sergebulaev/linkedin-skills · .codex-marketplace/linkedin-skills/skills/linkedin-hook-extractor/SKILL.md

linkedin-hook-extractor skillA

linkedin-hook-extractor is agent-read markdown (skill) from sergebulaev/linkedin-skills: Reverse-engineer the hook formula from a viral LinkedIn post URL. Returns which of the 20 canonical 2026 formulas it uses (anaphora, R.I.P., year-pivot, time-anchor, curiosity-gap, contrarian, comment-gate, emotional cold-open, named-gratitude, and 11 more), why it worked, and a blank template. Use to learn from a competitor's post, not to write your own (use linkedin-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/linkedin-skills/linkedin-hook-extractor@git:20260905.388f0c3
Exact content
mdr add sergebulaev/linkedin-skills/linkedin-hook-extractor@sha256:5e6aa331d8bc433e

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_7a3kdcawjl3nbbmw.svg)](https://markdownregistry.com/a/art_7a3kdcawjl3nbbmw)

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Versions

versioncommittedcommitsizeaudit
git:20260905.388f0c3 latest2026-09-05 388f0c3 4,405 BA view · diff
git:20260903.bb42f732026-09-03 bb42f73 4,037 BA view · diff
git:20260630.b4fc4c02026-06-30 b4fc4c0 3,125 BA view · diff
git:20260521.65b8a912026-05-21 65b8a91 2,699 BA view · diff
git:20260519.c6274552026-05-19 c627455 2,728 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 (4405 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/linkedin-skills · 1,169 stars · license MIT · pushed 2026-09-06 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_7a3kdcawjl3nbbmw
GET https://markdownregistry.com/api/v1/resolve?ref=sergebulaev/linkedin-skills/linkedin-hook-extractor
GET https://markdownregistry.com/api/v1/blob/5e6aa331d8bc433e11861207bb5b7a2b65cd7a865e4baabe68a1fbea2833ebe6