It might be helpful to have a blurb in the testing section (or elsewhere) mentioning that Dagster exposes PDB through the op context. I've been using Dagster for close to 2 years and just figured this out. I know it's referenced in the API reference, but that's the only section of docs that I haven't read from front to back and I wouldn't be surprised if other users skip that section as well

That sounds right to me, and it looks like you’re not the only one who has thought so-- recommend adding your upvote to the pile: https://github.com/dagster-io/dagster/issues/6627