Harmony
Harshal PatilHarmony of Technology, Business, and Entrepreneurship. Featured on the front page of Hacker News. Trusted resource for 100s of PMs and entrepreneurs. I am building-in-public.
| Platform |  | Pricing | Only free issues | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 190 | Founded | 6 years ago | Last Issue | 9 days ago |
| Active | |||||
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harshalpatil.substack.comLatest Issues
Three requirements for in-product AI agents
From my recent trials building, launching, and tightening AI agents, the same 3 gaps show up again and again. The model is “fine,” but outputs fail rubrics, the UI violates expectations people picked up from ChatGPT and coding agents, or de...
What AI Observability Needs to Capture
You tell an AI coding agent to update a script. The agent reports success. You check your files and find that the agent changed the wrong file. What happened? If you only observe the prompt and output text, the run still looks successful. Y...
Sample AI-native Product Manager Stack, 2026
Mapping AI tools to the Product Lifecycle
I enjoy discussing with product peers how AI is changing product management. I also enjoy using AI in a structured way through reusable workflows, prompts, and templates. Here I share how AI helps...
Turn Newsletters Into a value-only Private Podcast Feed With n8n and AI
I made an automation in n8n to extract the value from newsletters and blogs and convert them to a private podcast feed to save time and enable me to learn more. Here are my build notes and demo.
You need about 3 minutes to read this.
Subs...
Reflection On 37 Books Read In 2025
In 2025, I read 37 books with the usual focus on health and wellness, but an added focus this year on parenting and AI engineering.
I reflect on my year through the books I read, similar to a yearly Spotify wrap-up. I use an Impact Rating...
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Audience Metrics
Subscribers, engagement, traffic and sponsorship for Harmony.
| Subscribers | Engagement | 62 | Monthly Web Visits | ||
|---|---|---|---|---|---|
| Accepts Sponsors | Estimated Cost per Ad | ||||
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The writers behind this newsletter.
Likes "writing things down". Entrepreneur and Product Consultant. I like to tame chaos through structure.
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