hermes-agent/optional-skills/research/domain-intel/SKILL.md
Teknium 31224b9b5c feat(optional-skills): declare platforms frontmatter for all 63 undeclared skills
Extends the Windows-gating work to the optional-skills/ tree. Every
SKILL.md that previously omitted the platforms: field now carries an
explicit declaration, which Hermes's loader (agent.skill_utils.
skill_matches_platform) honors to skip-load on incompatible OSes.

58 skills declared cross-platform (platforms: [linux, macos, windows]):
  autonomous-ai-agents/blackbox, autonomous-ai-agents/honcho
  blockchain/base, blockchain/solana
  communication/one-three-one-rule
  creative/blender-mcp, creative/concept-diagrams, creative/hyperframes,
  creative/kanban-video-orchestrator, creative/meme-generation
  devops/cli (inference-sh-cli), devops/docker-management
  dogfood/adversarial-ux-test
  email/agentmail
  finance/3-statement-model, finance/comps-analysis, finance/dcf-model,
  finance/excel-author, finance/lbo-model, finance/merger-model,
  finance/pptx-author
  health/fitness-nutrition, health/neuroskill-bci
  mcp/fastmcp, mcp/mcporter
  migration/openclaw-migration
  mlops/accelerate, mlops/chroma, mlops/clip, mlops/guidance,
  mlops/hermes-atropos-environments, mlops/huggingface-tokenizers,
  mlops/instructor, mlops/lambda-labs, mlops/llava, mlops/modal,
  mlops/peft, mlops/pinecone, mlops/pytorch-lightning, mlops/qdrant,
  mlops/saelens, mlops/simpo, mlops/stable-diffusion
  productivity/canvas, productivity/shop-app, productivity/shopify,
  productivity/siyuan, productivity/telephony
  research/domain-intel, research/drug-discovery, research/duckduckgo-search,
  research/gitnexus-explorer, research/parallel-cli, research/scrapling
  security/1password, security/oss-forensics, security/sherlock
  web-development/page-agent

5 skills gated from Windows (platforms: [linux, macos]):
  mlops/flash-attention   - Flash Attention wheels are Linux-first; Windows
                            install requires building from source with CUDA
  mlops/faiss             - faiss-gpu has no Windows wheel; gate rather than
                            leak partial (faiss-cpu) support
  mlops/nemo-curator      - NVIDIA NeMo ecosystem has no first-class Windows path
  mlops/slime             - Megatron+SGLang RL stack is Linux-only in practice
  mlops/whisper           - openai-whisper + ffmpeg setup on Windows is
                            non-trivial; gate until Windows install stanza lands

Methodology: scanned every SKILL.md for Windows-hostile signals
(apt-get, brew, systemd, osascript, ptrace, X11 binaries, POSIX-only
Python APIs, Docker POSIX $(pwd) bind-mounts, explicit 'linux-only' /
'macos-only' text). 3 skills flagged as having hard signals on review:
docker-management and qdrant only had POSIX $(pwd) docker examples and
the tools themselves (Docker Desktop, Qdrant) run fine on Windows —
declared ALL. whisper had an apt/brew ffmpeg install path and nothing
else but the openai-whisper Windows install story is rough enough to
warrant gating.

Strict-over-lenient policy: when in doubt, gate. Easier to un-gate after
verified Windows support lands than to leak partial support that
manifests as mid-task failures for Windows users.
2026-05-08 09:16:33 -07:00

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Markdown

---
name: domain-intel
description: Passive domain reconnaissance using Python stdlib. Subdomain discovery, SSL certificate inspection, WHOIS lookups, DNS records, domain availability checks, and bulk multi-domain analysis. No API keys required.
platforms: [linux, macos, windows]
---
# Domain Intelligence — Passive OSINT
Passive domain reconnaissance using only Python stdlib.
**Zero dependencies. Zero API keys. Works on Linux, macOS, and Windows.**
## Helper script
This skill includes `scripts/domain_intel.py` — a complete CLI tool for all domain intelligence operations.
```bash
# Subdomain discovery via Certificate Transparency logs
python3 SKILL_DIR/scripts/domain_intel.py subdomains example.com
# SSL certificate inspection (expiry, cipher, SANs, issuer)
python3 SKILL_DIR/scripts/domain_intel.py ssl example.com
# WHOIS lookup (registrar, dates, name servers — 100+ TLDs)
python3 SKILL_DIR/scripts/domain_intel.py whois example.com
# DNS records (A, AAAA, MX, NS, TXT, CNAME)
python3 SKILL_DIR/scripts/domain_intel.py dns example.com
# Domain availability check (passive: DNS + WHOIS + SSL signals)
python3 SKILL_DIR/scripts/domain_intel.py available coolstartup.io
# Bulk analysis — multiple domains, multiple checks in parallel
python3 SKILL_DIR/scripts/domain_intel.py bulk example.com github.com google.com
python3 SKILL_DIR/scripts/domain_intel.py bulk example.com github.com --checks ssl,dns
```
`SKILL_DIR` is the directory containing this SKILL.md file. All output is structured JSON.
## Available commands
| Command | What it does | Data source |
|---------|-------------|-------------|
| `subdomains` | Find subdomains from certificate logs | crt.sh (HTTPS) |
| `ssl` | Inspect TLS certificate details | Direct TCP:443 to target |
| `whois` | Registration info, registrar, dates | WHOIS servers (TCP:43) |
| `dns` | A, AAAA, MX, NS, TXT, CNAME records | System DNS + Google DoH |
| `available` | Check if domain is registered | DNS + WHOIS + SSL signals |
| `bulk` | Run multiple checks on multiple domains | All of the above |
## When to use this vs built-in tools
- **Use this skill** for infrastructure questions: subdomains, SSL certs, WHOIS, DNS records, availability
- **Use `web_search`** for general research about what a domain/company does
- **Use `web_extract`** to get the actual content of a webpage
- **Use `terminal` with `curl -I`** for a simple "is this URL reachable" check
| Task | Better tool | Why |
|------|-------------|-----|
| "What does example.com do?" | `web_extract` | Gets page content, not DNS/WHOIS data |
| "Find info about a company" | `web_search` | General research, not domain-specific |
| "Is this website safe?" | `web_search` | Reputation checks need web context |
| "Check if a URL is reachable" | `terminal` with `curl -I` | Simple HTTP check |
| "Find subdomains of X" | **This skill** | Only passive source for this |
| "When does the SSL cert expire?" | **This skill** | Built-in tools can't inspect TLS |
| "Who registered this domain?" | **This skill** | WHOIS data not in web search |
| "Is coolstartup.io available?" | **This skill** | Passive availability via DNS+WHOIS+SSL |
## Platform compatibility
Pure Python stdlib (`socket`, `ssl`, `urllib`, `json`, `concurrent.futures`).
Works identically on Linux, macOS, and Windows with no dependencies.
- **crt.sh queries** use HTTPS (port 443) — works behind most firewalls
- **WHOIS queries** use TCP port 43 — may be blocked on restrictive networks
- **DNS queries** use Google DoH (HTTPS) for MX/NS/TXT — firewall-friendly
- **SSL checks** connect to the target on port 443 — the only "active" operation
## Data sources
All queries are **passive** — no port scanning, no vulnerability testing:
- **crt.sh** — Certificate Transparency logs (subdomain discovery, HTTPS only)
- **WHOIS servers** — Direct TCP to 100+ authoritative TLD registrars
- **Google DNS-over-HTTPS** — MX, NS, TXT, CNAME resolution (firewall-friendly)
- **System DNS** — A/AAAA record resolution
- **SSL check** is the only "active" operation (TCP connection to target:443)
## Notes
- WHOIS queries use TCP port 43 — may be blocked on restrictive networks
- Some WHOIS servers redact registrant info (GDPR) — mention this to the user
- crt.sh can be slow for very popular domains (thousands of certs) — set reasonable expectations
- The availability check is heuristic-based (3 passive signals) — not authoritative like a registrar API
---
*Contributed by [@FurkanL0](https://github.com/FurkanL0)*