# The Next MCP Problem: Why Tool Connectivity Was the Easy Part - slug: the-next-mcp-problem-why-tool-connectivity-was-the-easy-part - date: 2026-04-19 - category: Agentics When an AI model uses the tool-sharing protocol MCP the obvious way, it spends more than 20% of its context window just reading the menu. The fix exists. The protocol does not require it. ---