| What moves | A dump: chat transcripts, a flat list of “memories” | Data you provided, in a machine-readable format | The working context: memories, approved knowledge, procedures and house rules, scopes, documents and handoffs, with their history |
| Structure | Each provider's own shape | Not specified | One open schema with a manifest, hashes and counts, checked by a conformance suite |
| Granularity | All or nothing | All or nothing in practice | By scope: one project, one team, work apart from personal |
| Import | None: nothing on the other side reads it | Not required | Defined: restore into an empty brain, or import as proposals a person reviews, never a blind merge |
| Trust and history | Lost | Not covered | Who wrote what and what was approved travels with it, along with the audit log |
| Deletion | Separate, unverifiable | A right, without proof | Erasure receipts and tombstones, carried in every archive |
| Interoperability | None | Encouraged, rarely achieved | The point of the protocol: an open specification and a conformance suite, so any tool can implement it |