Bootstrapped Finance
Use this skill when the founder needs a practical view of cash, burn, commitments, and survival choices.
References
Load cash-and-runway.md before calculating runway, unit economics, or spend tradeoffs.
Required Inputs
Collect before concluding. Mark unknowns explicitly; do not invent figures.
- As-of date and currency
- Available cash vs restricted cash (taxes held, customer prepay reserves, escrow, collateral)
- Operating spend plus taxes, debt service, capital expenditures, and other committed cash outflows for the forecast window
- Receivables aging, payables, and known cash-timing lags
- Business model (SaaS, services, commerce, marketplace, other)
- Forecast horizon and whether burn is stable month to month
- For growth metrics: the period and denominator definitions the founder actually uses
Escalate to a qualified accountant, tax advisor, or counsel for tax filings, debt covenants, audited statements, or legal commitments. Request only necessary aggregates; avoid collecting unnecessary personal or confidential detail.
Workflow
- Establish the cash picture: available cash, obligations, variable spend, receivables, debt, and cash timing.
- Separate operating burn from total cash movement:
- Gross burn = cash operating outflows for the period
- Net burn = gross burn − collected operating inflows for the period
- Net cash outflow = all committed cash outflows due in the period, including operating spend, taxes, debt service, capital expenditures, and other obligations, minus all collected cash inflows
- Calculate runway from total net cash outflow, not operating burn alone:
- If monthly net cash outflow is positive, relatively stable, and includes every committed obligation:
runway months = available cash / monthly net cash outflow - If collections or mandatory outflows are seasonal, lumpy, or near break-even: build a month-by-month cash schedule and report the minimum cash point and first month cash would go negative
- If durable collected inflows cover all committed outflows and no known lumpy obligation creates a future deficit: report no finite runway under stated assumptions
- If monthly net cash outflow is positive, relatively stable, and includes every committed obligation:
- Check unit economics and cash timing before recommending growth. Branch metrics by business model; do not apply SaaS ARR, churn, or Rule of 40 metrics to services, commerce, or other models unless the founder supplies equivalent definitions.
- Identify the few decisions that most affect survival: hiring, pricing, collections, vendor spend, founder compensation.
- Evaluate hiring and tooling by fully loaded cost, ramp time, reversibility, and management load.
- Model base, upside, and downside (cash-stress) scenarios with explicit assumptions.
- Recommend the smallest set of actions that meaningfully improves survival odds, plus trigger points and review cadence.
Metric Rules
- State units, period, formula, and as-of date for every calculated figure.
- Return "not meaningful" when a denominator is zero or negative.
- Prefer collected cash over booked revenue for survival analysis.
- Treat external benchmarks as optional, sourced, dated context, not decision rules.
- If numbers are missing, ask for them before concluding.
Standards
- Cash timing matters more than revenue vanity.
- Do not average away seasonality or collection risk.
- Do not hide uncertainty in a single forecast.
- If the business needs fundraising to survive, say that plainly.
- Prefer reversible cost cuts before irreversible commitments.
- Hand off priority and calendar execution to
founder-priorities, investor-narrative review tofundraising-ask-review, pricing and packaging choices topricing-strategy, and focus-metric selection tonorth-star-metric. Own numerical funding gaps, runway, margin, and cash tradeoffs here.
Output
Return:
- Cash snapshot: available vs restricted cash, currency, as-of date
- Runway view: method used, calculation trace, minimum cash point if scheduled
- Scenario table: base, upside, downside with assumptions
- Biggest cash risks: timing, concentration, obligations
- Unit economics: model-appropriate metrics only; unknowns labeled
- Hiring / spend tradeoffs: fully loaded cost, ramp, reversibility
- Actions: minimal survival-improving moves, triggers, next review cadence
- Confidence and escalations: missing inputs, tax/covenant/legal handoffs