osint

osint is a skill for Claude Code from 0dayInc/pwn. It costs 21 tokens per session (1,624 once invoked), scanned A, original, MIT.

A guide for gathering information from public sources about people, companies, devices, internet systems, and other identifiers.

In plain words
What is it for?
Use it to investigate domains, IP addresses, emails, phone numbers, usernames, companies, vulnerabilities, vehicle IDs, patents, and similar clues.
Why use it?
It directs investigations to suitable public-data sources and keeps the default approach passive rather than actively probing targets.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

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/0dayinc/pwn/osint
Any agent
npx skills add 0dayInc/pwn --skill osint
Clone the repo
git clone --depth 1 https://github.com/0dayInc/pwn

Made for: Claude Code.

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 osint

README.md
[![agentmods](https://agentmods.dev/badge/skills/0dayinc/pwn/osint.svg)](https://agentmods.dev/skills/0dayinc/pwn/osint)
Your own site
<a href="https://agentmods.dev/skills/0dayinc/pwn/osint"><img src="https://agentmods.dev/badge/skills/0dayinc/pwn/osint.svg" alt="Measured on agentmods" height="20"></a>
Per session 21 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,624 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00021 $0.01624
Opus 5 $0.00010 $0.00812
Sonnet 5 $0.00004 $0.00325
Haiku 4.5 $0.00002 $0.00162

Measured 6d ago against content hash 6aa94be8acf3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

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 6d 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.

etc/default_skills/osint/SKILL.md · 148 lines

How it starts

The opening of the file, as written. The whole thing — 148 lines — stays where its author put it; the contents beside it link to each section on GitHub.

OSINT (extro_osint)

Use this whenever the ask is public-source intel on an IP, domain, email, phone, handle, person, company, CVE, VIN, MAC, FCC ID, patent, or URL. The verb is extro_osint (PWN::AI::Agent::Extrospection.osint). Do not substitute extro_snapshot(sections: [:osint]) - that only lists feed availability. Do not scrape random sites when this organ already covers the query.

When to use

  • reverse phone, person, @handle, company, CIK, NPI
  • IP / ASN / BGP / Shodan / reputation
  • domain CT / whois / RDAP / harvest
  • CVE EPSS + CISA KEV
  • VIN, MAC OUI, ham callsign, FCC ID, patent

Hand off live scanning to penetration-testing / NmapIt. Firmware IDs can start here (:fcc_id) then hardware-and-firmware-testing.

Methodologies

  • MITRE ATT&CK TA0043 Reconnaissance (passive collection)
  • NIST SP 800-115: target identification / OSINT as a technical technique
  • OSSTMM data channel (passive only unless the operator named active DNS)

Stay passive by default. amass is passive unless ai.agent.extrospection.osint.bridges.amass_passive is false.

How to call

Prefer the tool:

extro_osint(query: "8.8.8.8")
extro_osint(query: "@defunkt", kind: "social")
extro_osint(query: "target.tld", feeds: ["dns", "crtsh", "theharvester"])

Or pwn_eval:

PWN::AI::Agent::Extrospection.osint(query: '8.8.8.8', kind: :ip)

One atomic indicator per call. kind: :auto is fine when the string is unambiguous. Force kind: when auto can steal the query (below).

Force kind when auto is wrong

Query looks like Auto often picks Force
IPv4 :ip (ok) -
00:11:22:33:44:55 :mac (ok; MAC beats IPv6) -
17-char VIN :vin -
CVE-2021-44228 :cve -
@user / @user@host :social -
[email protected] :email -
https://... :url -
NPI 1679576722 :npi only with the NPI prefix prefix or kind: :npi
W1AW :callsign -
bare defunkt :username kind: :social + feeds: ["social_sweep"] if presence is the ask
Acme Robotics LLC :company -
birth record Jane Doe :vital_records keep the keyword
2ABIP-ESP32 :fcc_id kind: :fcc_id if no hyphen
10-15 digits :phone E.164 +1... if possible
free text name :person kind: :person

Read the full file on GitHub · 148 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. 6d ago First seen · 148 lines · 21 tokens per session scan A 6aa94be8acf3

Subscribe to this mod's changes

osint is a skill published in the GitHub repository 0dayInc/pwn (78 stars, last pushed yesterday), licensed MIT. It adds 21 tokens to every session and 1,624 once invoked, about $0.0001 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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