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When AI Agents Hammer tools/list: Building a Caching-Aware MCP Server (SEP-2549)

This story is from 2026-09-21. It is preserved in the archive; the latest stories are on the live feed.

Part 2 of 2. Part 1 covered statelessness; here I tackle caching. Part 1 was about statelessness, now shipped in the 2026-07-28 spec. This time it's another feature from that same spec: caching (SEP-2549, "TTL for List Results") . It adds two tiny fields — ttlMs and cacheScope — to cacheable result…

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  1. 2026-09-21 03:30 · DEV Community — AI
    When AI Agents Hammer tools/list: Building a Caching-Aware MCP Server (SEP-2549)

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