Marketing & contentframework
Newsletter operating template
Problem solved: Founder-run newsletters drift into "company updates"; a template enforces value-first content with retention benchmarks and UTM hygiene.
What
A newsletter skill packs 6 subject-line formulas, a 60/25/15 section structure (value / curation / company), and a retention red-flag table that fires when open-rate drops or unsubscribe-rate climbs past defined thresholds.
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