TL;DR

A software factory tool is any part of the stack that turns intent into reviewed, shipped code while AI agents do the typing. The stack has five layers (specs, context, agents, evals, and governance), and most teams only buy the agent layer. DORA's 2025 research found that AI adoption now tracks with higher delivery throughput but still tracks with lower stability, a gap the other four layers exist to close. This guide walks through leading tools in each layer, how they fit together, and a minimum stack to start with.

Getting Started: What Counts as a Software Factory Tool

The phrase "software factory" is older than AI coding. Jack Greenfield and Keith Short used it in their 2004 book Software Factories to describe assembling applications from reusable assets, models, and frameworks instead of hand-building each one.…