MCP Doesn't Suck. Your Agent Does. — Jan Čurn, Apify
Source
youtube.com
Author
AI Engineer
Date
Why it matters
Reframes context windowThe maximum amount of text a model can consider at once — its working memory for the current conversation or task.Full definition → bloat and tokenThe chunk of text a model reads and writes in — roughly three-quarters of a word — and the unit AI usage is billed in.Full definition → burn as agent harnessThe scaffolding around a model that turns it into a working agent — the loop, the tools it can call, and the rules for when to stop.Full definition → bugs and lays out the fixes (progressive discovery, Code Mode, CLI locally, MCPThe Model Context Protocol — an open standard that lets any AI assistant plug into any tool or data source without custom integration code.Full definition → remotely) engineers can apply when designing tool access.
Terms in this piece · Glossary
MCP — The Model Context Protocol — an open standard that lets any AI assistant plug into any tool or data source without custom integration code.
context window — The maximum amount of text a model can consider at once — its working memory for the current conversation or task.
token — The chunk of text a model reads and writes in — roughly three-quarters of a word — and the unit AI usage is billed in.
agent harness — The scaffolding around a model that turns it into a working agent — the loop, the tools it can call, and the rules for when to stop.