How I Cut MCP Token Usage by 91% (and Learned a Humbling Lesson About Tokenizers)

The Problem When you add MCP servers to your AI coding agent, each one dumps its full JSON schema into context. 255 tools across all servers = 39,964 tokens. On a 128K context window, that's 31% gone before you type a single character.

Source: [Dev.to](https://dev.to/mcptokensaver/how-i-cut-mcp-token-usage-by-91-and-learned-a-humbling-lesson-about-tokenizers-5hl1)