Grounding via Tools

Grounding via tools is the practice of anchoring model outputs to verifiable, up-to-date information by having the agent actively fetch data through tool calls rather than relying solely on parametric knowledge. A grounded agent retrieves current prices, live documents, or database records at inference time, substantially reducing hallucination on factual questions. Grounding is complementary to RAG: retrieval tools give the agent the ability to ground itself on demand rather than via a fixed pre-fetched context.