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Design text-to-SQL for executives, where a wrong-but-plausible query must never mislead anyone

Text-to-SQL's nightmare isn't syntax errors, it's the query that runs, returns a confident number, and is silently wrong. The defense is a semantic layer plus transparency UX. Here's the full design.

Updated Aug 2026 · Grounded in real Forward Deployed Engineer interview loops and written to a senior-engineer editorial bar.

Text-to-SQL's nightmare isn't syntax errors, it's the query that runs, returns a confident number, and is silently wrong. The defense is a semantic layer plus transparency UX. Here's the full design.

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