This matches my experience building in-house MCP servers. The mechanism I prefer on load is something like a quick FTS5 with BM25 ranking lookup to find what it needs, and then serve those. I think a lot of these things are implemented pretty naively - for instance, we ran into the huge context problem with Jira, so we just built our own Jira MCP interface that doesn't have all the bloat. If the agent finds it needs something it doesnt have, it can ask again.

The real issue isn't MCP, it's these fucking bots posting here every day.

claude code solved this about a month ago

This is becoming a solved problem with tool search; MCP is back.