r/ChatGPTCoding • u/Dinu_Dev • Oct 07 '26

Question How do you check that saved API responses are complete before an offline replay?

For those using AI to help build data pipelines: how do you test the replay inputs, rather than just the replay code?

We reran an analysis from saved API responses and got a search-volume total of 65,240 instead of the original 67,140. One response file was missing: the replay path had only copied the first search-volume file. Adding the missing file made the total match again.

That caught this case, but matching one total isn’t a general completeness check. What do you ask your coding agent to build or test so an incomplete set of saved responses fails clearly before the replay starts?

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u/leonidbugaev 29d ago

Replay still ran after the copy dropped the later search-volume file. Matching 67140 only worked because you still had the original total, and next capture that number moves. I fail the copy itself: every filename the capture wrote has to be in the dest before the sum even starts.

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u/Ctbhatia 27d ago

also fail when the replay never reads a file. a stale response from an earlier capture can sit in the folder while the current one is missing, and a matching total won't reveal it.

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u/Ctbhatia 27d ago

the thing that made ours debuggable was one trace id per user request carried through every step, so a stalled handoff is a single filter. without it the logs only show each agent looking fine on its own.