Hello Full Stack PMs!
Welcome to the fifth Weekly Stack, where we concentrate the AI news firehose into tactical insights for PM builders. We've got 148 new subscribers this week – welcome to the stack! 🥞
I spent all week preparing to be a guest on Aakash Gupta’s Product Growth Podcast, going extremely deep on use cases of Claude Code for product managers. Super excited to share everything I found with you next week. So we’ll keep today short and sweet.
For this week:
I’ve open-sourced Product Pulse – build your own newsletter summarizer in <1 hour.
Claude can now create and edit files in a chat – finally
Replit launches Agent 3 – can allegedly run on its own for up to 200 minutes
OpenAI Announces Grove Startup Program – a new program for technical talent at the very start of their company-building journey
Let's do this.
💛 Open-sourcing Product Pulse
Last week, I launched Product Pulse 💛 It has over 100 users signed up for daily emails, and healthy number of daily actives using the database.
As a quick reminder, here's what it does (demo video):
📰 Scans 20+ top-tier product & AI newsletters
⚡ Adds bullet-point summaries to a database every day
🔍 Lets you filter by date, tag, free/paid
📬 Can email digests directly to you
I got a lot of customization requests, so I figured this would be a great chance to open-source it so you can learn to make your own.
So here are step-by-step instructions with templates for you to build your own!
You’ll learn:
What n8n is and how to get started with a pre-built n8n flow
How to connect n8n to Coda for powerful, no-code database operations
How to get and use a Gemini API key and experiment with a prompt
All told, it will likely take you 30-60 mins to get working for the first time.
If you need any help with it, don’t hesitate to ask!
Claude becomes your document factory
Claude just shipped what might be the most underrated feature of the year – actual file creation. Not copy-paste-this-markdown-into-Google-Docs nonsense, but real Excel spreadsheets, PowerPoints, and PDFs you can download and use immediately.
Some PM use cases:
Upload your messy user research data, and Claude creates a cleaned dataset with pivot tables and charts.
Dump your meeting notes, get back a formatted PRD with acceptance criteria.
Need a business case? Claude builds the financial model with scenario analysis, then creates the exec presentation to pitch it.
The gap between "here's what you should do" and "here's the actual deliverable" is shrinking fast.
Replit’s new Agent 3 can (allegedly) coding for 4 hours straight
Replit launched Agent 3 this week, claiming it can run autonomously for over 3 hours. Agent 3 self-builds apps, periodically tests them in a real browser, fixes issues, and can generate other agents/automations.
The stats are crazy:
10x more autonomous than before
3x faster than Computer Use models
I’m sure there’s still a lot of upfront planning and some caveats for the kind of work Agent 3 can do, so I’ll be investigating thoroughly.
OpenAI's Grove: Where the builders are going
OpenAI launched Grove, a startup program for technical talent at the very beginning of their journey. It's not an accelerator – it's more like a signal flare for where AI-native products are heading.
This is your early warning system for the next wave of tools. The startups coming out of Grove won't be building "ChatGPT for X" – they'll be creating entirely new categories of products that assume AI as a primitive.
Monitor Grove participants for tools that could transform your workflow
Network with founders building in your space
If you're feeling entrepreneurial, consider applying yourself (seriously)
Applications are due by Sept 24th.
😄 Memes of the week
Apple’s September event is like the Super Bowl of tech. Mainly that means lots of opportunities for MEMES.
this is bad for product managers
— #Carl Vellotti 🥞 (#@carlvellotti)
5:36 PM • Sep 10, 2025
Apple after spending $100B+ on R&D over the past 5 years:
— #Trung Phan (#@TrungTPhan)
2:23 PM • Sep 9, 2025
Apple every year 🤣🤣
#AppleEvent— #I Hate Apple (#@iHateApplee)
2:00 PM • Sep 11, 2025
My iPhone Air after buying a new case from Amazon
#AppleEvent
— #. (#@toops99)
5:50 PM • Sep 9, 2025
📚 Other good reads & listens
Huge database of Nano Banana use cases and prompts: 68 prompts for all kinds of things you can do with Google’s Nano Banana image model. From the past two Weekly Stacks, you know I’m pretty obsessed with this tool. This is the best compilation of things you can do with it I’ve seen yet.
alterego launched a thought-to-text (!) product: In a wild demo, the founders showed how their headset can read brain signals and turn them into accurate text. It works by reading the signals that fire right before you move your mouth to speak. It seems like you sort of have to silently mouth the words and people are skeptical about its accuracy. Still, it’s awesome and not hard to imagine this tech getting much better in the next few years.
🥞 The Last Pancake
If you only have 30 minutes this week, try following my guide to build your own Product Pulse. Building is the best way to learn.
Keep building,
Carl