cesarjoquin/marketing-skills · skills/copywriting/SKILL.md

copywriting skillA

copywriting is agent-read markdown (skill) from cesarjoquin/marketing-skills: When the user wants to write, rewrite, or improve marketing copy for any page — including homepage, landing pages, pricing pages, feature pages, about pages, or product pages. Also use when the user says "write copy for," "improve this copy," "rewrite this page," "marketing copy," "headline help," "CTA copy," "value proposition," "tagline," "subheadline," "hero section copy," "above the fold," "this copy is weak," "make this more compelling," or "help me describe my product." Use this whenever s.

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 cesarjoquin/marketing-skills/copywriting@v2.0.1
Exact content
mdr add cesarjoquin/marketing-skills/copywriting@sha256:ecdaabca28863d14

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_b5yze4tufb4z4dl4.svg)](https://markdownregistry.com/a/art_b5yze4tufb4z4dl4)

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Versions

versioncommittedcommitsizeaudit
v2.0.1 latest2026-06-17 828a04d 7,627 BA view · diff
v2.0.02026-06-17 d2917ef 7,627 BA view · diff
v2.0.02026-05-14 75fcce7 7,543 BA view · diff
v1.1.02026-03-04 3a7b0ae 7,533 BA view · diff
v1.1.02026-03-04 c9092cb 7,233 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 (7627 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

cesarjoquin/marketing-skills · 183 stars · license MIT · pushed 2026-09-03 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_b5yze4tufb4z4dl4
GET https://markdownregistry.com/api/v1/resolve?ref=cesarjoquin/marketing-skills/copywriting
GET https://markdownregistry.com/api/v1/blob/ecdaabca28863d1472f79ba637842fdf4ac2fd9acc92b215ab7f152e757b2a33