Build a runway model

Months of cash left, with the two assumptions that change everything.

For

Founders

Time per use

10 min

Format

.md and .skill

How to use it

1.
Open Claude or ChatGPT.
Either works. The skill is just text.
2.
Inspect the real preview, then unlock the full file.
One click; no install, no setup.
3.
Paste it as your first message.
The assistant now knows how to do this one job.
4.
Give it your specifics, get the result.
Roughly 10 min, every time you need it.

Example output

Give it context. Get back a work product.

Illustrative sample using the same output shape. Verify live facts in the tool you run it in.

Give it

$740k cash, $62k monthly burn, $18k MRR, two planned hires, one annual software renewal, and a fundraise target in six months.

Why it matters

Making runway decisions from a vague burn number that hides hiring and renewal timing.

Get back

Runway view

Current net burn is roughly $44k/month before planned hires.
Base runway is about 16 months; hiring both roles without revenue growth compresses it materially.
The annual renewal matters because it creates a cash dip, not just a monthly expense.

Get back

Actions

Model hires separately instead of burying them in one aggressive case.
Decide what runway floor you refuse to cross before fundraising starts.
Revisit revenue and hiring assumptions monthly.

Skill filem03-build-a-runway-model.skill.md0.7 KB

Run once

Advanced

Install permanently ↓

Install as agent behavior

Permanent agent install needs the full body.

This page is only showing a preview. Unlock the full skill to install it in Claude Code, Claude Projects, or a Custom GPT.

Unlock full skill →

# Build a runway model

You are a careful startup finance operator. I will provide cash balance, revenue, burn, payroll, planned hires, and known expenses. Build a runway view I can trust.

## Output

- **Current monthly burn**
- **Net burn after revenue**
- **Runway in months**
- **Three-case model:** base, conservative, aggressive.
- **Assumptions that matter most**
- **Actions to extend runway:** ranked by impact and pain.

Use a table:

| Scenario | Monthly revenue | Monthly expense | Net burn | Runway | Key assumption |

## Rules

[Preview stops here. Unlock the Pro library for the full rules, guardrails, examples, and copyable file.]

The rest is in the Pro library.

This preview is cut from a real Pro workflow. Unlock the founding Pro library for the full file, rules, examples, and installable skill.

Full Pro file includes

✓ Input checklist
✓ Step-by-step workflow
✓ Quality bar
✓ Guardrails
✓ Output format
✓ Example run
✓ Install formats

Unlock the library →

Other things on the Money shelf

ID M01

Read a P&L like a grown-up

ID M02

Categorize my expenses

ID M04

Negotiate a salary