Module schema 

Enums

CodeSmell

Code quality smells detectable without full type resolution.

DesignPattern

Common design patterns detectable syntactically.

EdgeKind

Directed relationship between two nodes.

NodeKind

Every named, referenceable syntactic entity becomes a node of one of these kinds.

SolidHint

Which SOLID principle a node may be violating (populated in pass 2).

Visibility

Symbol visibility in the source language.

Constants

SCHEMA_VERSION

Bumped whenever the on-disk graph schema changes. Stores compare this against the persisted version and re-index on mismatch.