FA-99557 / RAG context assembly / Member archive
Overlapping neighboring chunks repeat evidence tokens · case 02
Overlapping neighboring chunks repeat evidence tokens.
Case contract
For token-list chunks, concatenate in order while removing the maximal exact suffix/prefix overlap with accumulated output.
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 |
|---|---|---|---|
| two token overlap | ["x2", "y2", "z2", "y2", "z2", "q"] | ["x2", "y2", "z2", "q"] | Failed |
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