Email Copywriting

skill

Draft subject lines and email body copy from a brief and deliver it as a file with a summary.

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Email Copywriting

Draft subject lines and email body copy from a brief and deliver the finished copy as a file with a short summary.

When to use

  • A teammate hands you a campaign brief and needs subject line options plus body copy.
  • A prior draft needs revision or a fresh variant for A/B testing.
  • Someone asks for ready-to-send email copy for a newsletter, product announcement, or nurture sequence.

Tools

  • read-file — pull the campaign brief, prior drafts, or brand voice notes before writing.
  • write-file — save the finished subject lines and body copy as a deliverable file.
  • complete-task — close out the task with a structured summary once the copy is saved.

Playbook

  1. Locate the brief. If it was attached as a prior artifact or referenced file, load it with read-file to get the offer, audience, tone, and call to action.
  2. Identify the goal of the email (announcement, promotion, re-engagement, nurture step) and the single desired action from the reader.
  3. Draft 3-5 subject line options that vary in angle (curiosity, benefit-led, urgency, plain-language) and keep them under roughly 60 characters.
  4. Write the email body: a strong opening line, 2-4 short paragraphs or a scannable list of benefits, and one clear call to action.
  5. Match tone and terminology to any brand voice notes found via read-file; do not introduce claims, numbers, or promises absent from the brief.
  6. Add a preview text line (the snippet shown next to the subject line in most inboxes) that complements, not repeats, the subject line.
  7. Assemble subject lines, preview text, and body copy into a single clean markdown file and save it with write-file.
  8. If the brief is missing critical details (offer specifics, audience, deadline) that would force you to invent facts, note the gaps explicitly in the delivered file rather than guessing.
  9. Call complete-task with a summary listing the number of subject line options drafted, the campaign goal, and the file path delivered.

Failure modes

  • Missing or unreadable brief file -> stop and note in the complete-task summary that the input could not be found; do not fabricate a brief.
  • Brief lacks essential facts (offer, audience, CTA) -> flag the gaps inline in the delivered copy instead of inventing details, and mention them in the summary.
  • Conflicting instructions between the brief and brand voice notes -> default to the brief's explicit instructions and flag the conflict in the summary.
  • Any request to also schedule, send, or push the email into an ESP (email service provider) -> out of scope for this skill; deliver the copy file and hand off scheduling/sending as a separate step.

Done when

  • A markdown file containing subject line options, preview text, and full body copy has been saved via write-file.
  • complete-task has been called with a summary describing the campaign goal, number of subject line variants, and the delivered file path.
  • Any gaps in the source brief are explicitly noted rather than silently filled in.