What changes when you add an agent to GraphRAG? Here's a quick Q&A 🕸️
Agentic GraphRAG: How does an AI agent use a knowledge graph?
❓ How is it different from regular GraphRAG?
💡 The agent gets control of graph retrieval. At runtime it decides where to start, which tool to call, how far to follow relationships, and when it has enough context.
❓ How does it work in practice?
💡 A ReAct loop: check the schema, run a query, observe the result, repeat. "Which other customers hit the same issue?" takes three steps:
・Vector search finds the matching ticket
・A query finds the error the ticket reports
・A query reaches other customers who reported that error
❓ Is it safe to let it write to the graph?
💡 Only if reads and writes are separated. Writes are guarded by narrow permissions, schema checks, confidence thresholds, or human approval. A context graph that stores past decisions and outcomes extends the same idea.
❓ When is it worth building?
💡 When retrieval paths vary by question, the domain keeps changing, or past decisions should inform future ones. Fixed paths are often faster, so start with a working GraphRAG and add autonomy only where it falls short.
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