"Your MCP server's tool list can be refused before the model sees it: the rules three AI APIs applied to 21,812 lists"
This story is from 2026-10-28. It is preserved in the archive; the latest stories are on the live feed.
We read the tool lists of MCP servers in the official MCP registry. Then we sent each list, once, to three small AI models through their vendors' Batch APIs: Claude Haiku 5.5, GPT-5-nano and Gemini 2.5 Flash. Each model was set to its lowest reasoning level and got one fixed request. That was 21,81…
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- 2026-10-28 19:32 · DEV Community — AI
"Your MCP server's tool list can be refused before the model sees it: the rules three AI APIs applied to 21,812 lists"