claude-red is a library of structured skills that give Claude specialized offensive-security methods for areas such as web vulnerabilities, shellcode, exploit development, and identity systems. It is intended for authorized red-team work, bug-bounty triage, security research, CTF preparation, and operator training. Its catalogue contains the project's skills for loading these security specializations into Claude.
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.
npx agentmods add skills/snailsploit/claude-red/offensive-osintnpx skills add SnailSploit/Claude-Red --skill offensive-osintgit clone --depth 1 https://github.com/SnailSploit/Claude-RedWrote 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.
[](https://agentmods.dev/skills/snailsploit/claude-red/offensive-osint)<a href="https://agentmods.dev/skills/snailsploit/claude-red/offensive-osint"><img src="https://agentmods.dev/badge/skills/snailsploit/claude-red/offensive-osint.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00108 | $0.06081 |
| Opus 5 | $0.00054 | $0.03040 |
| Sonnet 5 | $0.00022 | $0.01216 |
| Haiku 4.5 | $0.00011 | $0.00608 |
Grade A, and why
offensive-osint 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 5d 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.
How it starts
The opening of the file, as written. The whole thing — 398 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Offensive OSINT Methodology
Workflow
- Define target scope (domain, org, person, crypto address, or geo subject)
- Select applicable categories below based on scope
- Work top-down within each category; pivot on discovered artifacts
- Archive every key artifact: URL + timestamp + screenshot (PNG) + hash (SHA-256)
- Log findings in JSONL with a
run_idand tool versions for reproducibility - Suggest next steps based on what each tool returns
General OSINT
- Bookmarks — Comprehensive OSINT bookmarks
- OSINT Framework — Tool/resource directory
- IntelTechniques Tools — Suite of investigative tools
- Bellingcat Toolkit — Investigative journalism tools
- CyberSudo OSINT Toolkit — OSINT websites list
- Google Dorks — Efficient Google searching
- Distributed Denial of Secrets — Leaked data
- Country-Specific Resources — Country-targeted OSINT
Search Engines
| Tool | Notes |
|---|---|
| Carrot2 | Clusters results by topic |
| etools | Metasearch engine |
| Kagi | Privacy-first, non-personalized results |
| Brave Search | Independent index; Goggles for custom ranking |
| PDF Search | Search PDF files and view table of contents |
| Google Fact Check Explorer | Cross-site fact-check search |
Username & Email Investigation
| Tool | Purpose |
|---|---|
| Sherlock | Username search across social networks |
| Maigret | Collect profiles by username from many sites |
| What's My Name | Username search across platforms |
| Holehe | Check if email is registered on platforms |
| Epieos | Email address pivots and metadata |
| OSINT Industries | Email/username/phone lookups |
| Hunter.io | Find email addresses for a domain |
| EmailRep | Email reputation and associated data |
| Emailable | Verify email existence |
| Mugetsu | X/Twitter username history |
| RocketReach / Apollo | Email enrichment and pattern guessing |
| PhoneInfoga | Phone number intelligence framework |
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.
- 5d ago First seen · 398 lines · 108 tokens per session scan A 90020a10776e
offensive-osint is a skill published in the GitHub repository SnailSploit/Claude-Red (3,026 stars, last pushed 6d ago), licensed MIT. It adds 108 tokens to every session and 6,081 once invoked, about $0.0005 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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