1. Diagnosis The draft is too vague: “marketing email” could mean onboarding, launch, newsletter, re-engagement, or sales. It gives no context about the product, audience, or value proposition, so the AI will likely generate generic copy. The goal (“more people clicking through and signing up”) is not stated inside the prompt, so the model can’t optimize for conversions. There are no constraints on tone, length, structure, or formatting, increasing the chance of bloated or unfocused output. The desired deliverables (subject line + CTA) are missing from the draft itself. It does not instruct the model to emphasize persuasion techniques like urgency, curiosity, benefits, or clarity. 2. Improved prompt You are an expert SaaS email copywriter specializing in high-converting promotional emails. Write a short, punchy marketing email designed to maximize click-throughs and free-trial signups for the following product: PRODUCT: [PRODUCT NAME] TARGET AUDIENCE: [WHO THE PRODUCT IS FOR] MAIN BENEFIT: [BIGGEST VALUE OR OUTCOME] KEY FEATURES: [OPTIONAL FEATURES OR DIFFERENTIATORS] TONE: [E.G. BOLD, FRIENDLY, PREMIUM, PLAYFUL] CALL TO ACTION: [FREE TRIAL LINK OR CTA TEXT] Requirements: - Write for busy readers with short attention spans. - Focus on benefits and outcomes, not feature-heavy explanations. - Use persuasive but natural language. - Keep the body under 150 words. - Include: 1. 3 subject line options 2. A preview text line 3. The email body 4. One clear call to action - Avoid clichés, hype, and spammy wording. - Make the CTA feel compelling and low-friction. Output format: Subject Line Options: 1. 2. 3. Preview Text: Email Body: CTA: 3. What changed and why | Upgrade | Why it helps | | --- | --- | | Assigned a clear role (“expert SaaS email copywriter”) | Pushes the model toward stronger marketing instincts and conversion-focused writing | | Added placeholders for product and audience context | Prevents generic output and makes the email more relevant and persuasive | | Explicitly stated the conversion goal | Helps the AI optimize for clicks and free-trial signups instead of general branding | | Added length constraints | Encourages concise, high-impact copy that performs better in email | | Specified required components | Ensures the output includes subject lines, preview text, and CTA without needing follow-up prompts | | Directed the model to focus on benefits | Improves persuasion by emphasizing outcomes users care about | | Added tone control | Makes the copy easier to align with the brand voice | | Included anti-spam guidance | Reduces cheesy or low-credibility marketing language | | Defined a strict output format | Produces cleaner, ready-to-use results with less editing | 4. Optional power-ups “ Generate 3 distinct versions targeting different emotional angles (curiosity, urgency, and aspiration).” “ After writing the email, briefly explain why the CTA is likely to convert.” “ Score each subject line from 1–10 for click potential and explain the reasoning.”