How to force use of pnpm instead of npm?

[tauren]

I'm a brand new user to both Claude Code and Agent-OS, but I'm a very experienced developer and have used other AI coding tools extensively. Agent-OS looks very interesting, as I'm looking for something lighter-weight and less agile-structured than the BMAD method. I decided to try it out with a simple node.js project.

How can instruct agent-os to consistently use the right package manager? As a task is running, it keeps trying to run npm test .... This actually works because I have npm available as well. But my project uses pnpm exclusively, and I'd prefer it to be running pnpm test ....

Because my project isn't rails based, I made many changes to the tech-stack.md, including:

• Package Manager: pnpm

Is there something else I should be configuring?