Launching a SaaS is 90% writing. Launch tweets, Show HN posts, README intros, cold emails, changelogs, waitlist emails. I spent weeks writing and testing prompts for each one.
Here are the 7 prompts that saved me the most time, with examples of what they produce.
1. The Launch Tweet Prompt
Most launch tweets fail because they lead with features instead of pain. This prompt fixes that:
Write 3 launch tweets for [PRODUCT]. Each must:
- Be under 280 chars including link
- Lead with the problem or a specific result
- Include one concrete number
- Vary tone: one confident, one humble, one data-driven
- End with a soft CTA
2. The Show HN Post Prompt
Write a Show HN post for [PRODUCT]. Constraints:
- Title under 80 chars, starts with "Show HN:"
- Body: what it does (2 sentences), why I built it (2 sentences), what's interesting technically (2 sentences)
- No marketing language. Write for engineers.
- End with a specific question to invite discussion.
3. The Cold Email Prompt
Write a cold email to [RECIPIENT] about [PRODUCT].
- Under 120 words
- First line references something real they did or wrote
- One sentence on what the product is
- One sentence on why I'm emailing them specifically
- Soft ask: "Would you try it and tell me what's broken?"
- No "reaching out" or "I hope this finds you well"
4. The README Intro Prompt
Write a README intro for [PRODUCT].
- Start with what the tool does in one sentence
- Why it exists (the pain it solves)
- Quick start: 3 commands maximum
- No buzzwords. Write for a developer who skims.
5. The Changelog Prompt
Write a changelog entry for this release: [CHANGES].
- Group by: Added / Changed / Fixed
- Each entry is one sentence, starts with a verb
- Include version number
- Link to full diff
6. The Waitlist Email Prompt
Write a waitlist email for [PRODUCT] launching in [TIMEFRAME].
- Under 150 words
- Acknowledge they've been waiting
- One concrete thing they can do now
- End with a question to drive replies
7. The Pricing Page Prompt
Write pricing page copy for [PRODUCT] with 3 tiers: [TIER 1], [TIER 2], [TIER 3].
- For each tier: name, one-line description, price, 4-5 features
- Highlight the recommended tier
- Focus on outcomes, not features
Every prompt was run 5 times against different products. If the output was inconsistent or generic, I tightened the constraints until it worked reliably.
The complete pack with all 7 prompts, full instructions, and sample outputs is $9: https://innovate01.gumroad.com/l/qevvy
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