Your Agent's Tool Descriptions Are Costing You 66% Accuracy
This story is from 2026-09-15. It is preserved in the archive; the latest stories are on the live feed.
A $4 experiment rewrote three strings per MCP tool and moved SQLite success from 34% to 100%. The model never changed. The failure was never the model. SQLite strict success rate: 34%. That is a failing grade on a benchmark nobody was running. Toolmetry, an open-source project that measures how wel…
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- 2026-09-15 18:56 · DEV Community — AI
Your Agent's Tool Descriptions Are Costing You 66% Accuracy