MCP server checks are becoming part of AI agent safety
An MCP server helps an AI agent connect to outside tools, files, and services. Installing one can give it access to the , tool actions, and sometimes API keys, so a risky server can create a serious security problem.
A recent review of 1,899 found in 5.5% of them and known weak code patterns in 14.4%. OX Security also disclosed a broad issue in the MCP SDK that could affect many servers.
can hide inside tool descriptions, which are read by the model, so normal code scanning may miss it. Teams need a real way to check before use, such as reviewing trust, limiting , and pinning versions.
Key points
- can give AI agents access to tools, files, and API keys.
- A review of 1,899 found in 5.5%.
- The same review found known weak code patterns in 14.4%.
- OX Security disclosed a issue in the MCP SDK.
- Tool descriptions can carry hidden instructions that normal code scans may miss.