Wells Fargo Income Statement

For Claude: How to Use This Skill

Skill instructions are preloaded in context when this skill is active. Do not perform filesystem searches or tool-driven exploration to rediscover them; use the guidance below directly.

When To Use

• Generate monthly or multi-month income statements from Wells Fargo transaction data.
• Categorize transactions into income and expense line items.
• Produce human-readable Markdown and machine-readable JSON reports.
• Persist income statement snapshots into SerenDB for downstream analysis.

Prerequisites

• The bank-statement-processing skill must have completed at least one successful run with SerenDB sync enabled.
• SerenDB must contain populated wf_transactions and wf_txn_categories tables.

Safety Profile

• Read-only against SerenDB source tables (wf_transactions, wf_txn_categories, wf_monthly_summary).
• Writes only to dedicated wf_income_* tables (never modifies upstream data).
• No browser automation required.
• No credentials stored or transmitted.
• All amounts sourced from already-masked account data.

Workflow Summary

1. resolve_serendb connects to SerenDB using the same resolution chain as bank-statement-processing.
2. query_transactions fetches categorized transactions for the requested date range.
3. classify_line_items maps transaction categories to income statement line items using config/line_item_map.json.
4. build_statement aggregates line items into Income, Expenses, and Net Income sections.
5. render_report produces Markdown and JSON output files.
6. persist_statement upserts the income statement snapshot into SerenDB.

Quick Start

1. Install dependencies:

cd wellsfargo/income-statement
python3 -m pip install -r requirements.txt
cp .env.example .env
cp config.example.json config.json

2. Generate an income statement for the last 12 months:

python3 scripts/run.py --config config.json --months 12 --out artifacts/income-statement

3. Generate a statement for a specific date range:

python3 scripts/run.py --config config.json --start 2025-01-01 --end 2025-12-31 --out artifacts/income-statement

Commands

# Last 12 months (default)
python3 scripts/run.py --config config.json --months 12 --out artifacts/income-statement

# Specific date range
python3 scripts/run.py --config config.json --start 2025-06-01 --end 2025-12-31 --out artifacts/income-statement

# Single month
python3 scripts/run.py --config config.json --start 2025-11-01 --end 2025-11-30 --out artifacts/income-statement

# Skip SerenDB persistence (local reports only)
python3 scripts/run.py --config config.json --months 12 --skip-persist --out artifacts/income-statement

Outputs

• Markdown report: artifacts/income-statement/reports/<run_id>.md
• JSON report: artifacts/income-statement/reports/<run_id>.json
• Line-item export: artifacts/income-statement/exports/<run_id>.line_items.jsonl

SerenDB Tables

• wf_income_runs - income statement generation runs
• wf_income_line_items - individual line items per run
• wf_income_snapshots - summary totals per run

Reusable Views

• v_wf_income_latest - most recent income statement snapshot
• v_wf_income_by_month - monthly income/expense breakdown