Comment by rixed
4 hours ago
Yes I believe it is preloaded (from a recent test with latest claude-code actually). But that's an issue with the harness not something that's mandated by the MCP protocol.
4 hours ago
Yes I believe it is preloaded (from a recent test with latest claude-code actually). But that's an issue with the harness not something that's mandated by the MCP protocol.
I like MCP, but most servers and harnesses just dump all of the tools into context each message. Also the default tutorials for everything around MCP say to dump tools this way.
It’s really hard to determine which tools an agent will need on the fly. The best idea I’ve seen was to do a “search tools” tool which an agent would use to find relevant tools, then have an “execute tool” tool which did what it says.
Alternatively, if you’re using an agent that’s good with code, give it something like “port of context” (pctx) which translates MCP tools into a JavaScript package so the agent can chain MCP tools together with code, and they can filter the data down to just what they need. I haven’t used this method much yet but soon I need to improve the MCP gateway in our cloud agent builder product so I’m going to try this one out soon myself.