osint

osint is a skill for Claude Code from MingyiSecLab/Mingyi-Atlas. It costs 30 tokens per session (2,301 once invoked), scanned C, original, Apache-2.0.

A collection of methods for gathering publicly available information about people and organisations, including email addresses, social profiles, leaked data, employees and exposed secrets.

In plain words
What is it for?
Use it for email and employee discovery, social-media profiling, breach-data checks, GitHub secret searches and mapping an organisation's human and technical exposure.
Why use it?
It helps build a picture of a target's people, systems and publicly visible risks before security testing or investigation. It also keeps this information organised into useful leads.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit Use it for email and employee discovery, social-media profiling, breach-data checks, GitHub secret searches and mapping an organisation's human and technical exposure.

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Install with agentmods
npx agentmods add skills/mingyiseclab/mingyi-atlas/osint
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.

Any agent
npx skills add MingyiSecLab/Mingyi-Atlas --skill osint
Clone the repo
git clone --depth 1 https://github.com/MingyiSecLab/Mingyi-Atlas

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/mingyiseclab/mingyi-atlas/osint/github.svg)](https://agentmods.dev/skills/mingyiseclab/mingyi-atlas/osint)
Your own site
<a href="https://agentmods.dev/skills/mingyiseclab/mingyi-atlas/osint"><img src="https://agentmods.dev/badge/skills/mingyiseclab/mingyi-atlas/osint/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for osint

Your own site · 80×15
<a href="https://agentmods.dev/skills/mingyiseclab/mingyi-atlas/osint"><img src="https://agentmods.dev/badge/skills/mingyiseclab/mingyi-atlas/osint.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,301 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 2 findings. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00030 $0.02301
Opus 5 $0.00015 $0.01151
Sonnet 5 $0.00006 $0.00460
Haiku 4.5 $0.00003 $0.00230

Measured 9d ago against content hash 2c41c7645f50, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade C, and why

osint scanned grade C with 2 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 9d 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.

Downloads and executes remote codehighSupply chain

curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.

curl -s "https://api.shodan.io/shodan/host/<IP>?key=<SHODAN_KEY>" | python3 -m json.tool

Makes network callslowCapability

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

curl -s "https://api.github.com/orgs/<target>/repos?per_page=100" | \
src/skills/standard/recon/osint/SKILL.md · 236 lines

How it starts

The opening of the file, as written. The whole thing — 236 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Open Source Intelligence (OSINT) Knowledge Base

OSINT collects publicly available information about targets without any direct interaction. This intelligence informs social engineering, credential attacks, and helps map the human attack surface alongside technical infrastructure.

1. Email Harvesting

theHarvester

# Comprehensive email harvesting
theHarvester -d <target> -b all -l 500 -f theharvester_<target>.html

# Specific sources
theHarvester -d <target> -b google,bing,linkedin,twitter -l 200

# Output formats
theHarvester -d <target> -b all -f theharvester_<target> --screenshot screenshots/

Manual Email Pattern Discovery

# Common email formats to test
# [email protected]
# [email protected]
# [email protected]
# [email protected]

# Verify email format via MX + SMTP (if in scope)
dig <target> MX +short

Email Analysis Points

  • Naming convention: Determines brute-force pattern for credential stuffing
  • Role-based emails: security@, admin@, devops@ reveal team structure
  • Personal domains: Cross-reference with social media for password patterns
  • Catch-all detection: Some domains accept all addresses → harder to enumerate

2. Employee & Organization Enumeration

LinkedIn Intelligence

  • Search site:linkedin.com/in "<target company>" in Google
  • Note: Direct LinkedIn scraping may violate ToS — use public search results
  • Key data: Job titles, tech stack mentions, team sizes, recent hires

Organizational Mapping

Target Corp
├── Engineering (mentions: Kubernetes, Go, React)
│   ├── Platform Team (AWS, Terraform)
│   ├── Backend Team (Python, FastAPI)
│   └── Frontend Team (React, TypeScript)
├── Security
│   └── SOC Team (Splunk, CrowdStrike mentioned)
├── DevOps/SRE
│   └── (Jenkins, ArgoCD, Datadog mentioned)
└── IT
    └── (Okta, Jamf mentioned in job posts)

Tech Stack from Job Postings

Search job boards for:
"<target>" AND ("kubernetes" OR "terraform" OR "aws" OR "azure")
"<target>" AND ("react" OR "angular" OR "vue" OR "nextjs")
"<target>" AND ("python" OR "golang" OR "java" OR "rust")

Read the full file on GitHub · 236 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. 9d ago First seen · 236 lines · 30 tokens per session scan C 2c41c7645f50

Subscribe to this mod's changes

osint is a skill published in the GitHub repository MingyiSecLab/Mingyi-Atlas (11 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 30 tokens to every session and 2,301 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.