offensive-osint
Helps your agent gather external information legally for security testing.
What it does
This tool helps security experts gather information about other systems, with authorization. It provides lists and technical references to understand how an external system works.
When to use it
- ✓When you need lists of paths or words to test a system.
- ✓When performing a technical investigation on a system, with permission.
- ✓To automate information gathering about a target.
Example of what to ask your AI
“I need a list of common paths to test a website.”
Want more? Open the sections below.
How to use
The easiest way: copy the message below and paste it into Claude, ChatGPT, Cursor or any AI. It reads the skill and follows the instructions.
Skill link
Ready-to-paste message
How it works
It acts as an index of tools and technical information. When you ask for something specific, it retrieves the exact information from its reference files, such as path lists or search patterns.
Installation
Easiest way: copy the skill link and paste it into Claude, ChatGPT or Cursor asking it to follow the instructions.
In the terminal (Claude Code, Codex, Cursor), in your project folder:
npx skills add sickn33/agentic-awesome-skills --skill offensive-osintOr download just the file:
curl -L https://raw.githubusercontent.com/sickn33/agentic-awesome-skills/main/plugins/agentic-awesome-skills-claude/skills/offensive-osint/SKILL.md -o SKILL.mdTechnical content (original SKILL.md)
Original text by the author, straight from GitHub.
Bundled upstream support
Supporting files are included at skill-relative paths. See UPSTREAM-NOTICE.md for their pinned sources, licenses, hashes, and import changes.
⚠️ AUTHORIZED USE ONLY This skill is for educational purposes or authorized security assessments only. You must have explicit, written permission from the system owner before using this tool. Misuse of this tool is illegal and strictly prohibited.
Mandatory confirmation gate Before running any command that probes, exploits, changes, persists on, extracts data from, or attempts credential access against a target:
- Ask the user to state the exact target URL, IP, account, or resource.
- Ask the user to confirm written authorization and the permitted scope.
- Show the exact command(s) and explain their expected effect.
- Wait for explicit confirmation in the current conversation.
Without that confirmation, remain read-only and provide defensive guidance only. Prefer a sandbox, disposable VM, or controlled lab.
Offensive OSINT — External Red-Team Arsenal
v3.0 — Refactored 2026-05-02 from a 4,168-line monolith into a lean SKILL.md (~400 lines) plus 15 modular reference files in
references/. Detail content loads on demand — Claude reads only the reference files relevant to the current task.
0. When to use / When NOT
Use this skill when:
- You need concrete probe paths, wordlists, regexes, payloads, scoring rules, or tool URLs.
- You're executing reconnaissance and need the actual technical reference (vs. methodology).
- You're building a recon automation and need specific lists to seed it.
Do NOT use this skill when:
- The user is asking for active exploitation, post-exploitation, or anything past reconnaissance.
- The user is asking for defensive / blue-team detections.
- The target's authorization isn't established — see §1.
1. Authorization & Legal Posture
For assets the operator owns or has written authorization to assess. The mandatory confirmation gate above applies to every active request and credential use. Modes, scores, discovered assets and companion skills never grant authorization. Keep passive source research distinct from requests to target systems; obtain approval before sending private target identifiers to a third-party provider.
2. Confidence Levels
- TENTATIVE — plausible based on indirect evidence (snippet-only dork match, single-source asset, inferred email pattern).
- FIRM — directly observed (subdomain resolves, HEAD-confirmed bucket exists, banner returned).
- CONFIRMED — verified via independent corroboration OR direct verification (live PMAK validation, multiple sources agree, listable bucket with object retrieval).
3. Output Format Conventions
Findings should carry: id, module, asset_key, category, severity (info/low/medium/high/critical), confidence, title, description, evidence (url + UTC timestamp + sha256 + redacted excerpt ≤ 2 KiB; protected raw evidence stored separately), references, remediation. UTC timestamps everywhere.
4. Source Hygiene & Citations
URL + UTC timestamp + SHA-256 + tool version + run_id, every artifact. PNG screenshots, JSONL run logs, redacted report excerpts capped at 2 KiB body. Collect only the minimum approved evidence; raw captures belong in a private engagement directory with restrictive permissions, retention and access controls.
5. Do NOT
- Don't paste creds/PII/session tokens into cloud LLMs.
- Do not run destructive probes in this reconnaissance skill. DEEP/
--aggressiveis not authorization; exploitation, writes, persistence and credential cracking require a separately approved assessment or controlled lab. - Don't use validated credentials for anything except read-only liveness check.
- Don't single-source attribute.
- Don't assume vendor labels are ground truth.
6. General OSINT (curated tool refs)
- OSINT Bookmarks — comprehensive bookmarks.
- OSINT Framework — tool/resource directory.
- IntelTechniques Tools — investigative suite.
- Bellingcat Toolkit — investigative journalism.
- CyberSudo OSINT Toolkit — OSINT websites list.
…
FAQ
Do I need permission to use this tool?
Yes, you can only use this tool on systems for which you have explicit, written permission.
What does 'reconnaissance' mean?
It's the process of gathering information about a target before any other action, like a detective investigating a case.
Can I use this tool to attack systems?
No, this tool is only for information gathering (reconnaissance) and should not be used for attacks or exploitation.
Details
Original description by the author
Operational arsenal for authorized external red-team and bug-bounty recon.
Popularity
- GitHub stars
- 48k
- Ranking position
- #3744
- License
- MIT
- Updated
- 10/15/2026
Comments
- …
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