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, Ghost), and brand content-marketing blogs. Do NOT use for opening hooks, ledes, or post titles — use samber/cc-skills@copywriting-hooks instead. Not for landing-page, ad, or email copy.

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, Ghost), and brand content-marketing blogs. Do NOT use for opening hooks, ledes, or post titles — use samber/cc-skills@copywriting-hooks instead. Not for landing-page, ad, or email copy.