Agents retain grounded context across months of sessions without hallucination or historical corruption. Fact assertions are tracked with two distinct dimensions: assertion time and validity interval (valid_from / valid_until).
Local Ego-Graph PPR Associative multi-hop recall over entity beliefs via Personal PageRank.
RRF Hybrid Search Dense embeddings (pgvector / sqlite-vec) + FTS5 lexical ranking.
Prompt-Fenced Injection Recalled data is safely wrapped in <kazma:data untrusted> to prevent prompt injection.
Automated Backup Ops 6h WAL-safe snapshots of every SQLite DB plus validated Postgres dumps, kept offsite via encrypted restic.