blacklist-ip SKILL.md skillA
blacklist-ip from hackingyseguridad/ia is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add hackingyseguridad/ia/blacklist-ip@git:20260704.369a460Pins git:20260704.369a460 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- hackingyseguridad/ia
- Path
.claude/skills/listanegra/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260704.369a460, committed Jul 4, 2026
- First version recorded
- Jul 1, 2026
- Size
- 16,326 bytes
- Repository stars
- 3
- License
- a license file GitHub does not identify
Usar esta skill SIEMPRE que el usuario quiera comprobar si una IP, rango de IPs o dominio está en una lista negra (blacklist), RBL o DNSBL (Spamhaus, SORBS, Barracuda, UCEPROTECT, abuse.ch, etc.). Activar cuando se mencionen: lista negra, blacklist, DNSBL, RBL, IP listada/bloqueada, reputación de IP, spam blacklist, comprobar reputación de dominio/correo, deliverability de email, servidor SMTP bloqueado, IP marcada como spam/phishing/malware/botnet/ proxy abierto, o códigos de retorno de…
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
# Blacklist IP Skill — hackingyseguridad/listanegra Skill de auditoría de reputación IP contra RBL/DNSBL. El repositorio contiene varios scripts en shell con distintos grados de robustez, ficheros de listas/DNS de apoyo, una tabla completa de referencia de listas (`LISTAS.md`) y los códigos de retorno de Spamhaus documentados en el `README.md`. Este SKILL.md está verificado línea a línea contra el código real de cada script (no solo contra la documentación del README, que en algunos puntos no coincide con el comportamiento real — ver sección de advertencias más abajo). Motivo por el que una IP acaba en lista negra (contexto para el análisis y el informe): 1. Spam de correo electrónico, phishing, scam, servicios de spam-support, bulletproof hosting, spambots. 2. Sitios de phishing / suplantación de identidad. 3. Distribución de malware / equipos infectados. 4. Command & Control de botnets / equipos zombis. 5. Proxies abiertos HTTP/SOCKS comprometidos. Impacto de estar listado: rechazo o filtrado a spam de los correos salientes, pérdida de reputación ante ISPs, y en agresivas incluso bloqueo de rangos CIDR completos (p.ej. `/24`) o …
Read the whole file at its exact version.
How to install
mdr add hackingyseguridad/ia/blacklist-ip@sha256:8b7d468b9f9baf3aThe line at the top of this page pins the label git:20260704.369a460, 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_uwpvxo22jvxi33tp)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Jul 1, 2026 and Jul 4, 2026, about one every 2 days. Its first recorded version is graded C and its latest A.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260704.369a460 latest | 2026-07-04 | 369a460 | 16,326 B | A | view · diff |
| git:20260701.d677d80 | 2026-07-01 | d677d80 | 7,937 B | A | view · diff |
| git:20260701.614f969 | 2026-07-01 | 614f969 | 1 B | C | 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 (16326 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
hackingyseguridad/ia · 3 stars · license a license file GitHub does not identify · pushed 2026-10-22 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_uwpvxo22jvxi33tp GET https://markdownregistry.com/api/v1/resolve?ref=hackingyseguridad/ia/blacklist-ip GET https://markdownregistry.com/api/v1/blob/8b7d468b9f9baf3a9a38887cdff26c76e0936e78904cb2fa6fc222f9cff6e4ce
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.