SCHEMA // AGENTIC BRAIN

Memory is only useful when it is typed, dated and traceable.

Nothing is stored as an opaque embedding blob. Every unit of knowledge is a row you can inspect, query and revert. The graph is the product.

Node types

TYPE	DESCRIPTION	COUNT · 50-PERSON DEMO
ENTITY	Service, system, team, person or vendor	412
DECISION	A choice made, with the tradeoff recorded	168
FACT	An atomic assertion with confidence + age	1,842
ARTIFACT	The raw source record it was derived from	9,317

Edge types

derived_fromfact → artifact
provenance, always required
supersedesfact → fact
newer assertion replaces older
contradictsfact ↔ fact
flagged for human resolution
owned_byentity → person
recall routing when a fact expires

Freshness decay

Every fact carries a half-life derived from how often its source class changes. A deploy config decays in weeks; a company value decays in years.

Contradiction detection

When two facts about one entity disagree, both are surfaced side by side with authorship and date. The graph never silently picks a winner.

Time travel

The graph is append-only. Query it as of any timestamp to see exactly what the organisation believed on that date.

SAMPLE // FACT RECORD

{
  "id": "fact_9f31c",
  "entity": "svc.payments-gateway",
  "assertion": "Rate limit is 1000 req/min per tenant",
  "confidence": 0.94,
  "state": "live",
  "asserted_at": "2026-08-03T09:12:00Z",
  "half_life_days": 90,
  "derived_from": ["repo/gateway.yaml#L42", "slack/C0X92/p17512"],
  "contradicts": []
}

Demo tenant. Illustrative record, no live connection.