Function Calling in Production: Patterns and Pitfalls
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AI Engineering
18 min read11 min read

Function Calling in Production: Patterns and Pitfalls

Turning LLMs into action-takers. Covers function design, error handling, security, validation, and building reliable tool-using AI systems.

Debasish Maji
Debasish Maji
AI Engineering Lead
May 6, 2026