arXivYutao Shi, Xiaohan Zhang, Xiangjing Zhang, Xihua Shen, Hui Ouyang, Huming Qiu, Mi Zhang, Min YangWed, Jun 3, 2026, 4:51 AM PDT

score 17.1

AI tool descriptions don't match their actual behavior in practice

Original: Description-Code Inconsistency in Real-world MCP Servers: Measurement, Detection, and Security Implications

Writing ELI5 summary…