Unverified50% confidenceFactExact time
Even if a user never actually calls a particular MCP tool, its definition is still sent to the model with every message and billed accordingly.
1
Sources
50%
Confidence
Long-term
Relevance
10/11/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedIn MCP, tools are functions that the model can execute, resources are read-only data with no side effects, and prompts are reusable templates that users actively select.80% similarVerifiedMCP定义了一套通用的客户端-服务器通信规范，使任何遵循该协议的工具都能被任何支持MCP的大模型直接调用76% similarVerifiedIn MCP, Tools are invoked at the model's discretion, Prompts are triggered by the user, and Resources are controlled by the application.76% similarUnverifiedMCP tool definitions are billed in every round of conversation, regardless of whether a tool is actually called in that round.75% similar
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