Claude usage increased by 1,487% from January to March. And yet 99% of people still have no idea what it does. Cheers to my main man Chris Donnelly for the inspo behind this. Here's how to use it like a founder who runs their whole business on it... (And stop using 1 feature out of a possible 13). 1️⃣ Claude Chat: Ask, write, and analyse anything. ↳ Give it full context on your business and goals. 2️⃣ Projects: Saves your files and context permanently.  ↳ Upload your tone and audience brief once. Every session starts fully briefed. 3️⃣ Extended Thinking: A deeper reasoning mode for complex problems. ↳ Use it for strategy or launch planning. 4️⃣ Skills: Reusable instruction packs that auto-load for specific tasks.  ↳ Build one for hook writing, DM outreach, or newsletters. 5️⃣ Artifacts: Builds interactive files, dashboards, and tools inside the chat. ↳ Working deliverables in minutes. 6️⃣ Cowork: A desktop tool that reads your files and creates real documents.  ↳ Pick a folder and give it clear instructions. It'll create a finished doc. 7️⃣ Claude in Excel: Reads your spreadsheets and finds the patterns.  ↳ Build model spreadsheets and tweak data and errors in seconds. 8️⃣ Claude in PowerPoint: Builds presentations inside PowerPoint.  ↳ Brief it on your webinar deck and get a fully structured presentation. 9️⃣ Connectors: Links Slack, Drive, Notion, Gmail, and 50+ tools.  ↳ Claude becomes the operating layer across your whole stack. 🔟 Claude in Chrome: A browsing agent inside your browser.  ↳ Research a prospect or summarise a competitor page with one instruction. 1️⃣1️⃣ Claude Code: One of the best coding tools available.  ↳ Non-technical founders can build automations without hiring a developer. 1️⃣2️⃣ API: Build products and run Claude inside your own tools.  ↳ This is the moment your entire business starts to run on Claude. 1️⃣3️⃣ File Analysis: Reads and draws conclusions from real files.  ↳ What takes a junior analyst a day takes Claude minutes. And here are 4 power tips for you to take full advantage of Claude: - Stack Projects with Skills. Claude knows who you are instantly. - Correct a mistake in the chat, and it carries that correction forward. - Upload a file before you ask any questions. Never ask cold. - Use Extended Thinking for decision-making. Most people are using 2 or 3 of these at most. The ones running the whole stack built a system around it. That's what Claude OS is. The full Claude Operating System for founders who want: ✅ Original frameworks like the S-O-L-V-E method. ✅ A system built specifically around Claude and how it thinks. ✅ Drop-in prompts across every stage of your content and lead gen strategy. Comment "CLAUDEOS" below, and I will send it to you for free ! How do you use Claude to run your business? Drop it below :D 💾 Save this and open it every time you use Claude. ♻️ Repost to help someone still using Claude like a search engine. And follow Josh S. for more on AI and founder systems.