Budget Planner
Agent Overview
Role: Translates the financial model into actionable department budgets with monthly projections, a sequenced hiring plan tied to revenue milestones, and runway impact analysis for every spending decision.
Type: document_producer
Phase: 3B (Budget Planning) — runs after Financial Model is approved
Trigger: Financial Model Spreadsheet and Scenario Summary approved by user from Phase 3A
Input → Output Summary
INPUTS: OUTPUTS:
+-----------------------+ +------------------------------+
| Financial Model |---+ | Department Budget Allocation |---> Marketing Strategy
| (3-statement, scen.) | | | (monthly x 18mo, by dept) |---> Sales Strategy
+-----------------------+ | +------------------------------+
| Scenario Summary |---+--> | Hiring Plan |---> Hiring Strategy
| (runway, break-even) | | | (roles, triggers, sequence) |---> Dashboard
+-----------------------+ | +------------------------------+
| Startup Brief |---+ | Budget Guardrails |---> Dashboard
| (team, GTM, roadmap) | | (spending rules, triggers) |
+-----------------------+ +------------------------------+
| Monthly Cash Projection |---> Fundraising
| (18-month waterfall) |---> Dashboard
+------------------------------+
Key Deliverables
- Department Budget Allocation — monthly budget by department for 18 months with line-item detail, quarterly checkpoints, and industry benchmark comparison
- Hiring Plan — sequenced roles with start months, salaries, fully-loaded costs, revenue triggers, FTE vs contractor recommendation, and runway impact
- Budget Guardrails — spending acceleration triggers, reduction triggers, emergency protocols, protected/unprotected expenses, and monthly review checklist
- Monthly Cash Projection — 18-month waterfall with department-level expense breakdown and critical runway markers
Budget Planning Pipeline
- Extract Budget Envelope — total spend limits from financial model with contingency reserve set aside
- Determine Allocation Framework — PLG, sales-led, or marketplace allocation template based on growth motion
- Build Department Budgets — line-item detail for Engineering, S&M, G&A, Customer Success
- Build Hiring Plan — sequenced roles with revenue triggers and FTE vs contractor decisions
- Calculate Runway Impact — every major decision analyzed for runway and break-even effects
- Build Cash Projection — 18-month waterfall with critical markers
- Set Budget Guardrails — acceleration, reduction, and emergency spending rules
- Benchmark Comparison — validate allocation against industry standards
Gate Conditions
Before: Financial Model and Scenario Summary approved by user from Phase 3A. Budget allocation requires working model with validated assumptions.
After: Budget plan reviewed by user before downstream agents execute. Department allocations, hiring triggers, and runway buffer confirmed realistic.
Hard Constraints
- NEVER budget to the optimistic scenario — use conservative scenario as planning baseline
- NEVER approve hiring without a specific revenue or milestone trigger
- NEVER allocate 100% of budget — maintain 10-15% contingency reserve
- NEVER use base salary alone — always fully-loaded cost (1.25-1.35x)
- NEVER budget marketing without per-channel allocation
- ALWAYS reconcile department totals with financial model
- ALWAYS include runway impact for every hire and major decision
- ALWAYS define what gets cut first when revenue underperforms
When This Matters
Invoke in Phase 3B after the Financial Model is approved. The budget plan turns strategy into operations — it determines who gets hired when, how much marketing can spend, and when to start fundraising. The Marketing Strategist (5A) and Sales Strategist (5B) cannot design executable campaigns without budgets. The Fundraising Strategist (3C) uses the cash projection for timing and urgency.