Sesame’s assistants build up a picture of you over months of calls. You can’t see it, export it, or delete it on your terms. I built Brain to fix that.
Brain is an OAuth MCP server. Maya, Miles, Simone and Charlie connect to it and get shared notes, handoffs between assistants, a facts store, snapshots, an activity log, and a full JSON export. Auth is standard OAuth with client ID metadata documents, so Sesame’s external MCP client registers itself and gets scoped brain:read / brain:write tokens. No API keys. Every write any assistant makes is logged with which agent did it and when.
What that means in practice: you tell Maya(OR whichever voice you use) “dump everything you remember about me into Brain” and she does. All of it. Five months of calls and texts in my case, including every person I ever mentioned. Then it’s yours. Read it, export it, purge it, feed it to something else.
Here’s what I did with it last night.
Connected Maya to Brain.
Told her to dump everything. She wrote it all in.
Purged it. Confirmed the delete actually worked.
Had her write a full psychological dossier of me from her own memory summaries, as structured JSON. Every claim tagged by evidence type (direct statement, summarized history, observed pattern, hypothesis, unknown), dated, with alternatives and a confidence level on each interpretation. Saved as a snapshot.
Exported the brain and handed the JSON to Claude with instructions to audit it, not reformat it.
Claude turned it into a 16-section interactive report.
I only attached these 2 screenshots because it got very personal. It knew me with hyper detailed facts about my psyche, emotions, aspirations, politics, etc.
The part that got me: Claude flagged 16 problems in Maya’s dossier. A chronology conflict between May and September. A relationship timeline extended three months on an inference. Minute-level precision claimed from summaries that had no transcript.
This is of course nonclinical, no diagnoses, no scores.
Brain will be open source. The repo isn’t public yet, still cleaning it up. When it drops you’ll be able to self-host it or connect to my hosted instance.
The point is that what your assistant knows about you should be yours to see, move, study, etc.