skills add drvoss/everything-copilot-cli --skill security-bounty-hunter
Clone the repo
git clone --depth 1 https://github.com/drvoss/everything-copilot-cli

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 security-bounty-hunter

README.md
[![agentmods](https://agentmods.dev/badge/skills/drvoss/everything-copilot-cli/security-bounty-hunter.svg)](https://agentmods.dev/skills/drvoss/everything-copilot-cli/security-bounty-hunter)
Your own site
<a href="https://agentmods.dev/skills/drvoss/everything-copilot-cli/security-bounty-hunter"><img src="https://agentmods.dev/badge/skills/drvoss/everything-copilot-cli/security-bounty-hunter.svg" alt="Measured on agentmods" 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 971 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
Origin unknown 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 $0.00043 $0.00971
Opus 5 $0.00022 $0.00485
Sonnet 5 $0.00009 $0.00194
Haiku 4.5 $0.00004 $0.00097

Measured today against content hash a2e6e1740c0f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

security-bounty-hunter scanned grade A with 1 finding 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 today.

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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

grep -r "requests.get\|urllib\|fetch\|axios" src/ --include="*.py" --include="*.ts" -n
skills/security/security-bounty-hunter/SKILL.md · 106 lines

How it starts

The opening of the file, as written. The whole thing — 106 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Security Bounty Hunter

Hunt for exploitable, bounty-worthy security issues. Bias toward remotely reachable, user-controlled attack paths — discard patterns that bounty platforms routinely reject as informative or out of scope.

When to Use

  • Scanning a repository for exploitable vulnerabilities
  • Preparing a Huntr, HackerOne, or similar bounty submission
  • Triage where the question is "does this actually qualify for a payout?" rather than "is this theoretically unsafe?"

When NOT to Use

For broad best-practices audits, use security-scan or evaluate-repository instead.

In-Scope Patterns

Pattern CWE Typical impact
SSRF through user-controlled URLs CWE-918 internal network access, cloud metadata theft
Auth bypass in middleware or API guards CWE-287 unauthorized account or data access
Remote deserialization or upload-to-RCE CWE-502 code execution
SQL injection in reachable endpoints CWE-89 data exfiltration, auth bypass
Command injection in request handlers CWE-78 code execution
Path traversal in file-serving paths CWE-22 arbitrary file read or write
Auto-triggered XSS CWE-79 session theft, admin compromise

Usually Out of Scope (skip unless program says otherwise)

  • Local-only pickle.loads, eval() with no remote path
  • shell=True on fully hardcoded commands
  • Missing security headers alone
  • Generic rate-limiting without exploit impact
  • Self-XSS requiring victim to paste code manually
  • Demo, example, or test-only code

Workflow

  1. Check scope — program rules, SECURITY.md, disclosure channel, exclusions
  2. Find real entrypoints — HTTP handlers, uploads, webhooks, background jobs, parsers
  3. Run static triage — use grep / powershell for pattern scanning; treat as triage input only
  4. Read the real code path end to end — follow data from entrypoint to sink
  5. Prove user control reaches a meaningful sink
  6. Confirm exploitability with the smallest safe PoC
  7. Check for duplicates — existing advisories, CVEs, open tickets

Read the full file on GitHub · 106 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. today First seen · 106 lines · 43 tokens per session scan A a2e6e1740c0f

Subscribe to this mod's changes

security-bounty-hunter is a skill published in the GitHub repository drvoss/everything-copilot-cli (45 stars, last pushed 8d ago), licensed MIT. It adds 43 tokens to every session and 971 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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