Analysis
What Is LLM Function Calling? Definition & Examples
Publication date unknown · Discovered nhimg.org
Page published
Publication date unknown · First observed: 11 Nov 2026
Coverage timeline
Single-source analysis — one report is available.
Why it matters
LLM function calling creates a security boundary where defenders must validate model-requested actions and enforce authorization before tools access data or change business systems.
NHIMG’s LLM Function Calling glossary entry explains how model-generated function requests cross into application-controlled execution. The reference describes prompt injection, unsafe arguments, and excessive tool permissions as general risks, recommending strict schemas, server-side validation, scoped permissions, and approval checks rather than reporting a new vulnerability or incident.