Chose KGLite as the knowledge graph backend

Angelo › agent-memory › Phase 1: Design + Build

Type: Decision · Status: active · Created: 2026-06-05

Tags: decision,kglite,backend

Selected KGLite (kglite[embed]): lightweight Python-native with Rust core, single-file persistence (.kgl), built-in Cypher, code_tree module, semantic search. No external DB needed.

Rejected: Neo4j (heavy), custom JSON (no query language), Mem0 (opinionated).

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Source: memory entry deci-eb97ca53.