Marissa Bellas

Field guide

Organized by what you came for, not by when I wrote it. Four sections: a situation, a practice, a failure, or something arriving next.

Field notes

A situation from a real deployment — what happened, what it cost, and what I would do differently. Details are composited across engagements.

Patterns

The practice that falls out of seeing the same thing go wrong repeatedly. Written to be handed to a team, not admired.

Nothing here yet.

Postmortems

Things that went wrong. Mine first, and customers second — with the part I got wrong left in.

Nothing here yet.

Signals

What is arriving next, and which assumption it quietly breaks. Less prediction, more consequence.

  • Agent 365 and the posture gap

    Agent inventory tells you which agents exist. It doesn't tell you which ones can quietly reach your crown jewels.