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How to Build a Daily AI Digest in Claude Cowork

Turn 50 newsletters into one page you actually read

by Lucia | @reallyusefulai

What's Inside
Section 01

The Problem (and What We're Building)

I was subscribed to 30+ newsletters. I read maybe 2 of them.

Every morning my inbox was full of Substack posts, industry updates, and interesting articles that I told myself I'd "read later." I never did. But I also didn't want to unsubscribe, because some of them were genuinely great. I just didn't have time to read them all.

So I got Claude to do it for me.

The solution: Claude Cowork reads your email every morning, finds all the newsletters, summarises the important stuff, spots trends, and gives you content ideas. All in one page.

What you end up with

A daily one-pager with key themes, trend signals, and 5 ready-to-use content ideas. Delivered to your inbox before you wake up. You read it in 5 minutes over coffee and you're across everything.

This is not some complicated automation. It's a scheduled task in Cowork. Takes about 15 minutes to set up.

Section 02

What You Need

Don't want a separate email?

That's fine. You can just use your main Gmail. Cowork will filter for newsletters and ignore transactional emails like receipts and shipping notifications. A separate address just makes things tidier.

Section 03

Connect Your Email

This takes about two minutes. You're giving Cowork permission to read your emails so it can find newsletters.

Test it first

Before moving on, make sure the connection works. Type this into Cowork:

Show me my most recent 5 emails

If you see a list of your recent emails, you're good to go. If not, go back to Connectors and try reconnecting Gmail.

What about privacy?

Cowork reads your emails to find newsletters, but it doesn't store them anywhere or share them with anyone. The digest is generated locally in your Cowork session. Your emails stay in your Gmail account. Anthropic's privacy policy covers how data is handled in Cowork.

Section 04

Create Your First Digest (Manual Run)

Before scheduling anything, let's run the digest once manually so you can see exactly what it produces and tweak it.

Copy and paste this prompt into Cowork:

Read all emails from the last 24 hours in my inbox. Find every newsletter, Substack post, industry update, and article. Ignore transactional emails (receipts, shipping notifications, etc.). Create a one-page digest with: 1. KEY THEMES - The 3 biggest topics across everything you read. One punchy bullet each. 2. POST IDEAS - 5 content ideas I could turn into Instagram posts, blog articles, or short videos. For each, give me the format (carousel, reel, blog), a hook, and the angle. 3. TREND SIGNALS - Any patterns you're noticing across multiple sources. 4. SOURCES - A list of everything you read with links so I can dig deeper if I want. Keep it concise. I want to read this in 5 minutes over coffee.

What happens: Cowork reads your recent emails, sorts through them, identifies the newsletters, pulls out the key insights, and generates your digest. This usually takes 30 to 60 seconds.

Review the output. If it's too broad, too detailed, or missing something, just tell it. Say things like "Make the post ideas more specific" or "Focus more on AI and marketing topics." You'll refine this in the next section.

Not many newsletters in the last 24 hours?

Change "last 24 hours" to "last 3 days" or "last week" for your first test run. Once you're happy with the format, you'll switch back to daily.

Section 05

Customise What You Care About

The first digest will be broad. That's normal. Now you narrow it down to the topics that actually matter to you.

Tell Cowork what to focus on:

Update the digest to focus specifically on: AI tools for small businesses, content creation, social media strategy, and personal branding. Ignore anything about enterprise software, crypto, or politics.

Replace those topics with whatever you actually care about. Be specific. The more detail you give, the better the digest gets.

You can also tell it your content style:

When generating post ideas, think about Instagram carousels and 30-second Reels. My audience is female business owners who are curious about AI but not technical.

Again, swap in your own audience and preferred formats. The point is that Cowork learns your preferences and applies them every time.

Save your preferences as a skill (optional but powerful)

If you want Cowork to remember all of this without you having to repeat it, ask it to create a skill:

Create a skill called "daily-digest" that saves all my preferences for this digest. Include my topic filters, content style, and output format so I don't have to explain it every time.

Now whenever you run the digest, you can just reference the skill and Cowork applies all your preferences automatically. This step is optional, but it makes the scheduled version much cleaner.

Iterate as you go

Your first digest won't be perfect, and that's fine. Run it a few times, give feedback each time, and it gets better fast. After 3 or 4 runs, it'll know exactly what you want.

Section 06

Schedule It to Run Automatically

This is where it gets good. Instead of running the digest manually every morning, you set it to run on a schedule. Wake up, and it's already done.

That's it. Every morning, Cowork reads your emails, generates the digest, and has it waiting for you.

Important: your computer needs to be on

Cowork runs locally on your machine. For the scheduled task to fire, your computer needs to be awake (or set to wake up on schedule). If your Mac is closed and asleep at 6am, the task won't run until you open it. You can set your Mac to wake automatically via System Settings > Energy.

Test the schedule

Set the time to 5 minutes from now for your first test. Make sure it fires, check the output, then change it to your preferred morning time.

Section 07

Turn Insights Into Content

The digest gives you 5 post ideas every day. That's 35 ideas per week. You'll never stare at a blank page again.

Every morning, scan the POST IDEAS section of your digest. Pick the one that resonates most. Then tell Cowork to run with it.

Turn a digest idea into a LinkedIn post:

Take idea #3 from today's digest and draft a LinkedIn post about it in my brand voice.

Turn a digest idea into an Instagram carousel:

Take idea #2 from today's digest and create an Instagram carousel outline. Give me a hook slide, 5 content slides, and a CTA slide.

Batch your content for the week:

Take the top 3 ideas from this week's digests and create Instagram carousel outlines for each. Make them different enough that they don't feel repetitive.
The content engine

This is the part that changed everything for me. I used to spend an hour every week trying to come up with content ideas. Now the digest hands me 35 ideas a week, pre-filtered to my topics, with hooks already written. I just pick the best ones and create. The hard part (coming up with ideas) is completely automated.

Save your best ideas

Not every idea needs to be used immediately. Ask Cowork to keep a running list: "Add this idea to my content ideas backlog." When you're planning content for the month, you'll have dozens of strong ideas ready to go.

Section 08

Level It Up (Optional Extras)

Once your daily digest is running smoothly, here are some ways to make it even more useful.

Add web research. Your newsletters don't cover everything. Ask Cowork to fill the gaps:

Also search the web for the latest news on AI tools for small business and content creation. Include anything relevant that wasn't in my emails.

Add calendar context. Make the digest aware of your day:

Cross-reference with my calendar. If I have a meeting with someone today, check if any of the digest topics are relevant to that meeting and flag them.

Save digests as files. Build an archive you can search later:

Save each digest as a markdown file in my Documents folder with today's date in the filename, so I have a searchable archive.

Feed into a weekly blog post. Turn your digests into long-form content:

Once a week, take the best insights from the last 7 digests and draft a blog post summarising the week in AI. Write it in a conversational tone for a non-technical audience.
Don't add everything at once

Start with the basic digest. Run it for a week. Then add one extra at a time. Each addition makes the digest slightly longer to generate, so only add what you'll actually use.

Section 09

What You've Built

Let's take a step back and look at what you now have running.

All of this runs before your first coffee.

The honest truth

I've been running mine for months. I haven't opened a Substack email since. Everything I need to know shows up in one page, every morning, written in a way that's actually useful. It took 15 minutes to set up. It saves me at least an hour a day.

For the Claude Code version (more powerful, fully automated, runs without your computer being on), check out the companion guide on reallyusefulai.co/guides.

You're all set.

Your daily digest is running and your content ideas are flowing.

Have any questions? Just DM me @reallyusefulai on Instagram or TikTok

More free guides at reallyusefulai.co/guides

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