The Context Window Is a Budget, Not a Memory: An FAQ With a Truncation Ledger
This story is from 2026-10-19. It is preserved in the archive; the latest stories are on the live feed.
Ask three developers how much context their agent has. You get three numbers. All three are wrong in different ways. The window size is a cap. It is not a memory budget, and it is not what you sent. Here is the FAQ I keep answering. Each answer ends with a corrected mental model you can test today.…
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- 2026-10-19 19:20 · DEV Community — AI
The Context Window Is a Budget, Not a Memory: An FAQ With a Truncation Ledger