pentest-osint-recon

pentest-osint-recon is a skill for Claude Code, Codex from jd-opensource/JoySafeter. It costs 19 tokens per session (194 once invoked), scanned A, original, Apache-2.0.

A process for collecting publicly available information about an organization’s internet-facing systems. OSINT, or open-source intelligence, means information gathered from public sources rather than private access.

In plain words
What is it for?
Use it to find related domains and subdomains, identify technologies, search for public emails or leaks, connect assets together, and check software versions against vulnerability records.
Why use it?
It helps reveal the organization’s external attack surface, including subdomains, exposed assets, public contact details, and software weaknesses.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to find related domains and subdomains, identify technologies, search for public emails or leaks, connect assets together, and check software versions against vulnerability records.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jd-opensource/joysafeter/pentest-osint-recon
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 jd-opensource/JoySafeter --skill pentest-osint-recon
Clone the repo
git clone --depth 1 https://github.com/jd-opensource/JoySafeter

Made for: Claude Code, Codex.

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 pentest-osint-recon

README.md
[![agentmods](https://agentmods.dev/badge/skills/jd-opensource/joysafeter/pentest-osint-recon/github.svg)](https://agentmods.dev/skills/jd-opensource/joysafeter/pentest-osint-recon)
Your own site
<a href="https://agentmods.dev/skills/jd-opensource/joysafeter/pentest-osint-recon"><img src="https://agentmods.dev/badge/skills/jd-opensource/joysafeter/pentest-osint-recon/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 pentest-osint-recon

Your own site · 80×15
<a href="https://agentmods.dev/skills/jd-opensource/joysafeter/pentest-osint-recon"><img src="https://agentmods.dev/badge/skills/jd-opensource/joysafeter/pentest-osint-recon.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 19 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 194 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00019 $0.00194
Opus 5 $0.00010 $0.00097
Sonnet 5 $0.00004 $0.00039
Haiku 4.5 $0.00002 $0.00019

Measured 10d ago against content hash 84774b7a7e3e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

pentest-osint-recon 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 10d 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.

skills/pentest-osint-recon/SKILL.md · 21 lines

What it actually says

Pentest OSINT Recon

Purpose

Gather publicly available information about a target organization to map its external attack surface, including subdomains, emails, and exposed assets.

Core Workflow

  1. Domain Enumeration: Discover subdomains and related assets using amass and subfinder.
  2. Tech Profiling: Identify technologies used on discovered assets using httpx and whatweb.
  3. Information Gathering: Search for emails, leaks, and social media presence using theharvester and search engines.
  4. Asset Correlation: Correlate IP addresses, domains, and technologies to find weak spots.
  5. Vulnerability Intel: Check discovered software versions against CVE databases.

References

  • references/tools.md
  • references/workflows.md
Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 10d ago First seen · 21 lines · 19 tokens per session scan A 84774b7a7e3e

Subscribe to this mod's changes

pentest-osint-recon is a skill published in the GitHub repository jd-opensource/JoySafeter (307 stars, last pushed today), licensed Apache-2.0. It adds 19 tokens to every session and 194 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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