Build your family business’s own ERP with Claude Code

Goal: Replace commercial business software with our own, built with AI.
Setup: agents used in source: Claude; tools/MCPs stated: SQL.
Steps:
1. Write procedures down; every incident becomes a dated rule the agents read.
2. Use an approval loop: review the day’s decisions from your phone; nothing with money moves without a human click.
3. Keep production and testing in separate copies with separate databases.
4. Test the money logic: invoice numbering per series, VAT, rounding, against real SQL on many random documents.
5. Use one session per topic with a short hand-over note; long sessions waste tokens. Keep local models to small mechanical jobs.
Rules: ask me before anything irreversible (sending, posting, paying, deleting); don’t invent data, results or tools I haven’t given you; tell me what you couldn’t verify.
Based on: Jorge Garzón — https://dev.to/satgarzon/two-years-in-a-family-car-wash-service-company-running-its-own-erp-and-ai-agents-built-with-claude-89a

Steps are from the source. Includes a “Based on” credit line.