Skill: Obsidian Knowledge Graph

Purpose

Implements an Obsidian-compatible knowledge graph (agents/knowledge_graph.py) with typed edges,
BFS shortest-path, connected components, and import/export.

Usage

from agents.knowledge_graph import KnowledgeGraph, KnowledgeNode, EdgeType

g = KnowledgeGraph()
g.add_node(KnowledgeNode(node_id="n1", label="Python", tags=["language"]))
g.add_node(KnowledgeNode(node_id="n2", label="FastAPI", tags=["framework"]))
g.add_edge("n1", "n2", EdgeType.SUPPORTS)

path = g.shortest_path("n1", "n2")  # ["n1", "n2"]

Key Classes

• KnowledgeNode — labeled node with content, tags, confidence
• KnowledgeGraph — directed graph, typed edges, BFS, components, export
• EdgeType — REFERENCES, DEPENDS_ON, RELATES_TO, PARENT_OF, CONTRADICTS, SUPPORTS

Testing

python -m pytest tests/test_knowledge_graph.py -v

Related Issues

• Issue #232: Obsidian Knowledge Graph