FA-99582 / RAG context assembly / Member archive
Context budget double-counts shared token overlap · case 02
Context budget double-counts shared token overlap.
Case contract
Token-list chunks append under budget; each later chunk incurs only tokens after maximal exact suffix-prefix overlap. Return assembled tokens.
Why this case matters
A small deterministic evidence assembly model makes context budgeting behavior inspectable.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| overlap permits fit | ["a2", "b2", "c2", "b2"] | ["a2", "b2", "c2", "d"] | Failed |
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