KG Extract

Extract entities (classes, functions, modules, types, concepts) and their relations (imports, extends, implements, depends-on, calls) from source files, then store them as a knowledge graph in AgentDB.

When to use

When you need to build or update a knowledge graph from source code or documentation. Useful for understanding codebase structure, dependency analysis, and impact assessment.

Steps

1. Scan files -- use Glob and Read to enumerate and read source files at the given path
2. Identify entities -- extract classes, functions, modules, types, and config references from each file
3. Map relations -- for each entity, determine its relations to other entities:
   • imports: follow import/require statements
   • extends: class inheritance
   • implements: interface implementations
   • depends-on: constructor dependencies, injected services
   • calls: function/method invocations
   • references: documentation mentions, comments