Day 13: Set up the folder that holds your AI brain.
Three empty folders. Eight minutes. The infrastructure I keep banging on about. Today it goes in.
Welcome to Day 13 of the challenge.
Today’s job is small. Three folders. Eight minutes.
It will look like nothing. By next week it’ll be the foundation that makes everything you build with Claude faster, sharper and reusable.
This is the day the word “infrastructure” goes in. Don’t be put off by it. Infrastructure is not technical. Infrastructure is naming files in folders so Claude knows where to put things and where to find them. That’s the whole magic.
A word before we start
So far your Switched-On folder has whatever you’ve saved into it. The Day 5 subscriptions table. The Day 7 dashboard. The Day 8 Saturday sort. The Day 9 meeting briefs. The Day 10 daily plans. The Day 11 doc summary. The Day 12 decision file.
It’s already a lot. By Day 30 there’ll be a lot more.
Without structure, “the Switched-On folder” becomes a mess you can’t find anything in. With structure, you have a working brain.
Why this folder works in any AI tool
The reason we’re using plain text files (.md) and standard filenames is not because Claude is special. It’s because the whole setup is portable.
CLAUDE.md is named for Claude, but a folder structured like this works with any AI tool that reads files. Drop the same Switched-On folder into ChatGPT, Gemini, Cursor, Perplexity Spaces, or whatever’s next, and a sensible AI will read the context. Your brain about you isn’t locked to one product. It’s yours.
Same for the naming convention. Lowercase, hyphens, dates first. Works in any operating system, any cloud service (iCloud / Dropbox / OneDrive / Google Drive), any text editor. No proprietary format. No lock-in.
You’re building a personal AI infrastructure that survives any tool change. That’s the real durability play.
The structure
Three sub-folders is the entire system:
outputs/ for everything Claude produces for you (the daily plans, the doc summaries, the decisions, the meeting briefs, the Saturday sorts)
skills/ for the agents you’ll build in Week 4. A ‘skill’ is a saved set of instructions Claude can run on demand, like a recipe. The skills/ folder holds them. You’ll build your first one on Day 26.
reference/ for documents you drop in for Claude to read (your contracts, your audience research, your brand guidelines, anything you want Claude to be able to refer back to)
Three folders. That’s it. Today we make them and tell Claude where things go from now on.
Step by step
Step 1. Open Cowork in your desktop app, pointed at your Switched-On folder.
Step 2. Move the files you’ve made so far into outputs/. Don’t do this yourself. Ask Claude:
Look at the files currently in this folder. Move everything I’ve saved from Days 5 through 12 (the subscriptions table, the dashboard HTML, the Saturday sort, the meeting briefs, the daily plans, the doc summary, the decision file) into a new sub-folder called outputs/. Don’t move CLAUDE.md or MEMORY.md if they exist (we make those tomorrow).
Watch what Claude does. If something gets moved you’d rather leave at the top level, just tell it to move it back.
Step 3. Create the other two sub-folders. Ask Claude:
Now create two more sub-folders alongside outputs/: skills/ and reference/. Leave them empty for now. We use skills/ in Week 4 and reference/ later this week.
Step 4. Tell Claude the rule for the future. Paste this:
From now on, when you produce anything for me, save it to outputs/ using the naming convention YYYY-MM-DD_short-description.md. Use lowercase, hyphens not spaces, today’s date. So a daily plan today would be 2026-XX-XX_daily-plan.md. Confirm you’ve understood.
Step 5. Drop something into reference/.
Anything you’d want Claude to be able to refer back to in future chats. Examples:
Your brand guidelines doc (if you have one)
A past LinkedIn post you’re proud of
A long-form bio
A pricing sheet
An audience research document
A document you keep being asked to reference
Pick one. Drag it into reference/. (You can add more over time.)
Step 6. Test the structure. Start a new chat and ask:
What’s in my Switched-On folder right now? List the structure.
Claude reads the folder, tells you the structure. If everything’s where it should be, you’re done.
A safety note
This is admin, not connection. No new permissions today. Claude is only doing things inside the folder you’ve already given it access to.
Two small good habits to install today:
Don’t put anything in this folder you wouldn’t be comfortable having Claude read. This is the working space, not the secure archive. If a document is genuinely sensitive, keep it elsewhere.
Back the folder up. iCloud, Dropbox, OneDrive, whatever you use. Switched-On is becoming the brain. Treat it like one.
What you’ll notice
The folder feels cleaner than it did yesterday. That’s it. That’s the entire visible payoff today.
The actual payoff isn’t visible until next week, when Claude starts opening this folder and immediately knowing where things go and where to look. From then on, every prompt is faster. Every output is findable. Every reference is reusable.
You don’t notice infrastructure until it’s not there.
Why this works
Naming is structure. Structure is memory. Memory is the difference between Claude as a chat tool and Claude as a colleague.
Most AI tools fail you because everything lives in chat history that nobody can find again. Cowork plus a folder structure flips that. Outputs are files. Files have names. Names are findable. Tomorrow’s Claude opens this folder and inherits everything today’s Claude built.
This is the move 95% of women using AI never make. The 5% who do make it are the ones you keep meeting at events and wondering “how do they get so much out of this.” It’s this.
Key takeaway
Three sub-folders. Outputs, skills, reference. One rule: save everything to outputs/ with a dated filename. Eight minutes.
Looks like nothing. Is everything.
Where this is heading
Tomorrow is the day this structure earns its name. We write the two text files that turn the folder from “place where files live” into “place that briefs Claude on you every time it opens.”
That’s the spine.
Tomorrow on Switched On
Day 14: Write the two files that make AI smarter forever.
Twenty minutes. Two text files. One paragraph in settings. From tomorrow on, Claude opens this folder and instantly knows who you are.
Nishma x
P.S. How did today land? Three buttons, thirty seconds → Tap one
I read every response. The data shapes the rest of the challenge.
Catching up? Days 0 to 12 are on the Switched On Substack archive HERE.
Got a friend or a colleague who this might be useful for? Send her to nishma.co/30daychallenge
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