5 MCP Pain Points Every Developer Hits (And How a 50KB CLI Fixes Them)

I've been using MCP servers with Claude Code, Cursor, and Codex for months. Every developer who connects more than 2 MCP servers hits the same wall of problems. They're not bugs — they're design gaps in the protocol itself.

Here are the 5 pain points I hit every day, and how I solved them with mcptoon — a 50KB CLI with zero dependencies.

Pain 1: Context Window Death

Connect 5 MCP servers with browser tools (Puppeteer, Playwright, etc.) and you get 50-100K tokens of JSON schema injected into your context before you even ask a question.