# W8 | anthropic/claude-opus-5 | run 1

## Prompt

Write 3 subject-line options (under 8 words each) for a re-engagement email to users inactive for 60 days: one curiosity-driven, one benefit-driven, one urgency-driven. Label which is which.

## Response

Here are three subject-line options for a 60-day inactive re-engagement email:

## Options

**Curiosity-driven** — "You left something behind" (4 words)

**Benefit-driven** — "Your unused features are waiting inside" (6 words)

**Urgency-driven** — "48 hours before your account pauses" (6 words)

## Quick Notes on Each

| Type | Why it works | Watch out for |
|---|---|---|
| Curiosity | Creates an open loop the reader must resolve; vague enough to feel personal | Can read as clickbait if the body doesn't deliver a specific "something" |
| Benefit | Reminds users of value they've already paid for or signed up for | Needs personalization tokens (actual feature names) to avoid feeling generic |
| Urgency | Deadline pressure drives the fastest open and click rates | Only use if the deadline is real — false scarcity damages sender reputation |

For a 60-day window, the urgency line typically wins on open rate but the benefit line usually wins on downstream activation, since it re-frames the product rather than just triggering a defensive click.

Want me to draft matching preview text and body copy for the strongest option?
