PRD & Product Specs
8 PRD examples from real products, with templates
Eight PRD examples from real product types, a new feature, a mobile app, an API, an AI feature, and more, each with what...
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Heemang Parmar
CS engineer and IIM Lucknow MBA. Built products across enterprise and AI for 10+ years. Founded ProductOS to give every PM and founder the leverage of a full product team. Writes about AI product development, PRDs, and building with agents.
Articles by Heemang
PRD & Product Specs
The PRD template we use at ProductOS (free)
The exact PRD template we use at ProductOS: seven sections, what goes in each, and how to use it to force real decisions...
Agentic Product Development
Agentic workflows: automating the product pipeline
What agentic workflows are, how they automate the product pipeline stage by stage, and how to start building them withou...
Vibe Coding
Kimi K3 vs Claude Fable 5 vs GPT-5.6 Sol: the coding benchmark for builders
Kimi K3, Claude Fable 5, and GPT-5.6 Sol compared on real coding benchmarks, price, and context. Which AI model should y...
Vibe Coding
What is vibe coding? The complete guide for 2026
Vibe coding gets you a working demo in an afternoon and, too often, a rewrite three weeks later. This guide is honest ab...
PRD & Product Specs
What is a product requirements document (PRD)? The complete guide
The complete guide to product requirements documents: every section explained, real good vs bad requirement lines, the m...
Product Metrics & Prioritization
What is a north star metric? The complete guide with 50 examples
The complete guide to north star metrics: what qualifies, what disqualifies, 50 examples across ten business models, and...
AI Market Research
What is AI market research? The complete guide (2026)
AI compresses weeks of desk research into hours, but only when every claim carries a citation and secondary synthesis is...
AI-Native Way of Working
What is AI-native product development? The complete guide (2026)
AI-native product development rebuilds the product process around AI instead of bolting AI onto the old one. Here is wha...
AI for Product Managers
What are the best AI tools for product managers in 2026?
A working map of AI for product managers: which tools fit which part of the job, the workflows that hold up in practice,...
Agentic Product Development
What is agentic product development? How AI agents build products
Agentic product development hands each stage of product work to a specialized AI agent working inside one shared context...