A Trace Proves What Ran, Not That the Answer Is Right
hugobowne · x · 2026-09-04
Hugo Browne opens his thread of 11 lessons learned from Hamel Husain about building AI products in the age of agents. The hook: an agent returned $4.21M of net revenue without showing the definition, tables, filters, joins, dates or fiscal calendar — 'what the hell is net revenue?' Point 2: a trace proves what ran, not that the answer is right; even after inspecting the SQL and every tool call, you still need a domain expert to catch the wrong table, definition or assumption.
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