Glossary · AI
What is
Tool Use?
An LLM's ability to call external functions (search, calculator, database, etc.) during a response.
By Anish· Founder · Vedwix
·Definition
Tool use lets an LLM access information or take actions outside its weights. The model is given a list of available functions, decides when to call them based on the user query, and incorporates the results into its response. Modern frontier models (Claude, GPT-4) are tuned for tool use natively.
Example
A customer support bot that calls a "lookup_order" function when a user asks about their delivery, returning real shipment data.
How Vedwix uses Tool Use in client work
We define tool schemas with strict JSON schemas and validate every output before passing it to the next step.
Building with Tool Use?
We ship this.
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