samber/cc-skills · skills/copywriting-cta/SKILL.md

copywriting-cta skillA

copywriting-cta is agent-read markdown (skill) from samber/cc-skills: Designs end-of-article CTAs — copy, layout, placement, A/B test plan, accessibility — for blog posts, newsletters, and essays. Use whenever the user asks to write, review, or improve a CTA at the bottom of an article; mentions "end-of-post CTA", "call-to-action", "signup box", "newsletter CTA", "subscribe block", or "what should I put at the bottom"; or asks how to turn readers into subscribers, leads, customers, or paying supporters. Covers personal blogs, paid newsletters (Substack, beehiiv, G.

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 samber/cc-skills/copywriting-cta@v1.1.2
Exact content
mdr add samber/cc-skills/copywriting-cta@sha256:bdc1e93bb28571f7

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_ewie5m4md2ssf4vd.svg)](https://markdownregistry.com/a/art_ewie5m4md2ssf4vd)

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Versions

versioncommittedcommitsizeaudit
v1.1.2 latest2026-09-02 f866b80 12,665 BA view · diff
v1.1.12026-09-01 7e64f91 12,665 BA view · diff
v1.1.02026-08-19 3aba328 12,998 BA view · diff
v1.0.02026-08-19 5561835 12,998 BA view · diff
v1.0.02026-05-19 abe415c 12,771 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 (12665 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

samber/cc-skills · 203 stars · license MIT · pushed 2026-09-07 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_ewie5m4md2ssf4vd
GET https://markdownregistry.com/api/v1/resolve?ref=samber/cc-skills/copywriting-cta
GET https://markdownregistry.com/api/v1/blob/bdc1e93bb28571f7f02ce5dd87ee4a26290486b9e592c82ae620ee38c55137ab