FA-99589 / RAG context assembly / Member archive

The assembler fills budget without required source coverage · case 04

The assembler fills budget without required source coverage.

Member previewVariant 4 · 3 implementations · 6 checks per implementation

Case contract

Rows are [source,text,cost]. Include the first fitting row for each required source in required order, then scan remaining rows in rank order without exceeding budget.

Why this case matters

A small deterministic evidence assembly model makes context budgeting behavior inspectable.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
reserve distinct sources	`[["A4", "a"], ["A4", "aa"]]`	`[["B4", "b"], ["A4", "a"]]`	Failed

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