sergebulaev/facebook-skills · skills/fb-hook-extractor/SKILL.md

fb-hook-extractor skillA

fb-hook-extractor is agent-read markdown (skill) from sergebulaev/facebook-skills: Reverse-engineer the hook from a high-share Facebook Page post, from its URL or pasted text. Identifies which of the 10 canonical 2026 Facebook formulas it uses (one-line opinion, tiny number, ask-the-page question, this-or-that, behind-the-scenes, story post, announcement, spotlight), explains why it earned shares or comments, and returns a blank template mapped to your topic. Use to learn from a Page post you admire. Not for writing your own (use fb-post-writer)..

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add sergebulaev/facebook-skills/fb-hook-extractor@git:20260905.3ba7f2b
Exact content
mdr add sergebulaev/facebook-skills/fb-hook-extractor@sha256:e4fc8735c199a4e0

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_u2ix275rbn6pvki4.svg)](https://markdownregistry.com/a/art_u2ix275rbn6pvki4)

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Versions

versioncommittedcommitsizeaudit
git:20260905.3ba7f2b latest2026-09-05 3ba7f2b 4,168 BA view · diff
git:20260702.63f3dfc2026-07-02 63f3dfc 4,142 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (4168 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

GitHub

sergebulaev/facebook-skills · 30 stars · license MIT · pushed 2026-09-05 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_u2ix275rbn6pvki4
GET https://markdownregistry.com/api/v1/resolve?ref=sergebulaev/facebook-skills/fb-hook-extractor
GET https://markdownregistry.com/api/v1/blob/e4fc8735c199a4e0a68a211a8815591c0ff2b8a6f1165ee23556d485e0f14be7