ByteDance SE Lab

Feb 27, 2026 · Artificial Intelligence

How to Build Secure, Scalable LLM Agent Tools: Best Practices & Real-World Cases

This article explains why robust Agent Tools are essential for LLM agents, outlines a five‑stage lifecycle with concrete design principles such as type safety, LLM‑friendly interfaces, OpenAPI integration, self‑healing error handling, human‑in‑the‑loop safeguards, and performance optimizations, and demonstrates their impact through retail and fintech case studies.