Why does my vector DB retrieval keep returning duplicate noise for my chat agent, and how to fix it?
This story is from 2026-10-07. It is preserved in the archive; the latest stories are on the live feed.
A user tells your chat agent they prefer dark mode, and it saves that. A week later they say they like the dark theme, and it saves that too. Now every question about settings pulls back "The user prefers dark mode.", "User likes the dark theme." and three chunks of the same onboarding guide: five…
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- 2026-10-07 09:12 · DEV Community — AI
Why does my vector DB retrieval keep returning duplicate noise for my chat agent, and how to fix it?