Scratchpads and Externalised Working Memory
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An agent that needs to remember something has two places to put it: inside the window, where it is re-sent and re-billed on every turn, or in a file, where it costs nothing until it is read. The choice has an arithmetic answer more often than people expect. The window is not the only memory Context is a strange kind of storage. It is read on every single turn whether or not it is needed, it is charged per read, its capacity is fixed, and writing to it is append-only with no update operation.…
1Key Takeaways
- An agent that needs to remember something has two places to put it: inside the window, where it is re-sent and re-billed on every turn, or in a file, where it costs nothing until it is read.
- The choice has an arithmetic answer more often than people expect.
- The window is not the only memory Context is a strange kind of storage.
- It is read on every single turn whether or not it is needed, it is charged per read, its capacity is fixed, and writing to it is append-only with no update operation.….
2AIWedia Score
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3Why it matters
Coding AI shifts how fast software ships and how much human review each change needs. DEV — ML reports that an agent that needs to remember something has two places to put it: inside the window, where it is re-sent and re-billed on every turn, or in a file, where it costs nothing until it is read.
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