MCP is hitting a security and overhead reckoning in 2026: is the protocol itself flawed, or are teams just using it wrong?
This story is from 2026-09-30. It is preserved in the archive; the latest stories are on the live feed.
MCP isn't broken. Teams are using it wrong. Every "overhead" complaint in the last six months traces back to the same misuse: fetching tool schemas on every call instead of caching sessions once. That's not a protocol flaw. That's treating a capability-discovery layer like a request path. MCP was d…
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- 2026-09-30 14:30 · DEV Community — AI
MCP is hitting a security and overhead reckoning in 2026: is the protocol itself flawed, or are teams just using it wrong?