Quick start · No code required

Getting Started in under 5 minutes

How to download a cbug skill and add it to Claude. No API keys. No code. No setup.

What you need

  • A Claude account — Free works for Chat mode. Pro+ for Claude Code.
  • Access to claude.ai/customize/skills (admin or skill-install permission)
  • A ZIP file of the skill — downloaded from the cbug GitHub repo

Install a skill — step by step

1

Find the skill you want

Browse the skills directory — 51 skills across 8 attack domains. Each page shows the slash command, environment support, and description.

2

Download the skill ZIP from GitHub

Navigate to the skill folder in the cbug skills repo. Click the green Code button → Download ZIP. Each skill lives in its own folder — download one skill or an entire domain.

3

Upload to claude.ai/customize/skills

Go to claude.ai/customize/skills, click Add skill, and upload the ZIP. The skill becomes available as a slash command workspace-wide — immediately, no restart needed.

4

Use the skill in Claude

Type / in any Claude conversation to see your skills, select one, and attach your target URL or file. Findings are streamed back in the conversation.

# Example — SQLi hunt

/hunt-sqli https://target.com/search?q=test

Running SQLi patterns... time-based check...

✓ Blind SQLi found — /api/search?q= (8.3s delay)

CVSS: 9.1 · Ready for /triage

Recommended install order

Start with Web Hunting — it covers the majority of H1 bug class patterns and is the most commonly used domain.

FirstWeb HuntingStart here — 22 skills, covers the most common H1 vulnerability classes
ThenAuth & IdentityOAuth, JWT, SAML, ATO, MFA bypass patterns
ThenReporting & Hygiene7-Question Gate, report writing, evidence hygiene
ThenRecon & OSINTOSINT methodology, subdomain hunting, offensive recon
ThenAPI & InfrastructureAPI misconfig, cloud storage, GraphQL, NTLM
ThenEnterprise PlatformsM365, Okta, vCenter, IAM privilege escalation
ThenRed TeamAPK pipeline, supply chain recon, IR detection
ThenSpecializedWeb3 smart contracts, meme coin audits

FAQ

Do I need a paid Claude account?

No. Claude Free works for Chat-mode skills. Pro and higher give more context, faster responses, and better throughput. Claude Code (terminal) requires Claude Pro or higher.

Do these skills work with the Anthropic API?

Yes. Each SKILL.md is a complete system prompt. You can pass it directly to the Anthropic API or OpenRouter. See the GitHub repo for API usage examples.

Can I install individual skills or only full domains?

Both. Each skill folder can be downloaded and uploaded independently. Download the full domain ZIP to get all skills in one upload.

Can I modify the skills?

Absolutely. The skills are MIT licensed. Fork the repo, edit the SKILL.md files to match your target types, scope, or program rules, and upload your modified version.

Are skills visible to my whole Claude workspace?

When you upload via claude.ai/customize/skills, the skill is available to your workspace by default. Check Claude admin settings to control skill visibility.

What's the 7-Question Gate?

A mandatory pre-submission checklist built into the triage-validation skill. Every finding must pass all 7 questions before a report gets written. One wrong answer kills the finding — this keeps your N/A ratio clean.

Ready to get started?

Browse all 51 skills across 8 attack domains — MIT licensed.

Ready to install your first skill? Start in minutes.

Browse all 8 attack domains — 51 specialized skills, MIT licensed.

Browse all 8 domainsRead the install guide

Works with Claude Free, Pro, Teams, and Enterprise · MIT License