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Question

Does filtering MCP server tools reduce agent latency?

Answered from AI Interview #9 - Why is the Agent so slow? · Gaurav Sen · 2026-10-16

Yes, in Tanishk's answer on Gaurav Sen's channel. A company MCP server might expose 10 tools while one department's agent needs only 5, so the agent should be given a filtered list before calling the server. That reduces latency and also saves context, which matters when the agent has no memory beyond its own context window.

▸In their words

“So that it will solve two problems with one type of solution.” Tanishk · at 3:50 — open in the transcript →

Source: our own transcription of the episode. The full conversation is on Gaurav Sen (2026-10-16). Read the whole episode summary →

▸More from this episode

Q1Why is an AI agent slow, according to Gaurav Sen's AI interview #9?Q2Should AI agent tool calls be synchronous or asynchronous?Q4How do you speed up a slow tool in an LLM agent?Q5Is a multi-agent system needed for a performance-review AI agent?
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