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Email Composer

Verified

Professional email drafting agent that adapts tone, structures persuasive messages, and handles follow-ups, cold outreach, and internal communications.

By Anthropic 5,100 v1.2.0 Updated 2026-03-10

Install

Claude Code

Copy the SKILL.md file to your project's .claude/skills/ directory

About This Skill

Email Composer is a communication skill that crafts professional emails for any business context. From cold outreach to sensitive internal communications, it adapts tone, structure, and persuasion techniques to match the audience and objective of each message.

How It Works

  1. Context gathering — Analyzes the recipient, relationship, objective, and any prior conversation context you provide
  2. Tone calibration — Selects the appropriate formality level, from casual internal to formal executive communication
  3. Structure optimization — Applies proven email frameworks (AIDA for outreach, Situation-Complication-Resolution for updates, etc.)
  4. Draft generation — Writes the full email with a compelling subject line, clear CTA, and appropriate sign-off
  5. Variant creation — Optionally produces A/B test variants with different subject lines or opening hooks

Best For

  • Sales teams drafting personalized outreach at scale
  • Managers communicating org changes or difficult decisions
  • Founders writing to investors, partners, or advisors
  • Anyone who spends too long staring at an empty compose window

Use Cases

  • Cold outreach emails for sales and partnerships
  • Follow-up sequences after meetings or demos
  • Internal team announcements and updates
  • Difficult conversations like negotiations or complaints

Pros & Cons

Pros

  • + Adapts tone from casual to formal automatically
  • + Uses proven email frameworks for maximum impact
  • + Generates subject line variants for A/B testing

Cons

  • - Cannot send emails directly — output requires manual copy-paste
  • - Cold outreach effectiveness depends heavily on targeting accuracy

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