org-attack-surface SKILL.md skillA
org-attack-surface from elementalsouls/claude-osint is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add elementalsouls/claude-osint/org-attack-surface@v1Pins v1 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- elementalsouls/claude-osint
- Path
skills/org-attack-surface/SKILL.md- Versions recorded
- 4
- Latest version
- v1, committed Aug 24, 2026
- First version recorded
- Aug 6, 2026
- Size
- 64,123 bytes
- Repository stars
- 2,831
- License
- MIT
Org-grade attack-surface mapping: given a company's legal identity, discover its ENTIRE owned internet footprint — corporate family -> owned domains -> owned netblocks/ASN -> live assets — with attribution discipline, not just DNS breadth. The org-first attribution pyramid (legal entity -> LEI/registration -> corporate family -> owned domains -> owned netblocks/ASN -> live assets). Corporate-identity resolution via the GLEIF LEI API (legal name -> LEI, exact-LEI direct-children expansion…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Org Attack Surface — Corporate-Family Footprint Mapping > Companion skills: [`osint-methodology`](../osint-methodology/) (the "how to think" 5-stage recon > pipeline this plugs into) and [`offensive-osint`](../offensive-osint/) (the per-host arsenal you run > once this skill hands you owned domains/netblocks — see its §14 Public Records and §28 Infrastructure > OSINT for the tool directory this skill deepens rather than duplicates). This skill answers a > different, upstream question: **not** "what does `acme.com` expose", but "what does **Acme > Corporation, the legal entity**, own across every domain, netblock, and subsidiary it has — including > the parts with no DNS trail back to the seed at all." ## 0. When to Use / When NOT **Use this skill when:** - The engagement starts from a **company name or legal entity**, not a domain — you need to derive the domain(s) first, not just enumerate one. - You need to find an org's **subsidiaries, sister brands, or M&A-acquired footprint** that a DNS/CT-only sweep of one seed domain would never surface. - You suspect **"dark" IP space** — netblocks or ASNs registered to the org's legal entity with …
Read the whole file at its exact version.
How to install
mdr add elementalsouls/claude-osint/org-attack-surface@sha256:c42d2b490ec0f513The line at the top of this page pins the label v1, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_7phldvgbdld4w46h)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Aug 6, 2026 and Aug 24, 2026, about one every 6 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1 latest | 2026-08-24 | f4acf9e | 64,123 B | A | view · diff |
| v1 | 2026-08-10 | 66ffd91 | 64,071 B | A | view · diff |
| v1 | 2026-08-06 | 5677cb6 | 64,061 B | A | view · diff |
| v1 | 2026-08-06 | e0fef8b | 64,064 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (64123 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
elementalsouls/claude-osint · 2,831 stars · license MIT · pushed 2026-10-09 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_7phldvgbdld4w46h GET https://markdownregistry.com/api/v1/resolve?ref=elementalsouls/claude-osint/org-attack-surface GET https://markdownregistry.com/api/v1/blob/c42d2b490ec0f5136c6abf0a080fe09798bce9bdd6edb4d3520361a771a81965
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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