Unverified50% confidenceFactExact time
Early MCP implementations would inject the complete JSON Schema of all registered tools into the system prompt at once, and connecting to 5 servers could consume approximately 50,000 tokens before the Agent even began working
1
Sources
50%
Confidence
Long-term
Relevance
10/9/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedThe official Playwright MCP server currently exposes more than 20 tools, each of which must be declared in JSON Schema format and injected into the context all at once before the conversation begins.77% similarUnverifiedMany MCP implementations preload all tool descriptions and JSON Schemas before actually starting work, causing the context window to be filled with metadata.76% similarUnverifiedMCP Server在Client首次连接时会执行握手过程，返回支持的工具列表、功能描述、输入参数的JSON Schema定义和返回值格式75% similarVerifiedWhen connecting to multiple MCP servers simultaneously, tool descriptions alone can consume thousands or even tens of thousands of tokens.74% similarUnverifiedMost MCP Servers can be launched with a single npx command, and after configuring the corresponding API Token, the Agent can invoke them.72% similar
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