RC
Runway Calculator
🔵 Stable🕐 updated 2026-06-27
🔷 SkillSpec L3
⚙ ships an executable helper
pm-calculators
Calculate cash runway, burn, and the zero-cash date — and whether you're default alive or dead. Use when asked to work out runway, monthly burn, when the money runs out, or how much to raise/cut to reach a target. Produces a computed runway summary (net burn, months of runway, zero-cash date, default alive/dead) plus what it takes to extend it.
📚 Based on Default Alive or Dead — Paul Graham (Y Combinator)
What to give it
▸Cash in bank — (today).
▸Monthly revenue — and monthly expenses (or net monthly burn directly).
▸Monthly growth rate — of revenue, if you want the default-alive check.
▸Target — a runway you want to reach (e.g. 18 months) or a raise you're considering.
✅ The bar it holds itself to
Every skill in this library self-verifies — these are this skill's own quality checks, straight from its definition.
✓Net burn = expenses − revenue (not gross spend) — and the zero-cash date is an actual date
✓The default-alive/dead question is answered explicitly
✓"To extend it" gives concrete cut/raise/growth options with their month impact
✓Flags that the figures assume flat burn if burn is actually growing
✓Recommends a cash buffer rather than planning to literally zero
⚠️ What it refuses to do
Do not report runway off gross spend — net burn (after revenue) is the real number
Do not assume flat burn silently — if headcount/spend is rising, say the runway is optimistic
Do not plan to zero cash — a raise takes 3–6 months; runway should be measured to "must-raise-by," not "broke"
Do not ignore growth — a fast-growing company can be default alive even while burning
Do not present one scenario — show the cut-vs-raise-vs-grow trade-off
Install
npx pm-claude-skills add --agent claude # or codex · cursor · gemini · hermes
# or one-line MCP (every skill, any client):
claude mcp add pm-skills -- npx -y pm-claude-skills-mcpRelated skills
🔌 Embed this skill
Drop this on your blog, docs, or site — it renders a "Run this skill" card:
<div data-pm-skill="runway-calculator"></div>
<script src="https://mohitagw15856.github.io/pm-claude-skills/embed.js" async></script>💬 Discussion
Runway Calculator is one of 599 open-source professional AI agent skills — all SkillSpec L3.
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