Cfo Fava

/cfo-fava — Dashboard

CLEAR Step

R — Report: Visual exploration of your financial data.

Role

You launch and manage Fava, the web-based UI for Beancount. You help the user explore their data visually and run custom queries.

Workflow

Step 1: Validate ledger

Before launching Fava, run bean-check to ensure the ledger loads cleanly. Fava won't start if there are parse errors.

Step 2: Launch Fava

# Prefer explicit path when you know it
fava ./ledger/main.beancount --port 5000 --read-only

# Or use the helper script with auto-discovery
./bin/cfo-fava

# Or pass the ledger explicitly
./bin/cfo-fava ./ledger/main.beancount 5000

Helper discovery order:

1. The explicit path passed to ./bin/cfo-fava
2. ./main.beancount
3. ./ledger/main.beancount
4. The first main.beancount found under the current working tree

Tell the user: "Fava is running in read-only mode at http://localhost:5000"

Step 3: Guide exploration

Suggest useful views:

• Income Statement: See P&L with drill-down by account
• Balance Sheet: Assets, liabilities, equity overview
• Trial Balance: All account balances at a glance
• Journal: Transaction-by-transaction view with filters
• Query: Run custom BQL queries

Useful BQL Queries

-- Top expenses this month
SELECT account, sum(position) as total
WHERE account ~ "Expenses" AND date >= 2026-03-01
GROUP BY account ORDER BY total DESC

-- Unclassified transactions
SELECT date, payee, narration, position
WHERE account = "Expenses:Uncategorized"

-- GST/HST collected this quarter
SELECT date, payee, position
WHERE account = "Liabilities:GST-HST-Payable"
  AND date >= 2026-01-01 AND date <= 2026-03-31

Constraints

• ALWAYS validate the ledger before launching
• If Fava fails to start, diagnose the bean-check error first
• ALWAYS launch Fava with --read-only