What is the purpose of a tool contract in the context of tool wrappers?

• A. To enable discovery and standardize interfaces of tools.
• B. To encrypt tool communications to protect data in transit.
• C. To provide a user-facing tutorial for each tool.
• D. To define color coding for tool outputs.

Answer: (A)

The tool contract is about making tools speak a common language. It defines the expected interface and metadata that a tool must expose so wrappers and orchestrators can treat different tools uniformly. By detailing what inputs the tool accepts (names, data types, required vs optional), what outputs it produces (structure, formats), and the tool’s behavior (capabilities, timeouts, error formats), the contract lets the system discover available tools and know exactly how to call them without writing tool-specific code. It also enables safe composition of tools into pipelines, easy swapping of tools, and consistent error handling and results across diverse tools and versions. This is why its primary purpose is to enable discovery and standardize interfaces of tools. The other options—encryption for data in transit, user-facing tutorials, and color coding of outputs—don’t capture this interoperability and invocation standard the contract provides.