Budget, prioritization, compaction, and provenance
A finite budget forces selection, compaction, or eviction while preserving provenance for what survives.
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The ideas to retain
The maximum context window is not your operational budget
Assume a provider exposes a total limit \(W\). An application may protect an output allowance \(O\), keep operational headroom \(M\), and reserve fixed mandatory content \(F\), such as…
A context item needs more than text
Selection becomes easier to reason about when each candidate is represented as more than a string:
Prioritization is not sorting by similarity score
A selector can estimate the utility of candidates, but a production system also needs hard constraints.
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