Spec

Spec is an AI Product Manager Agent designed for founders and indie hackers. It takes a simple idea, often just a single sentence, and runs it through a comprehensive 10-step discovery pipeline. This process includes strategy planning, market research, competitor analysis, and user persona simulation, ultimately producing a detailed Product Requirements Document (PRD). The final output is a structured Markdown file ready to be used with AI coding tools, providing a solid blueprint before a single line of code is written.

What makes Spec stand out is its adaptive, agentic nature. Instead of just assisting, it acts autonomously. Before starting, it classifies your product type—such as SaaS, hardware, or fintech—and tailors its entire research strategy accordingly. It uses tools like Firecrawl to scrape competitor websites and Tavily to gather market data. A key feature is the human-in-the-loop approval system, which pauses at critical junctures like the Jobs-to-Be-Done framing and the final PRD, giving you control to review and edit the direction before the agent proceeds.

This tool is a perfect fit for solo entrepreneurs, indie hackers, and small startup teams who want to validate their product ideas quickly and thoroughly. It saves the weeks of manual research typically required for product discovery. Use cases include rapidly testing a new SaaS concept, defining the specifications for a hardware project, or ensuring a new mobile app idea is well-researched and clearly defined before development begins.