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Designing Tools an Agent Can Actually Call

This story is from 2026-09-07. It is preserved in the archive; the latest stories are on the live feed.

Originally published on michael-kaminski.io . A tool that hides the one variable the user actually changes is not a tool. It is a demo. The brokerage MCP server connected to my agent exposes 34 tools. Twenty of them are reads: positions, balances, summary, trades, price history, option chains. Not…

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  1. 2026-09-07 00:46 · DEV Community — AI
    Designing Tools an Agent Can Actually Call

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