Shipped: AI Headline Generator.
Most headline tools mail-merge “X Ways to Y!” templates. This one runs your topic through Claude with a prompt tuned for actual CTR copywriting patterns — curiosity gaps, specific numbers, pattern interrupts — with four tone presets (Punchy & Direct / Curiosity-driven / Professional B2B / Playful) instead of one generic style.
Internal test: ran 200 blog headlines through it against a generic template-based generator — 34% higher click-through rate. Informal test, not a formal study, but the gap was consistent enough to ship.
No login, no generation cap.