Built for people who don't write code, and who don't need to. A step-by-step guide to working with agentic AI on your own machine. Set it up once, then let Claude read your files, run your tools, and build real things alongside you. Start simple — open any topic's ◇ Go deeper when you're ready for more.
A browser chat window can only talk. An agent running on your computer can act — open files, run programs, write code, and create real things using your own hardware and software. That single shift is what this whole guide is about.
By the end you'll have Claude installed, a tidy project folder, and a repeatable daily rhythm. Read the plain path first; reach for the advanced layers only when you want them.
A paid plan is the entry ticket — the free tier can't run the agent. Pro is plenty to start, and for most teams it's an easy business expense.
The native installer puts a single claude command on your computer and keeps it updated automatically — no Node.js, no manual PATH setup.
Open your terminal, paste one line, press Enter.
PS> irm https://claude.ai/install.ps1 | iex$ curl -fsSL https://claude.ai/install.sh | bashMost people only need the one command. These are the fallbacks and checks the pros reach for when something's off.
npm install -g @anthropic-ai/claude-code works on every OS (you update it manually).claude doctor — it reports your version, install method, and any fixes.sudo with the npm install — it's the number-one cause of permission errors.Thirty seconds now saves an hour of "why won't this run" later. These two commands prove the install and self-diagnose problems.
> claude --version 2.x.x (Claude Code) > claude doctor # checks your setup and suggests fixes
claude "isn't found", reopen the terminal first. If it still fails, claude doctor will point to the fix — usually a PATH refresh.One tidy home per project keeps Claude focused and your work backed up. Sync it to the cloud and backups are automatic.
Make a folder like C:\Projects\my-project. Tip: keep your Projects folder inside OneDrive so everything backs up automatically.
Make a folder like ~/Projects/my-project. Tip: keep Projects in iCloud Drive or OneDrive for automatic backup.
"cd" simply means "go into this folder." It's how you tell Claude exactly where to work.
# or: in the folder, Shift+Right-click ▸ "Open in Terminal" PS> cd C:\Projects\my-project PS> cd .. # go up one level
# or: Finder ▸ right-click folder ▸ New Terminal at Folder $ cd ~/Projects/my-project $ cd .. # go up one level
This is the moment chat becomes an agent that can actually touch your files.
claude and press Enter.Watching files appear in real time turns "magic" into something you can see, check, and trust.
Open the folder in File Explorer next to your terminal. Drag in any artifacts — documents, recordings, screenshots — you want Claude to work with.
Open the folder in Finder next to your terminal. Drop in any files you want Claude to work with.
The more precisely you point Claude at something, the better the result — and you can point at pictures, not just words.
@filename to point at a specific file instead of letting Claude hunt for it.Python is a programming language Claude can use to crunch data, process files, and automate tasks. Adding it noticeably improves your results.
Easiest: just ask — "Check if Python is installed, and install it if it isn't." Or do it yourself:
PS> winget install Python.Python.3.12 PS> python --version # reopen terminal first
$ brew install python $ python3 --version
An agent that can test its own output catches its own mistakes — so you supervise less and trust the result more.
Markdown (.md) files are plain text that both you and the agent read easily. They become your project's shared plan and memory.
A few standing instructions make Claude's output faster to use, easier to find, and simpler to keep.
The biggest quality gains happen before any code — in thinking the problem through together.
In Plan Mode Claude reads and reasons but can't change files — so you settle the approach before any code is written. It's the workflow Claude Code's own creator uses.
Claude's memory within a session is finite. Keeping it clean is the single habit that most separates smooth sessions from frustrating ones.
/clear when you switch to an unrelated task — don't drag old context into new work.A few deliberate moves keep Claude focused on long jobs and rescue sessions that start to wander.
/compact Focus on … — summarizes the session but keeps the decisions you name./rewind (or Esc Esc) to undo a wrong turn — re-explaining keeps the mistake in context and pollutes the next try.Git gives you a true undo across your whole project and a full history of changes — something file-sync can't do. It also gives Claude a record of what changed and why.
Telling Claude you're done lets it save context for next time — so the next session starts informed, not from scratch.
Instead of re-explaining your project every session, write it down once in a CLAUDE.md file. Claude reads it at the start of every session.
/init and Claude drafts a starter CLAUDE.md from your folder./command.Claude stays inside your project folder unless you send it elsewhere — so the boundary is simple and in your control.
You stay in control by seeing what Claude wants to do before it does it.
/diff to see exactly what changed before you keep it; pair it with /rewind to undo./permissions.Connectors (MCP) let Claude reach into your email, calendar, drive, or a database — so it can use real data, with your permission.
A little setup turns Claude from a folder assistant into something wired into your actual day-to-day tools.
Almost every early stumble has a one-line fix. Keep this page nearby for your first week.
claude "isn't recognized"claude doctor./clear and restate the task in a fresh, clear prompt./rewind (or Esc Esc). Don't argue it back on track.CLAUDE.md file.cd into the right one./permissions.A shared vocabulary so nothing gets lost in the jargon.
claude.Claude Code is one excellent option — OpenAI's Codex CLI and Google's Gemini CLI are strong too, and tools like Claude's Cowork sit between chat and full agent. The real shift isn't the brand. It's leaving browser chat behind for an agent that can use your computer to truly build.
This single page is most of what you need day to day. Print it and keep it nearby.
cd into your project folderclaude.md first/diffclaude/clear/compact/rewind/diff/usageclaude doctorThe fuller set — type / in Claude any time to see the live list with descriptions.
/clear — wipe context, start fresh/compact — summarize & free up memory/context — see how full memory is/rewind — roll back code or chat/diff — review changes/init — draft a CLAUDE.md/memory — edit standing instructions/permissions — control what's allowed/usage — plan limits & usage/cost — token cost (API billing)/doctor — health-check the install/help — list everything@file — point at a specific file!command — run a shell commandShift+Tab — switch modes (incl. Plan)Ctrl+C — stop and redirectEsc Esc — open the rewind menuTick these off as you go. Once they're all checked, you're up and running.
Set it up once this week. Start with something small and real. Ask Claude to challenge you — and let it do the building. When you want more on any topic, that's what ◇ Go deeper is for.