PostgreSQL API SSH MCP Server

[LEGEND] COGNITION = The contract for how reasoning artifacts are stored and linked. [CONTENT] Contract: Cognition v1 ## Purpose Define [COGNITION]: how reasoning artifacts are recorded, linked, and retrieved. ## Scope - In scope: artifact types, linking rules, minimal required fields. - Out of scope: UI/visualization and storage backend. ## Interface TODO: define artifact envelope and required fields per type. ## Errors TODO: define invalid artifact/link errors. ## Examples ```json {"type":"evidence","title":"Gate green","links":["decision:use-content-only"]} ```