Lifetime access · one-time $9

The prompts behind every Septim ship.

24 curated Claude Code prompts for solo founders. Scope, design, engineering, legal, launch. Every one has been used on a real Septim Labs launch. Copy, paste, ship.

Buy the Prompts Pack — $9 →

One-time · lifetime updates · 30-day guarantee

Requires any Claude interface — free Claude.ai, Claude Code, or a paid plan. You bring the subscription.

Note: Prompts that reference professional roles (e.g. “act as an attorney,” “act as a CPA”) are drafting aids, not professional advice. For legal, tax, medical, or financial decisions, consult a licensed professional.

# A taste — one of the 24 prompts I want to build [ONE-LINE DESCRIPTION OF IDEA]. Act as a skeptical cofounder. Give me: 1. The most plausible ICP in one sentence (a specific named community if possible — subreddit, trade association, software category). 2. Three reasons this idea fails. 3. Three structural reasons an incumbent hasn't built it (real reasons, not "they're asleep"). 4. The smallest possible first version — what do I ship in one weekend that would get me to first dollar. 5. The dumbest possible pricing that doesn't require subscription infra. 6. The one landing-page headline that would make this ICP click buy in under 10 seconds. Be direct. Don't congratulate me.
24
prompts
5
categories
0
cost to run (your sub)
$9
once · lifetime
// the categories

Five categories. Every solo-founder moment.

1 · Scope & planning

Turn vague ideas into real plans

6 prompts for the "I have an idea, make it ship-shaped" moment.

  • Scope a new product from a one-liner
  • Cut scope ruthlessly before launch
  • Decide between two directions
  • Find the novel wedge in a crowded space
  • Kill a feature before wasting a weekend
  • "What should I ship today?"
2 · Design & copy

Write headlines. Pick colors. Build pages.

6 prompts that turn Claude into your design team.

  • Write 5 hero headlines with structure variants
  • Name a product (6 gates)
  • Pick an accent color (palette-aware)
  • Write a subhead for a committed headline
  • Critique my landing page honestly
  • Write microcopy for a blue-collar ICP
3 · Engineering

Architect. Review. Debug.

6 prompts for the "should I build this or not" calls.

  • Build vs buy for infrastructure
  • Code review for the risks I miss
  • Fix a bug I don't understand
  • Architect a new feature end-to-end
  • Stack audit — am I over-engineered?
  • Debug a webhook that isn't firing
4 · Legal & trust

ToS. Privacy. Refunds. Edge cases.

6 prompts for the "is this safe to ship?" moment.

  • Draft a ToS for a new product
  • Draft a Privacy Policy
  • Is this marketing claim defensible?
  • Write the refund policy page
  • Handle a specific customer edge case
  • Incident response plan when something breaks
5 · Launch & growth

Show HN. Reddit. X. Cold email.

6 prompts for the traffic event.

  • Draft a Show HN post + first self-reply
  • Reddit post for a specific subreddit (with anti-spam framing)
  • X/Twitter launch thread (5 tweets)
  • Cold email to a named prospect + follow-up
  • Reply to a mean HN comment
  • Decide which channel to launch next
// how they work

Every prompt has three sections.

No fluff. Each `.md` file gives you:

Section 1

## PROMPT

The copy-paste block. With [BRACKETS] marking the variables you swap in.

Section 2

## WHEN TO USE

The specific founder moment this prompt fits. Skip it when it doesn't fit.

Section 3

## EXAMPLE OUTPUT

What "good" looks like, so you can verify Claude is on track before building on the result.

// the price

Twenty-four prompts. Nine dollars.

$9
one-time · lifetime updates · 30-day guarantee
  • ✓24 prompts across 5 founder-facing categories
  • ✓Private GitHub repo with every future prompt free
  • ✓Runs on your existing Claude Code subscription
  • ✓Commercial use on your own products
  • ✓30-day no-questions refund
Buy the Prompts Pack — $9
// FAQ

Straight answers.

Why $9?

Impulse-buy territory. If 100 solo founders try this and tell 1 friend, we've done our job. Smaller price, higher volume, faster feedback.

Aren't prompts "just words"?

Yes. And every word was tuned on a real Septim launch. The difference between a ship and a miss is often 10 specific words in the prompt that most people leave out.

Do I need Claude Code or Claude Pro?

Any Claude interface works. Claude Code recommended for the engineering prompts; Claude.ai web is fine for the rest. No API keys or extra infrastructure.

Refund?

30 days, no questions.