A rule in the system prompt lost to three error messages lower in the transcript. The same rule as loop code worked on the first try
This story is from 2026-08-31. It is preserved in the archive; the latest stories are on the live feed.
Ran a small experiment for a video with an 80-line agent (one model, three tools, a while loop). I broke its file-read tool so every call returns "temporarily unavailable, try again", then put one rule in the system prompt: never repeat a tool call that already failed. The model read that rule on e…
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- 2026-08-31 15:56 · r/PromptEngineering
A rule in the system prompt lost to three error messages lower in the transcript. The same rule as loop code worked on the first try
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