Claude AI4 min read

A Weekly Claude Code Routine for a One-Person Company

How a solo founder or one-person company can run marketing, sales and invoicing in a few focused blocks a week, with Claude Code recipes and clear safety rules.

Haojun See

Founder & CEO, On The Ground

Updated 3 November 2026

Can one person run marketing, sales and invoicing with Claude Code?

Yes, if the work is written down as recipes and run on a fixed weekly rhythm. A one-person company doesn't need more tools. It needs the same few jobs done every week without relying on memory, and Claude Code is a good place to run them because everything lives in folders on your own machine. This guide shows a simple weekly routine across the three tracks (Get Seen, Get Sales and Get Paid), the folder layout that makes it work, and the safety rules that matter most when there's nobody else to catch a mistake.

Set up one folder per track

Make one top-level business folder with a sub-folder for each track, and a `CLAUDE.md` at the top with the rules that apply everywhere. Claude Code reads that file at the start of every session, so your rules travel with the work. Anthropic's memory documentation explains how these files load. • get-seen/: voice file, brand basics, content plans and drafts. • get-sales/: leads, price list, terms, quote template, call notes. • get-paid/: invoice template, numbering.csv, open invoices, receipts. Good top-level rules are short: Singapore spelling, never invent a price, never send without approval, and keep NRIC numbers out of every file.

A weekly rhythm that fits around client work

Give each track one short block a week, plus a daily ten-minute money check. The point is a rhythm you can keep in a busy week, not a perfect system. • Monday, Get Sales: run the pipeline tidy-up, send the nudges you approve, and draft follow-ups from last week's calls. • Wednesday, Get Seen: draft this week's posts from your notes, or cut last week's talk into clips. • Friday, Get Paid: invoice everything accepted this week and update the receivables list. • Every morning: check payments received, then approve the day's payment reminders. • Monthly: the visibility check, the receivables report and the receipts-to-ledger run.

Connect the tools you already use, carefully

Claude Code can connect to email, calendars and drives through MCP connectors, which lets one session pull an event's sign-ups, your calendar and last time's report together. That's how we draft post-event reports: the session reads the guest lists, the programme and the previous report, and leaves a marked gap where it has no data rather than making something up. Connect only what a recipe needs, and keep anything that sends or deletes behind an approval. Anthropic's MCP guide explains how connectors work.

The one-word rule: draft, not reply

When you ask AI to handle an email, say "draft a reply", never "reply". With email connected, "reply" can mean exactly that: the message goes. Haojun learnt this the hard way when a meeting summary went straight to a client instead of into drafts, and the follow-up had to be an apology. Build the rule in three places: in your CLAUDE.md, in the way you phrase requests, and in Claude Code's permission settings, so sending needs your approval.

What a one-person company should never hand over

Keep decisions, relationships and anything you'd have to apologise for. • Pricing, discounts and bid decisions. • Anything sent in your name, until you've read it. • Client confidential files in tools you haven't checked. Follow the PDPA on consent and purpose for personal data. • Claims about results or credentials. If you can't back it up, it doesn't go in.

Next steps

Set up the three folders this week and run Friday's invoicing block first. It's the one that pays for the rest. Add the Monday sales block next week and the Wednesday content block the week after. Come and talk it through in person. Our year-end OTG Christmas Gathering is on Monday 28 December in Singapore: an evening of networking, dinner and a gift exchange with the people we've worked, learnt and built with this year. Bring the one job you'd most like to hand over, and we'll show you how we'd set it up. Register on Luma.

This guide is part of our series on running a small business with Claude Code as the harness. • Get Seen, Get Sales, Get Paid with Claude Code: the main guide: the three tracks and how a recipe works. • Get seen by AI, not just Google: a month of content in your voice, and a check on how ChatGPT, Claude and Perplexity describe you. • From call notes to quote: pipeline tidy-ups, quotes from your own price list, and follow-ups that go out on time. • Quote to invoice to paid: invoices copied from the accepted quote, polite payment chasing and a monthly receivables view.

Frequently asked questions

What is a one-person company?

A one-person company is a business run by its founder alone, without employees, often using freelancers and software for the rest. In Singapore it may be a sole proprietorship or a private limited company with one director and shareholder. The founder handles marketing, sales, delivery and admin, which is why repeatable routines matter.

How can a solo founder use AI to save time?

Write the jobs you repeat every week as short recipes with set inputs, steps and checks, then run them with an AI tool such as Claude Code on a fixed schedule. Start with invoicing and payment reminders, then sales follow-ups, then content. Keep every send and every price decision with you.

Can Claude Code send emails for me?

It can, if you connect your email through an MCP connector and allow it. For a small business, it's safer to let it draft only. Ask for a draft reply rather than a reply, add a no-sending rule to CLAUDE.md, and keep permission prompts on so anything that sends needs your approval.

How much time should a one-person company spend on admin each week?

There's no fixed figure, but the aim is short, predictable blocks rather than evenings lost to catch-up. One block a week for each of sales, content and invoicing, plus a ten-minute daily payment check, is a workable rhythm. Adjust after a month based on what actually slips.

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