Your agent did not forget your instructions. It compressed them out.
This story is from 2026-09-26. It is preserved in the archive; the latest stories are on the live feed.
Long agent runs rarely fail at a tool call. They fail at a compaction boundary, and almost nobody instruments it. The failure When the context window fills, something has to decide what to throw away. Every agent harness does this. Most do it by summarising. If the goal statement is not preserved v…
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- 2026-09-26 01:30 · DEV Community — AI
Your agent did not forget your instructions. It compressed them out.