Powerduck | OpenAPI Studio(@PowerduckLabs):An agent adds an index on `email` to speed up a slow query. It never gets picked up — the WHERE wraps the column in `LOWER(email)`. Plan stays identical. It measured unit-test runtime, called it done, moved on. Where do you verify an index is actually used?

Powerduck | OpenAPI Studio

@PowerduckLabs

I build Powerduck — local-first OpenAPI studio. Writing about spec drift, AI agents that lie about being done, and docs that drift for months.

Joined December 2025

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Powerduck | OpenAPI Studio@PowerduckLabs

2026.10.17 03:40

An agent adds an index on `email` to speed up a slow query. It never gets picked up — the WHERE wraps the column in `LOWER(email)`. Plan stays identical. It measured unit-test runtime, called it done, moved on. Where do you verify an index is actually used?