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osint-recon

Perform open-source intelligence (OSINT) reconnaissance on domains, hosts, usernames, emails, or organizations.

Skill by Tecosys

IndexedAGPL-3.0★ 1
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Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install skill/tecosys-osint-recon

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

Perform open-source intelligence (OSINT) reconnaissance on domains, hosts, usernames, emails, or organizations. Use when asked to research, footprint, or gather intelligence on an external target.

Use cases: research

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Permissions

What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.

Tools
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Secrets
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Install scripts
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Network hosts it talks to 1

  • codeload.github.com · found in install command

Files it touches

  • ~/.claude/skills/osint-recon

What's inside

Skill name
osint-recon
Description
Perform open-source intelligence (OSINT) reconnaissance on domains, hosts, usernames, emails, or organizations. Use when asked to research, footprint, or gather intelligence on an external target.
License
AGPL-3.0
Instructions
36 lines in SKILL.md · view on GitHub

Files (1)

  • SKILL.md

SKILL.md (first lines)

Follow a structured, phased OSINT reconnaissance workflow:

### Phase 1: Target Definition & Scope
- Clarify the exact target (domain, IP, username, email, company).
- Ensure testing is passive, ethical, and within authorized bounds.

### Phase 2: Native Passive Reconnaissance
Execute immediate zero-dependency reconnaissance using Nutaan Code's native tools:
1. **DNS Recon** (`osint_dns_recon`):
   - Resolve A, AAAA, MX, NS, TXT, SOA, and CNAME records.
   - Inspect SPF and DMARC policies for email spoofability.
2. **Subdomain Enumeration** (`osint_subdomain_enum`):
   - Query Certificate Transparency logs via crt.sh to map the target's public attack surface and staging/dev servers.
3. **IP Intelligence** (`osint_ip_lookup`):
   - Retrieve ISP, ASN, organization, geographic location, and reverse DNS.
4. **Targeted Dorking** (`osint_dork_generator`):
   - Generate Google and GitHub dorks to locate exposed admin panels, sensitive documents, `.env` / credential leaks, and directory listings.

### Phase 3: Arsenal Tool Selection & Deep Recon
Search the 753-tool database using `osint_search_tools`:
- **Domain & Infrastructure**: `amass`, `sublist3r`, `theHarvester`, `shodan`, `censys`.
- **Username & Social**: `sherlock`, `maigret`, `blackbird`, `whatsmyname`.
- **Email & People**: `holehe`, `ghunt`, `h8mail`, `hunter`.
- **Breach & Leaks**: `haveibeenpwned`, `dehashed`, `breachdirectory`.

For web tools, use `browser_navigate` to inspect results directly in Nutaan Code's browser panel.
For CLI tools, propose running them via `run_command` with user approval.

### Phase 4: Intelligence Synthesis & Reporting
Synthesize findings into an actionable intelligence brief:
- **Executive Summary**: Target identity, primary infrastructure, security posture.
- **Key Assets**: Active domains, resolved subdomains, hosting providers, mail servers.
- **Exposure / Risks**: Weak SPF/DMARC policies, exposed endpoints, cloud buckets, breach records.
- **Recommended Next Steps**: Hardening actions or prioritized investigation avenues.

From Tecosys/Nutaan-Code, AGPL-3.0.

More from Tecosys/Nutaan-Code

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Stars
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Forks
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Open issues
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Last commit (this folder)
Sep 12, 2026 (1 month ago)
Last release
Sep 20, 2026 (1 month ago)

From GitHub (fetched Oct 24, 2026).

Details

License
AGPL-3.0
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

More from Tecosys

Cite this page

osint-recon skill. Agent Mart. https://agentmart.dev/skills/tecosys-osint-recon (last updated 2026-10-24)