Quesar. Private AI operations. Follow the boundaries, one idea at a time. ABI separates its pure AI core from storage I/O. MCP owns the store-facing completion persistence tail. Vector primitives and accelerator contracts. The durable store integrates snapshots, WAL recovery and HNSW search. Recovery can report corruption or I/O failure. Durability has limits. Audit blocks carry predecessor hashes. The block hash covers time, sequence, profile and metadata. Strict verification recomputes content hashes. Link-only verification does not. Abbey, Aviva and ABI are persona profiles with identity contracts. Keyword routing is a local path. Explicit leading names can select a profile. Abbey: conversational. Aviva: direct, technical. Abi: routing. The scoped audit matches thirteen case-insensitive phrase patterns. Six principles contribute, including safety and privacy. Harm outside those phrases can escape detection. A distributed cognitive fabric is a longer-term vision. Compatibility and delivery require separate qualification. Treat the roadmap as a direction, with questions still open. Begin with a defined project. Discuss the scope, inspect the sources, and agree on the evidence needed.