How do you test agent model switches for silent tool-call regressions before shipping?
Fun_Employment6042 · reddit · 2026-10-02
A developer running an AI agent app (tool calling, multi-step) plans to switch models for cost and newer versions, but fears silent regressions: dropped tool calls, slightly different arguments, or wrong tool choices that text-only diffs miss. They ask how others test model migrations—real tools, homegrown scripts, or ship-and-watch—and which setups actually caught issues.
Related event: Dev asks how to catch silent regressions before swapping agent models(2 posts)→
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