FA-99568 / RAG context assembly / Member archive
Whole-chunk prefix assembly slices text at a token limit · case 03
Whole-chunk prefix assembly slices text at a token limit.
Case contract
Rows are [text,cost]; return the longest input prefix of whole texts whose cumulative cost fits budget. Stop at the first non-fitting row.
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 |
|---|---|---|---|
| whole chunks | ["abc", "de"] | ["abc"] | Failed |
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