JigsawML maps the code changes engineering teams need to review
A code change can affect more than the lines an engineer has edited. JigsawML builds diagrams intended to show how a proposed change relates to the rest of a software system, giving engineering teams another view to consider before it is merged.
Putting the map beside the change
Its Pull Request Helper is a GitHub app aimed at a familiar review point: a pull request, where a proposed change is presented for inspection. JigsawML says the app maps affected dependencies and boundaries and updates the view as commits are added.
The commercial idea is to put architecture information where engineers already decide whether to accept changes. If the view proves useful in that workflow, teams have a reason to use the product repeatedly rather than consult a diagram only during a large redesign.
That question is relevant beyond one company. In Stack Overflow's 2026 developer survey, 63.9% of the 13,162 people answering a multiple-choice question said they usually compared an AI-generated development answer with codebase context before using it. The result describes survey respondents, not demand for JigsawML.
From repositories to diagrams
JigsawML also describes generating interactive diagrams from code to show how components connect. It targets engineering leaders, software architects and platform teams, among others, and presents the diagrams as a way to explore an unfamiliar codebase.